Variables

Variables hold multi-dimensional arrays of data. More...

Functions
size_t	NC_atomictypelen (nc_type xtype)
char *	NC_atomictypename (nc_type xtype)
int	NC_check_nulls (int ncid, int varid, const size_t *start, size_t **count, ptrdiff_t **stride)
int	NC_getshape (int ncid, int varid, int ndims, size_t *shape)
int	NC_inq_recvar (int ncid, int varid, int *nrecdimsp, int *is_recdim)
int	NC_is_recvar (int ncid, int varid, size_t *nrecs)
int	nctypelen (nc_type type)

Defining Variables
Use these functions to define variables.
int	nc_def_var (int ncid, const char *name, nc_type xtype, int ndims, const int *dimidsp, int *varidp)
	Define a new variable. More...
int	nc_def_var_fill (int ncid, int varid, int no_fill, const void *fill_value)
	Set the fill value for a variable. More...
int	nc_def_var_deflate (int ncid, int varid, int shuffle, int deflate, int deflate_level)
	Set the zlib compression and shuffle settings for a variable in an netCDF/HDF5 file. More...
int	nc_def_var_fletcher32 (int ncid, int varid, int fletcher32)
	Set checksum for a var. More...
int	nc_def_var_chunking (int ncid, int varid, int storage, const size_t *chunksizesp)
	Define storage and, if chunked storage is used, chunking parameters for a variable. More...
int	nc_def_var_endian (int ncid, int varid, int endian)
	Define endianness of a variable. More...
int	nc_def_var_szip (int ncid, int varid, int options_mask, int pixels_per_block)
	Set szip compression settings on a variable. More...

Rename a Variable
Rename a variable.
int	nc_rename_var (int ncid, int varid, const char *name)
	Rename a variable. More...

Free String Resources
Use this functions to free resources associated with NC_STRING data.
int	nc_free_string (size_t len, char **data)
	Free string space allocated by the library. More...

Variables Chunk Caches
Use these functions to change the variable chunk cache settings.
int	nc_set_var_chunk_cache (int ncid, int varid, size_t size, size_t nelems, float preemption)
	Change the cache settings for a chunked variable. More...
int	nc_get_var_chunk_cache (int ncid, int varid, size_t *sizep, size_t *nelemsp, float *preemptionp)
	Get the per-variable chunk cache settings from the HDF5 layer. More...

Reading Data from Variables
Functions to read data from variables.
int	nc_get_vara (int ncid, int varid, const size_t *startp, const size_t *countp, void *ip)
int	nc_get_vara_text (int ncid, int varid, const size_t *startp, const size_t *countp, char *ip)
int	nc_get_vara_schar (int ncid, int varid, const size_t *startp, const size_t *countp, signed char *ip)
int	nc_get_vara_uchar (int ncid, int varid, const size_t *startp, const size_t *countp, unsigned char *ip)
int	nc_get_vara_short (int ncid, int varid, const size_t *startp, const size_t *countp, short *ip)
int	nc_get_vara_int (int ncid, int varid, const size_t *startp, const size_t *countp, int *ip)
int	nc_get_vara_long (int ncid, int varid, const size_t *startp, const size_t *countp, long *ip)
int	nc_get_vara_float (int ncid, int varid, const size_t *startp, const size_t *countp, float *ip)
int	nc_get_vara_double (int ncid, int varid, const size_t *startp, const size_t *countp, double *ip)
int	nc_get_vara_ubyte (int ncid, int varid, const size_t *startp, const size_t *countp, unsigned char *ip)
int	nc_get_vara_ushort (int ncid, int varid, const size_t *startp, const size_t *countp, unsigned short *ip)
int	nc_get_vara_uint (int ncid, int varid, const size_t *startp, const size_t *countp, unsigned int *ip)
int	nc_get_vara_longlong (int ncid, int varid, const size_t *startp, const size_t *countp, long long *ip)
int	nc_get_vara_ulonglong (int ncid, int varid, const size_t *startp, const size_t *countp, unsigned long long *ip)
int	nc_get_vara_string (int ncid, int varid, const size_t *startp, const size_t *countp, char **ip)
int	nc_get_var1 (int ncid, int varid, const size_t *indexp, void *ip)
int	nc_get_var1_text (int ncid, int varid, const size_t *indexp, char *ip)
int	nc_get_var1_schar (int ncid, int varid, const size_t *indexp, signed char *ip)
int	nc_get_var1_uchar (int ncid, int varid, const size_t *indexp, unsigned char *ip)
int	nc_get_var1_short (int ncid, int varid, const size_t *indexp, short *ip)
int	nc_get_var1_int (int ncid, int varid, const size_t *indexp, int *ip)
int	nc_get_var1_long (int ncid, int varid, const size_t *indexp, long *ip)
int	nc_get_var1_float (int ncid, int varid, const size_t *indexp, float *ip)
int	nc_get_var1_double (int ncid, int varid, const size_t *indexp, double *ip)
int	nc_get_var1_ubyte (int ncid, int varid, const size_t *indexp, unsigned char *ip)
int	nc_get_var1_ushort (int ncid, int varid, const size_t *indexp, unsigned short *ip)
int	nc_get_var1_uint (int ncid, int varid, const size_t *indexp, unsigned int *ip)
int	nc_get_var1_longlong (int ncid, int varid, const size_t *indexp, long long *ip)
int	nc_get_var1_ulonglong (int ncid, int varid, const size_t *indexp, unsigned long long *ip)
int	nc_get_var1_string (int ncid, int varid, const size_t *indexp, char **ip)
int	nc_get_var (int ncid, int varid, void *ip)
int	nc_get_var_text (int ncid, int varid, char *ip)
int	nc_get_var_schar (int ncid, int varid, signed char *ip)
int	nc_get_var_uchar (int ncid, int varid, unsigned char *ip)
int	nc_get_var_short (int ncid, int varid, short *ip)
int	nc_get_var_int (int ncid, int varid, int *ip)
int	nc_get_var_long (int ncid, int varid, long *ip)
int	nc_get_var_float (int ncid, int varid, float *ip)
int	nc_get_var_double (int ncid, int varid, double *ip)
int	nc_get_var_ubyte (int ncid, int varid, unsigned char *ip)
int	nc_get_var_ushort (int ncid, int varid, unsigned short *ip)
int	nc_get_var_uint (int ncid, int varid, unsigned int *ip)
int	nc_get_var_longlong (int ncid, int varid, long long *ip)
int	nc_get_var_ulonglong (int ncid, int varid, unsigned long long *ip)
int	nc_get_var_string (int ncid, int varid, char **ip)
int	nc_get_vars (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, void *ip)
int	nc_get_vars_text (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, char *ip)
int	nc_get_vars_schar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, signed char *ip)
int	nc_get_vars_uchar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, unsigned char *ip)
int	nc_get_vars_short (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, short *ip)
int	nc_get_vars_int (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, int *ip)
int	nc_get_vars_long (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, long *ip)
int	nc_get_vars_float (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, float *ip)
int	nc_get_vars_double (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, double *ip)
int	nc_get_vars_ubyte (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, unsigned char *ip)
int	nc_get_vars_ushort (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, unsigned short *ip)
int	nc_get_vars_uint (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, unsigned int *ip)
int	nc_get_vars_longlong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, long long *ip)
int	nc_get_vars_ulonglong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, unsigned long long *ip)
int	nc_get_vars_string (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, char **ip)
int	nc_get_varm (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, void *ip)
int	nc_get_varm_schar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, signed char *ip)
int	nc_get_varm_uchar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, unsigned char *ip)
int	nc_get_varm_short (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, short *ip)
int	nc_get_varm_int (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, int *ip)
int	nc_get_varm_long (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, long *ip)
int	nc_get_varm_float (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, float *ip)
int	nc_get_varm_double (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, double *ip)
int	nc_get_varm_ubyte (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, unsigned char *ip)
int	nc_get_varm_ushort (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, unsigned short *ip)
int	nc_get_varm_uint (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, unsigned int *ip)
int	nc_get_varm_longlong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, long long *ip)
int	nc_get_varm_ulonglong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, unsigned long long *ip)
int	nc_get_varm_text (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, char *ip)
int	nc_get_varm_string (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, char **ip)

Learning about Variables
Functions to learn about the variables in a file.
int	nc_inq_varid (int ncid, const char *name, int *varidp)
int	nc_inq_var (int ncid, int varid, char *name, nc_type *xtypep, int *ndimsp, int *dimidsp, int *nattsp)
int	nc_inq_varname (int ncid, int varid, char *name)
int	nc_inq_vartype (int ncid, int varid, nc_type *typep)
	Learn the type of a variable. More...
int	nc_inq_varndims (int ncid, int varid, int *ndimsp)
	Learn how many dimensions are associated with a variable. More...
int	nc_inq_vardimid (int ncid, int varid, int *dimidsp)
	Learn the dimension IDs associated with a variable. More...
int	nc_inq_varnatts (int ncid, int varid, int *nattsp)
	Learn how many attributes are associated with a variable. More...
int	nc_inq_var_deflate (int ncid, int varid, int *shufflep, int *deflatep, int *deflate_levelp)
int	nc_inq_var_fletcher32 (int ncid, int varid, int *fletcher32p)
int	nc_inq_var_chunking (int ncid, int varid, int *storagep, size_t *chunksizesp)
int	nc_inq_var_fill (int ncid, int varid, int *no_fill, void *fill_valuep)
int	nc_inq_var_endian (int ncid, int varid, int *endianp)
int	nc_inq_var_szip (int ncid, int varid, int *options_maskp, int *pixels_per_blockp)
int	nc_inq_unlimdims (int ncid, int *nunlimdimsp, int *unlimdimidsp)
	Return number and list of unlimited dimensions. More...

Writing Data to Variables
Functions to write data from variables.
int	nc_put_vara (int ncid, int varid, const size_t *startp, const size_t *countp, const void *op)
int	nc_put_vara_text (int ncid, int varid, const size_t *startp, const size_t *countp, const char *op)
int	nc_put_vara_schar (int ncid, int varid, const size_t *startp, const size_t *countp, const signed char *op)
int	nc_put_vara_uchar (int ncid, int varid, const size_t *startp, const size_t *countp, const unsigned char *op)
int	nc_put_vara_short (int ncid, int varid, const size_t *startp, const size_t *countp, const short *op)
int	nc_put_vara_int (int ncid, int varid, const size_t *startp, const size_t *countp, const int *op)
int	nc_put_vara_long (int ncid, int varid, const size_t *startp, const size_t *countp, const long *op)
int	nc_put_vara_float (int ncid, int varid, const size_t *startp, const size_t *countp, const float *op)
int	nc_put_vara_double (int ncid, int varid, const size_t *startp, const size_t *countp, const double *op)
int	nc_put_vara_ubyte (int ncid, int varid, const size_t *startp, const size_t *countp, const unsigned char *op)
int	nc_put_vara_ushort (int ncid, int varid, const size_t *startp, const size_t *countp, const unsigned short *op)
int	nc_put_vara_uint (int ncid, int varid, const size_t *startp, const size_t *countp, const unsigned int *op)
int	nc_put_vara_longlong (int ncid, int varid, const size_t *startp, const size_t *countp, const long long *op)
int	nc_put_vara_ulonglong (int ncid, int varid, const size_t *startp, const size_t *countp, const unsigned long long *op)
int	nc_put_vara_string (int ncid, int varid, const size_t *startp, const size_t *countp, const char **op)
int	nc_put_var1 (int ncid, int varid, const size_t *indexp, const void *op)
int	nc_put_var1_text (int ncid, int varid, const size_t *indexp, const char *op)
int	nc_put_var1_schar (int ncid, int varid, const size_t *indexp, const signed char *op)
int	nc_put_var1_uchar (int ncid, int varid, const size_t *indexp, const unsigned char *op)
int	nc_put_var1_short (int ncid, int varid, const size_t *indexp, const short *op)
int	nc_put_var1_int (int ncid, int varid, const size_t *indexp, const int *op)
int	nc_put_var1_long (int ncid, int varid, const size_t *indexp, const long *op)
int	nc_put_var1_float (int ncid, int varid, const size_t *indexp, const float *op)
int	nc_put_var1_double (int ncid, int varid, const size_t *indexp, const double *op)
int	nc_put_var1_ubyte (int ncid, int varid, const size_t *indexp, const unsigned char *op)
int	nc_put_var1_ushort (int ncid, int varid, const size_t *indexp, const unsigned short *op)
int	nc_put_var1_uint (int ncid, int varid, const size_t *indexp, const unsigned int *op)
int	nc_put_var1_longlong (int ncid, int varid, const size_t *indexp, const long long *op)
int	nc_put_var1_ulonglong (int ncid, int varid, const size_t *indexp, const unsigned long long *op)
int	nc_put_var1_string (int ncid, int varid, const size_t *indexp, const char **op)
int	nc_put_var (int ncid, int varid, const void *op)
int	nc_put_var_text (int ncid, int varid, const char *op)
int	nc_put_var_schar (int ncid, int varid, const signed char *op)
int	nc_put_var_uchar (int ncid, int varid, const unsigned char *op)
int	nc_put_var_short (int ncid, int varid, const short *op)
int	nc_put_var_int (int ncid, int varid, const int *op)
int	nc_put_var_long (int ncid, int varid, const long *op)
int	nc_put_var_float (int ncid, int varid, const float *op)
int	nc_put_var_double (int ncid, int varid, const double *op)
int	nc_put_var_ubyte (int ncid, int varid, const unsigned char *op)
int	nc_put_var_ushort (int ncid, int varid, const unsigned short *op)
int	nc_put_var_uint (int ncid, int varid, const unsigned int *op)
int	nc_put_var_longlong (int ncid, int varid, const long long *op)
int	nc_put_var_ulonglong (int ncid, int varid, const unsigned long long *op)
int	nc_put_var_string (int ncid, int varid, const char **op)
int	nc_put_vars (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const void *op)
int	nc_put_vars_text (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const char *op)
int	nc_put_vars_schar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const signed char *op)
int	nc_put_vars_uchar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const unsigned char *op)
int	nc_put_vars_short (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const short *op)
int	nc_put_vars_int (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const int *op)
int	nc_put_vars_long (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const long *op)
int	nc_put_vars_float (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const float *op)
int	nc_put_vars_double (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const double *op)
int	nc_put_vars_ubyte (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const unsigned char *op)
int	nc_put_vars_ushort (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const unsigned short *op)
int	nc_put_vars_uint (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const unsigned int *op)
int	nc_put_vars_longlong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const long long *op)
int	nc_put_vars_ulonglong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const unsigned long long *op)
int	nc_put_vars_string (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const char **op)
int	nc_put_varm (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const void *op)
int	nc_put_varm_text (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const char *op)
int	nc_put_varm_schar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const signed char *op)
int	nc_put_varm_uchar (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const unsigned char *op)
int	nc_put_varm_short (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const short *op)
int	nc_put_varm_int (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const int *op)
int	nc_put_varm_long (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const long *op)
int	nc_put_varm_float (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const float *op)
int	nc_put_varm_double (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const double *op)
int	nc_put_varm_ubyte (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const unsigned char *op)
int	nc_put_varm_ushort (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const unsigned short *op)
int	nc_put_varm_uint (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const unsigned int *op)
int	nc_put_varm_longlong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const long long *op)
int	nc_put_varm_ulonglong (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const unsigned long long *op)
int	nc_put_varm_string (int ncid, int varid, const size_t *startp, const size_t *countp, const ptrdiff_t *stridep, const ptrdiff_t *imapp, const char **op)

Detailed Description

Variables hold multi-dimensional arrays of data.

Variables for a netCDF dataset are defined when the dataset is created, while the netCDF dataset is in define mode. Other variables may be added later by reentering define mode. A netCDF variable has a name, a type, and a shape, which are specified when it is defined. A variable may also have values, which are established later in data mode.

Ordinarily, the name, type, and shape are fixed when the variable is first defined. The name may be changed, but the type and shape of a variable cannot be changed. However, a variable defined in terms of the unlimited dimension can grow without bound in that dimension.

A netCDF variable in an open netCDF dataset is referred to by a small integer called a variable ID.

Variable IDs reflect the order in which variables were defined within a netCDF dataset. Variable IDs are 0, 1, 2,..., in the order in which the variables were defined. A function is available for getting the variable ID from the variable name and vice-versa.

Attributes may be associated with a variable to specify such properties as units.

Operations supported on variables are:

• Create a variable, given its name, data type, and shape.
• Get a variable ID from its name.
• Get a variable's name, data type, shape, and number of attributes from its ID.
• Put a data value into a variable, given variable ID, indices, and value.
• Put an array of values into a variable, given variable ID, corner indices, edge lengths, and a block of values.
• Put a subsampled or mapped array-section of values into a variable, given variable ID, corner indices, edge lengths, stride vector, index mapping vector, and a block of values.
• Get a data value from a variable, given variable ID and indices.
• Get an array of values from a variable, given variable ID, corner indices, and edge lengths.
• Get a subsampled or mapped array-section of values from a variable, given variable ID, corner indices, edge lengths, stride vector, and index mapping vector.
• Rename a variable.

Data Types

NetCDF supported six atomic data types through version 3.6.0 (char, byte, short, int, float, and double). Starting with version 4.0, many new atomic and user defined data types are supported (unsigned int types, strings, compound types, variable length arrays, enums, opaque).

The additional data types are only supported in netCDF-4/HDF5 files. To create netCDF-4/HDF5 files, use the NC_NETCDF4 flag in nc_create().

NetCDF-3 Classic and 64-Bit Offset Data Types

NetCDF-3 classic and 64-bit offset files support 6 atomic data types, and none of the user defined datatype introduced in NetCDF-4.

The following table gives the netCDF-3 external data types and the corresponding type constants for defining variables in the C interface:

Type	C define	Bits
byte	NC_BYTE	8
char	NC_CHAR	8
short	NC_SHORT	16
int	NC_INT	32
float	NC_FLOAT	32
double	NC_DOUBLE	64

The first column gives the netCDF external data type, which is the same as the CDL data type. The next column gives the corresponding C pre-processor macro for use in netCDF functions (the pre-processor macros are defined in the netCDF C header-file netcdf.h). The last column gives the number of bits used in the external representation of values of the corresponding type.

NetCDF-4 Atomic Data Types

NetCDF-4 files support all of the atomic data types from netCDF-3, plus additional unsigned integer types, 64-bit integer types, and a string type.

Type	C define	Bits
byte	NC_BYTE	8
unsigned byte	NC_UBYTE^	8
char	NC_CHAR	8
short	NC_SHORT	16
unsigned short	NC_USHORT^	16
int	NC_INT	32
unsigned int	NC_UINT^	32
unsigned long long	NC_UINT64^	64
long long	NC_INT64^	64
float	NC_FLOAT	32
double	NC_DOUBLE	64
char **	NC_STRING^	string length + 1

^This type was introduced in netCDF-4, and is not supported in netCDF classic or 64-bit offset format files, or in netCDF-4 files if they are created with the NC_CLASSIC_MODEL flags.

Function Documentation

nc_def_var()

int nc_def_var	(	int	ncid,
		const char *	name,
		nc_type	xtype,
		int	ndims,
		const int *	dimidsp,
		int *	varidp
	)

Define a new variable.

This function adds a new variable to an open netCDF dataset or group. It returns (as an argument) a variable ID, given the netCDF ID, the variable name, the variable type, the number of dimensions, and a list of the dimension IDs.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
name	Variable object_name.
xtype	data_type of the variable.
ndims	Number of dimensions for the variable. For example, 2 specifies a matrix, 1 specifies a vector, and 0 means the variable is a scalar with no dimensions. Must not be negative or greater than the predefined constant NC_MAX_VAR_DIMS. In netCDF-4/HDF5 files, may not exceed the HDF5 maximum number of dimensions (32).
dimidsp	Vector of ndims dimension IDs corresponding to the variable dimensions. For classic model netCDF files, if the ID of the unlimited dimension is included, it must be first. This argument is ignored if ndims is 0. For expanded model netCDF4/HDF5 files, there may be any number of unlimited dimensions, and they may be used in any element of the dimids array.
varidp	Pointer to location for the returned variable ID.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTINDEFINE Not in define mode.

NC_ESTRICTNC3 Attempting netcdf-4 operation on strict nc3 netcdf-4 file.

NC_EMAXVARS NC_MAX_VARS exceeded [Not enforced after 4.5.0]

NC_EBADTYPE Bad type.

NC_EINVAL Invalid input.

NC_ENAMEINUSE Name already in use.

NC_EPERM Attempt to create object in read-only file.

Example

Here is an example using nc_def_var to create a variable named rh of type double with three dimensions, time, lat, and lon in a new netCDF dataset named foo.nc:

#include <netcdf.h>
...
int  status;
int  ncid;
int  lat_dim, lon_dim, time_dim;
int  rh_id;
int  rh_dimids[3];
...
status = nc_create("foo.nc", NC_NOCLOBBER, &ncid);
if (status != NC_NOERR) handle_error(status);
...
 
status = nc_def_dim(ncid, "lat", 5L, &lat_dim);
if (status != NC_NOERR) handle_error(status);
status = nc_def_dim(ncid, "lon", 10L, &lon_dim);
if (status != NC_NOERR) handle_error(status);
status = nc_def_dim(ncid, "time", NC_UNLIMITED, &time_dim);
if (status != NC_NOERR) handle_error(status);
...
 
rh_dimids[0] = time_dim;
rh_dimids[1] = lat_dim;
rh_dimids[2] = lon_dim;
status = nc_def_var (ncid, "rh", NC_DOUBLE, 3, rh_dimids, &rh_id);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Ed Hartnett, Dennis Heimbigner

Definition at line 212 of file dvar.c.

nc_def_var_chunking()

int nc_def_var_chunking	(	int	ncid,
		int	varid,
		int	storage,
		const size_t *	chunksizesp
	)

Define storage and, if chunked storage is used, chunking parameters for a variable.

The storage may be set to NC_CONTIGUOUS, NC_COMPACT, or NC_CHUNKED.

Contiguous storage means the variable is stored as one block of data in the file. This is the default storage.

Compact storage means the variable is stored in the header record of the file. This can have large performance benefits on HPC system running many processors. Compact storage is only available for variables whose data are 64 KB or less. Attempting to turn on compact storage for a variable that is too large will result in the NC_EVARSIZE error.

Chunked storage means the data are stored as chunks, of user-configurable size. Chunked storage is required for variable with one or more unlimted dimensions, or variable which use compression, or any other filter.

The total size of a chunk must be less than 4 GiB. That is, the product of all chunksizes and the size of the data (or the size of nc_vlen_t for VLEN types) must be less than 4 GiB.

This function may only be called after the variable is defined, but before nc_enddef is called. Once the chunking parameters are set for a variable, they cannot be changed.

Note

Scalar variables may have a storage of NC_CONTIGUOUS or NC_COMPACT. Attempts to set chunking on a scalare variable will cause ::NC_EINVEL to be returned. Only non-scalar variables can have chunking.

Parameters

ncid	NetCDF ID, from a previous call to nc_open() or nc_create().
varid	Variable ID.
storage	If NC_CONTIGUOUS or NC_COMPACT, then contiguous or compact storage is used for this variable. Variables with one or more unlimited dimensions cannot use contiguous or compact storage. If contiguous or compact storage is turned on, the chunksizes parameter is ignored. If NC_CHUNKED, then chunked storage is used for this variable. Chunk sizes may be specified with the chunksizes parameter or default sizes will be used if that parameter is NULL.
chunksizesp	A pointer to an array list of chunk sizes. The array must have one chunksize for each dimension of the variable. If NC_CONTIGUOUS storage is set, then the chunksizes parameter is ignored. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ID.

NC_ENOTNC4 Not a netCDF-4 file.

NC_ELATEDEF This variable has already been the subject of a nc_enddef call. In netCDF-4 files nc_enddef will be called automatically for any data read or write. Once nc_enddef has been called after the nc_def_var call for a variable, it is impossible to set the chunking for that variable.

NC_ENOTINDEFINE Not in define mode. This is returned for netCDF classic or 64-bit offset files, or for netCDF-4 files, when they wwere created with NC_CLASSIC_MODEL flag by nc_create().

NC_EPERM Attempt to create object in read-only file.

NC_EBADCHUNK Returns if the chunk size specified for a variable is larger than the length of the dimensions associated with variable.

NC_EVARSIZE Compact storage attempted for variable bigger than 64 KB.

NC_EINVAL Attempt to set contiguous or compact storage for var with one or more unlimited dimensions, or chunking for a scalar var.

Example

In this example from libsrc4/tst_vars2.c, chunksizes are set with nc_var_def_chunking, and checked with nc_var_inq_chunking.

printf("**** testing chunking...");
{
#define NDIMS5 1
#define DIM5_NAME "D5"
#define VAR_NAME5 "V5"
#define DIM5_LEN 1000
 
int dimids[NDIMS5], dimids_in[NDIMS5];
int varid;
int ndims, nvars, natts, unlimdimid;
nc_type xtype_in;
char name_in[NC_MAX_NAME + 1];
int data[DIM5_LEN], data_in[DIM5_LEN];
size_t chunksize[NDIMS5] = {5};
size_t chunksize_in[NDIMS5];
int storage_in;
int i, d;
 
for (i = 0; i < DIM5_LEN; i++)
data[i] = i;
 
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM5_NAME, DIM5_LEN, &dimids[0])) ERR;
if (nc_def_var(ncid, VAR_NAME5, NC_INT, NDIMS5, dimids, &varid)) ERR;
if (nc_def_var_chunking(ncid, varid, NC_CHUNKED, chunksize)) ERR;
if (nc_put_var_int(ncid, varid, data)) ERR;
 
if (nc_inq_var_chunking(ncid, varid, &storage_in, chunksize_in)) ERR;
for (d = 0; d < NDIMS5; d++)
if (chunksize[d] != chunksize_in[d]) ERR;
if (storage_in != NC_CHUNKED) ERR;

Author

Ed Hartnett, Dennis Heimbigner

Definition at line 622 of file dvar.c.

nc_def_var_deflate()

int nc_def_var_deflate	(	int	ncid,
		int	varid,
		int	shuffle,
		int	deflate,
		int	deflate_level
	)

Set the zlib compression and shuffle settings for a variable in an netCDF/HDF5 file.

This function must be called after nc_def_var and before nc_enddef or any functions which writes data to the file.

Deflation and shuffle are only available for HDF5 files. Attempting to set them on non-HDF5 files will return NC_ENOTNC4.

Deflation and shuffle require chunked data. If this function is called on a variable with contiguous data, then the data is changed to chunked data, with default chunksizes. Use nc_def_var_chunking() to tune performance with user-defined chunksizes.

If this function is called on a scalar variable, NC_EINVAL is returned. Only chunked variables may use filters.

Zlib compression cannot be used with szip compression. If this function is called on a variable which already has szip compression turned on, NC_EINVAL is returned.

Note

Parallel I/O reads work with compressed data. Parallel I/O writes work with compressed data in netcdf-c-4.7.4 and later releases, using hdf5-1.10.3 and later releases. Using the zlib, shuffle (or any other) filter requires that collective access be used with the variable. Turning on deflate and/or shuffle for a variable in a file opened for parallel I/O will automatically switch the access for that variable to collective access.

The HDF5 manual has this to say about shuffle:

The shuffle filter de-interlaces a block of data by reordering the bytes. All the bytes from one consistent byte position of each data element are placed together in one block; all bytes from a second consistent byte position of each data element are placed together a second block; etc. For example, given three data elements of a 4-byte datatype stored as 012301230123, shuffling will re-order data as 000111222333. This can be a valuable step in an effective compression algorithm because the bytes in each byte position are often closely related to each other and putting them together can increase the compression ratio.

As implied above, the primary value of the shuffle filter lies in its coordinated use with a compression filter; it does not provide data compression when used alone. When the shuffle filter is applied to a dataset immediately prior to the use of a compression filter, the compression ratio achieved is often superior to that achieved by the use of a compression filter without the shuffle filter.

Note

The shuffle and deflate flags are ambiguous.

In most cases, if the shuffle or deflate flag is zero, then it is interpreted to mean that shuffle or deflate should not be set. However, if the variable already has shuffle or deflate turned on, then it is unclear if a flag value of zero means leave the state as it is, or if it means that it should be turned off. Since currently no other filters can be disabled, it is assumed here that a zero value means to leave the state as it is.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
shuffle	True to turn on the shuffle filter. The shuffle filter can assist with the compression of data by changing the byte order in the data stream. It makes no sense to use the shuffle filter without setting a deflate level.
deflate	True to turn on deflation for this variable.
deflate_level	A number between 0 (no compression) and 9 (maximum compression).

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_ENOTNC4 Attempting netcdf-4 operation on file that is not netCDF-4/HDF5.

NC_ESTRICTNC3 Attempting netcdf-4 operation on strict nc3 netcdf-4 file.

NC_ELATEDEF Too late to change settings for this variable.

NC_ENOTINDEFINE Not in define mode.

NC_EPERM File is read only.

NC_ESTRICTNC3 Attempting to create netCDF-4 type var in classic model file

NC_EHDFERR Error returned by HDF5 layer.

NC_EINVAL Invalid input. Deflate can't be set unless variable storage is NC_CHUNK.

Example

Here is an example from /examples/C/simple_xy_nc4_wr.c using nc_def_var_deflate to create a variable and then turn on the shuffle filter and compression.

#include <netcdf.h>
#define NDIMS 2
#define NX 6
#define NY 12
 
int ncid, x_dimid, y_dimid, varid;
int dimids[NDIMS];
int shuffle, deflate, deflate_level;
int data_out[NX][NY];
int x, y, retval;
 
shuffle = NC_SHUFFLE;
deflate = 1;
deflate_level = 1;
...
if ((retval = nc_create(FILE_NAME, NC_NETCDF4, &ncid)))
ERR(retval);
 
if ((retval = nc_def_dim(ncid, "x", NX, &x_dimid)))
ERR(retval);
if ((retval = nc_def_dim(ncid, "y", NY, &y_dimid)))
ERR(retval);
 
dimids[0] = x_dimid;
dimids[1] = y_dimid;
 
if ((retval = nc_def_var(ncid, "data", NC_INT, NDIMS,
dimids, &varid)))
ERR(retval);
 
...
 
if ((retval = nc_def_var_deflate(ncid, varid, shuffle, deflate,
deflate_level)))
ERR(retval);
...

Author

Ed Hartnett, Dennis Heimbigner

Definition at line 456 of file dvar.c.

nc_def_var_endian()

int nc_def_var_endian	(	int	ncid,
		int	varid,
		int	endian
	)

Define endianness of a variable.

With this function the endianness (i.e. order of bits in integers) can be changed on a per-variable basis. By default, the endianness is the same as the default endianness of the platform. But with nc_def_var_endianness the endianness can be explicitly set for a variable.

Warning: this function is only defined if the type of the variable is an atomic integer or float type.

This function may only be called after the variable is defined, but before nc_enddef is called.

Parameters

ncid	NetCDF ID, from a previous call to nc_open() or nc_create().
varid	Variable ID.
endian	NC_ENDIAN_NATIVE to select the native endianness of the platform (the default), NC_ENDIAN_LITTLE to use little-endian, NC_ENDIAN_BIG to use big-endian.

Returns

NC_NOERR No error.

NC_EBADID Bad ID.

NC_ENOTNC4 Not a netCDF-4 file.

NC_ELATEDEF This variable has already been the subject of a nc_enddef call. In netCDF-4 files nc_enddef will be called automatically for any data read or write. Once nc_enddef has been called after the nc_def_var call for a variable, it is impossible to set the chunking for that variable.

NC_ENOTINDEFINE Not in define mode. This is returned for netCDF classic or 64-bit offset files, or for netCDF-4 files, when they wwere created with NC_CLASSIC_MODEL flag by nc_create().

NC_EPERM Attempt to create object in read-only file.

Example

In this example from libsrc4/tst_vars2.c, a variable is created, and the endianness set to NC_ENDIAN_BIG.

#define NDIMS4 1
#define DIM4_NAME "Joe"
#define VAR_NAME4 "Ed"
#define DIM4_LEN 10
{
int dimids[NDIMS4], dimids_in[NDIMS4];
int varid;
int ndims, nvars, natts, unlimdimid;
nc_type xtype_in;
char name_in[NC_MAX_NAME + 1];
int data[DIM4_LEN], data_in[DIM4_LEN];
int endian_in;
int i;
 
for (i = 0; i < DIM4_LEN; i++)
data[i] = i;
 
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM4_NAME, DIM4_LEN, &dimids[0])) ERR;
if (dimids[0] != 0) ERR;
if (nc_def_var(ncid, VAR_NAME4, NC_INT, NDIMS4, dimids, &varid)) ERR;
if (nc_def_var_endian(ncid, varid, NC_ENDIAN_BIG)) ERR;

Author

Ed Hartnett

Definition at line 700 of file dvar.c.

nc_def_var_fill()

int nc_def_var_fill	(	int	ncid,
		int	varid,
		int	no_fill,
		const void *	fill_value
	)

Set the fill value for a variable.

Note

For netCDF classic, 64-bit offset, and CDF5 formats, it is allowed (but not good practice) to set the fill value after data have been written to the variable. In this case, unless the variable has been completely specified (without gaps in the data), any existing filled values will not be recognized as fill values by applications reading the data. Best practice is to set the fill value after the variable has been defined, but before any data have been written to that variable. In NetCDF-4 files, this is enforced by the HDF5 library. For netCDF-4 files, an error is returned if the user attempts to set the fill value after writing data to the variable.

Parameters

ncid	NetCDF ID, from a previous call to nc_open() or nc_create().
varid	Variable ID.
no_fill	Set to NC_NOFILL to turn off fill mode for this variable. Set to NC_FILL (the default) to turn on fill mode for the variable.
fill_value	the fill value to be used for this variable. Must be the same type as the variable. This must point to enough free memory to hold one element of the data type of the variable. (For example, an NC_INT will require 4 bytes for it's fill value, which is also an NC_INT.)

Returns

NC_NOERR No error.

NC_EBADID Bad ID.

NC_ENOTINDEFINE Not in define mode. This is returned for netCDF classic, 64-bit offset, or 64-bit data files, or for netCDF-4 files, when they were created with NC_CLASSIC_MODEL flag by nc_creae().

NC_EPERM Attempt to create object in read-only file.

NC_ELATEDEF (NetCDF-4 only). Returned when user attempts to set fill value after data are written.

NC_EGLOBAL Attempt to set fill value on NC_GLOBAL.

Example

In this example from libsrc4/tst_vars.c, a variable is defined, and the fill mode turned off. Then nc_inq_fill() is used to check that the setting is correct. Then some data are written to the variable. Since the data that are written do not cover the full extent of the variable, the missing values will just be random. If fill value mode was turned on, the missing values would get the fill value.

#define DIM7_LEN 2
#define DIM7_NAME "dim_7_from_Indiana"
#define VAR7_NAME "var_7_from_Idaho"
#define NDIMS 1
int dimids[NDIMS];
size_t index[NDIMS];
int varid;
int no_fill;
unsigned short ushort_data = 42, ushort_data_in, fill_value_in;
 
if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM7_NAME, DIM7_LEN, &dimids[0])) ERR;
if (nc_def_var(ncid, VAR7_NAME, NC_USHORT, NDIMS, dimids,
&varid)) ERR;
if (nc_def_var_fill(ncid, varid, 1, NULL)) ERR;
 
if (nc_inq_var_fill(ncid, varid, &no_fill, &fill_value_in)) ERR;
if (!no_fill) ERR;
 
index[0] = 1;
if (nc_put_var1_ushort(ncid, varid, index, &ushort_data)) ERR;
 
index[0] = 0;
if (nc_get_var1_ushort(ncid, varid, index, &ushort_data_in)) ERR;
 
if (nc_close(ncid)) ERR;

Author

Glenn Davis, Ed Hartnett, Dennis Heimbigner

Definition at line 304 of file dvar.c.

nc_def_var_fletcher32()

int nc_def_var_fletcher32	(	int	ncid,
		int	varid,
		int	fletcher32
	)

Set checksum for a var.

This function must be called after nc_def_var and before nc_enddef or any functions which writes data to the file.

Checksums require chunked data. If this function is called on a variable with contiguous data, then the data is changed to chunked data, with default chunksizes. Use nc_def_var_chunking() to tune performance with user-defined chunksizes.

Note

Parallel I/O reads work with fletcher32 encoded data. Parallel I/O writes work with fletcher32 in netcdf-c-4.7.4 and later releases, using hdf5-1.10.2 and later releases. Using the fletcher32 (or any) filter requires that collective access be used with the variable. Turning on fletcher32 for a variable in a file opened for parallel I/O will automatically switch the access for that variable to collective access.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
fletcher32	True to turn on Fletcher32 checksums for this variable.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_ENOTNC4 Attempting netcdf-4 operation on file that is not netCDF-4/HDF5.

NC_ESTRICTNC3 Attempting netcdf-4 operation on strict nc3 netcdf-4 file.

NC_ELATEDEF Too late to change settings for this variable.

NC_EINVAL Invalid input

Author

Ed Hartnett, Dennis Heimbigner

Definition at line 502 of file dvar.c.

nc_def_var_szip()

int nc_def_var_szip	(	int	ncid,
		int	varid,
		int	options_mask,
		int	pixels_per_block
	)

Set szip compression settings on a variable.

Szip is an implementation of the extended-Rice lossless compression algorithm; it is reported to provide fast and effective compression. Szip is only available to netCDF if HDF5 was built with szip support.

SZIP compression cannot be applied to variables with any user-defined type.

If zlib compression has already be turned on for a variable, then this function will return NC_EINVAL.

To learn the szip settings for a variable, use nc_inq_var_szip().

Note

The options_mask parameter may be either NC_SZIP_EC (entropy coding) or NC_SZIP_NN (nearest neighbor):

• The entropy coding method is best suited for data that has been processed. The EC method works best for small numbers.
• The nearest neighbor coding method preprocesses the data then the applies EC method as above.

For more information about HDF5 and szip, see https://support.hdfgroup.org/HDF5/doc/RM/RM_H5P.html#Property-SetSzip and https://support.hdfgroup.org/doc_resource/SZIP/index.html.

Parameters

ncid	File ID.
varid	Variable ID.
options_mask	The options mask. Can be NC_SZIP_EC or NC_SZIP_NN.
pixels_per_block	Pixels per block. Must be even and not greater than 32, with typical values being 8, 10, 16, or 32. This parameter affects compression ratio; the more pixel values vary, the smaller this number should be to achieve better performance. If pixels_per_block is bigger than the total number of elements in a dataset chunk, NC_EINVAL will be returned.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_ENOTNC4 Attempting netcdf-4 operation on file that is not netCDF-4/HDF5.

NC_ELATEDEF Too late to change settings for this variable.

NC_ENOTINDEFINE Not in define mode.

NC_EINVAL Invalid input, or zlib filter already applied to this var.

Author

Ed Hartnett

Definition at line 757 of file dvar.c.

nc_free_string()

int nc_free_string	(	size_t	len,
		char **	data
	)

Free string space allocated by the library.

When you read string type the library will allocate the storage space for the data. This storage space must be freed, so pass the pointer back to this function, when you're done with the data, and it will free the string memory.

Parameters

len	The number of character arrays in the array.
data	The pointer to the data array.

Returns

NC_NOERR No error.

Author

Ed Hartnett

Definition at line 1206 of file dvar.c.

nc_get_var()

int nc_get_var	(	int	ncid,
		int	varid,
		void *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1033 of file dvarget.c.

nc_get_var1()

int nc_get_var1	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		void *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 889 of file dvarget.c.

nc_get_var1_double()

int nc_get_var1_double	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		double *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 939 of file dvarget.c.

nc_get_var1_float()

int nc_get_var1_float	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		float *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 932 of file dvarget.c.

nc_get_var1_int()

int nc_get_var1_int	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		int *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 919 of file dvarget.c.

nc_get_var1_long()

int nc_get_var1_long	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		long *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 925 of file dvarget.c.

nc_get_var1_longlong()

int nc_get_var1_longlong	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		long long *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 967 of file dvarget.c.

nc_get_var1_schar()

int nc_get_var1_schar	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		signed char *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 901 of file dvarget.c.

nc_get_var1_short()

int nc_get_var1_short	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		short *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 913 of file dvarget.c.

nc_get_var1_string()

int nc_get_var1_string	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		char **	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 981 of file dvarget.c.

nc_get_var1_text()

int nc_get_var1_text	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		char *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 895 of file dvarget.c.

nc_get_var1_ubyte()

int nc_get_var1_ubyte	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		unsigned char *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 946 of file dvarget.c.

nc_get_var1_uchar()

int nc_get_var1_uchar	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		unsigned char *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 907 of file dvarget.c.

nc_get_var1_uint()

int nc_get_var1_uint	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		unsigned int *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 960 of file dvarget.c.

nc_get_var1_ulonglong()

int nc_get_var1_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		unsigned long long *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 974 of file dvarget.c.

nc_get_var1_ushort()

int nc_get_var1_ushort	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		unsigned short *	ip
	)

Read a single datum from a variable.

Inputs are the netCDF ID, the variable ID, a multidimensional index that specifies which value to get, and the address of a location into which the data value will be read. The value is converted from the external data type of the variable, if necessary.

The nc_get_var1() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_var1_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 953 of file dvarget.c.

nc_get_var_chunk_cache()

int nc_get_var_chunk_cache	(	int	ncid,
		int	varid,
		size_t *	sizep,
		size_t *	nelemsp,
		float *	preemptionp
	)

Get the per-variable chunk cache settings from the HDF5 layer.

These settings may be changed with nc_set_var_chunk_cache().

See nc_set_chunk_cache() for a full discussion of these settings.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
sizep	The total size of the raw data chunk cache, in bytes, will be put here. Ignored if NULL.
nelemsp	The number of chunk slots in the raw data chunk cache hash table will be put here. Ignored if NULL.
preemptionp	The preemption will be put here. The preemtion value is between 0 and 1 inclusive and indicates how much chunks that have been fully read are favored for preemption. A value of zero means fully read chunks are treated no differently than other chunks (the preemption is strictly LRU) while a value of one means fully read chunks are always preempted before other chunks. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_ESTRICTNC3 Attempting netcdf-4 operation on strict nc3 netcdf-4 file.

NC_EINVAL Invalid input

Author

Ed Hartnett

Definition at line 1325 of file dvar.c.

nc_get_var_double()

int nc_get_var_double	(	int	ncid,
		int	varid,
		double *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1081 of file dvarget.c.

nc_get_var_float()

int nc_get_var_float	(	int	ncid,
		int	varid,
		float *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

pres_temp_4D_rd.c, and sfc_pres_temp_rd.c.

Definition at line 1075 of file dvarget.c.

nc_get_var_int()

int nc_get_var_int	(	int	ncid,
		int	varid,
		int *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

simple_xy_nc4_rd.c, and simple_xy_rd.c.

Definition at line 1063 of file dvarget.c.

nc_get_var_long()

int nc_get_var_long	(	int	ncid,
		int	varid,
		long *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1069 of file dvarget.c.

nc_get_var_longlong()

int nc_get_var_longlong	(	int	ncid,
		int	varid,
		long long *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1105 of file dvarget.c.

nc_get_var_schar()

int nc_get_var_schar	(	int	ncid,
		int	varid,
		signed char *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1045 of file dvarget.c.

nc_get_var_short()

int nc_get_var_short	(	int	ncid,
		int	varid,
		short *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1057 of file dvarget.c.

nc_get_var_string()

int nc_get_var_string	(	int	ncid,
		int	varid,
		char **	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1117 of file dvarget.c.

nc_get_var_text()

int nc_get_var_text	(	int	ncid,
		int	varid,
		char *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1039 of file dvarget.c.

nc_get_var_ubyte()

int nc_get_var_ubyte	(	int	ncid,
		int	varid,
		unsigned char *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1087 of file dvarget.c.

nc_get_var_uchar()

int nc_get_var_uchar	(	int	ncid,
		int	varid,
		unsigned char *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1051 of file dvarget.c.

nc_get_var_uint()

int nc_get_var_uint	(	int	ncid,
		int	varid,
		unsigned int *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1099 of file dvarget.c.

nc_get_var_ulonglong()

int nc_get_var_ulonglong	(	int	ncid,
		int	varid,
		unsigned long long *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

simple_nc4_rd.c.

Definition at line 1111 of file dvarget.c.

nc_get_var_ushort()

int nc_get_var_ushort	(	int	ncid,
		int	varid,
		unsigned short *	ip
	)

Read an entire variable in one call.

This function will read all the values from a netCDF variable of an open netCDF dataset.

This is the simplest interface to use for reading the value of a scalar variable or when all the values of a multidimensional variable can be read at once. The values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to read all the values of a record variable into an array but there are more records in the file than you assume, more data will be read than you expect, which may cause a segmentation violation. To avoid such problems, it is better to use the nc_get_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_var() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1093 of file dvarget.c.

nc_get_vara()

int nc_get_vara	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		void *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 741 of file dvarget.c.

nc_get_vara_double()

int nc_get_vara_double	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		double *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 803 of file dvarget.c.

nc_get_vara_float()

int nc_get_vara_float	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		float *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

pres_temp_4D_rd.c.

Definition at line 796 of file dvarget.c.

nc_get_vara_int()

int nc_get_vara_int	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		int *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 782 of file dvarget.c.

nc_get_vara_long()

int nc_get_vara_long	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		long *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 789 of file dvarget.c.

nc_get_vara_longlong()

int nc_get_vara_longlong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		long long *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 831 of file dvarget.c.

nc_get_vara_schar()

int nc_get_vara_schar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		signed char *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 761 of file dvarget.c.

nc_get_vara_short()

int nc_get_vara_short	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		short *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 775 of file dvarget.c.

nc_get_vara_string()

int nc_get_vara_string	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		char **	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 845 of file dvarget.c.

nc_get_vara_text()

int nc_get_vara_text	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		char *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 754 of file dvarget.c.

nc_get_vara_ubyte()

int nc_get_vara_ubyte	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		unsigned char *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 810 of file dvarget.c.

nc_get_vara_uchar()

int nc_get_vara_uchar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		unsigned char *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 768 of file dvarget.c.

nc_get_vara_uint()

int nc_get_vara_uint	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		unsigned int *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 824 of file dvarget.c.

nc_get_vara_ulonglong()

int nc_get_vara_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		unsigned long long *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 838 of file dvarget.c.

nc_get_vara_ushort()

int nc_get_vara_ushort	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		unsigned short *	ip
	)

Read an array of values from a variable.

The array to be read is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The data values are read into consecutive locations with the last dimension varying fastest. The netCDF dataset must be in data mode (for netCDF-4/HDF5 files, the switch to data mode will happen automatically, unless the classic model is used).

The nc_get_vara() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Other nc_get_vara_ functions will convert data to the desired output type as needed.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Example

Here is an example using nc_get_vara_double() to read all the values of the variable named rh from an existing netCDF dataset named foo.nc. For simplicity in this example, we assume that we know that rh is dimensioned with time, lat, and lon, and that there are three time values, five lat values, and ten lon values.

#include <netcdf.h>
   ...
#define TIMES 3
#define LATS 5
#define LONS 10
int  status;
int ncid;
int rh_id;
static size_t start[] = {0, 0, 0};
static size_t count[] = {TIMES, LATS, LONS};
double rh_vals[TIMES*LATS*LONS];
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_get_vara_double(ncid, rh_id, start, count, rh_vals);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 817 of file dvarget.c.

nc_get_varm()

int nc_get_varm	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		void *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1359 of file dvarget.c.

nc_get_varm_double()

int nc_get_varm_double	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		double *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1421 of file dvarget.c.

nc_get_varm_float()

int nc_get_varm_float	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		float *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1412 of file dvarget.c.

nc_get_varm_int()

int nc_get_varm_int	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		int *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1394 of file dvarget.c.

nc_get_varm_long()

int nc_get_varm_long	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		long *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1403 of file dvarget.c.

nc_get_varm_longlong()

int nc_get_varm_longlong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		long long *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1460 of file dvarget.c.

nc_get_varm_schar()

int nc_get_varm_schar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		signed char *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1367 of file dvarget.c.

nc_get_varm_short()

int nc_get_varm_short	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		short *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1386 of file dvarget.c.

nc_get_varm_string()

int nc_get_varm_string	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		char **	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1488 of file dvarget.c.

nc_get_varm_text()

int nc_get_varm_text	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		char *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1479 of file dvarget.c.

nc_get_varm_ubyte()

int nc_get_varm_ubyte	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		unsigned char *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1430 of file dvarget.c.

nc_get_varm_uchar()

int nc_get_varm_uchar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		unsigned char *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1377 of file dvarget.c.

nc_get_varm_uint()

int nc_get_varm_uint	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		unsigned int *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1450 of file dvarget.c.

nc_get_varm_ulonglong()

int nc_get_varm_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		unsigned long long *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1469 of file dvarget.c.

nc_get_varm_ushort()

int nc_get_varm_ushort	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		unsigned short *	ip
	)

Read a mapped array from a variable.

The nc_get_varm_ type family of functions reads a mapped array section of values from a netCDF variable of an open netCDF dataset. The mapped array section is specified by giving a corner, a vector of edge lengths, a stride vector, and an index mapping vector. The index mapping vector is a vector of integers that specifies the mapping between the dimensions of a netCDF variable and the in-memory structure of the internal data array. No assumptions are made about the ordering or length of the dimensions of the data array. The netCDF dataset must be in data mode.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_get_varm() function will only read a variable of an atomic type; it will not read user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1440 of file dvarget.c.

nc_get_vars()

int nc_get_vars	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		void *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1165 of file dvarget.c.

nc_get_vars_double()

int nc_get_vars_double	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		double *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1237 of file dvarget.c.

nc_get_vars_float()

int nc_get_vars_float	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		float *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1228 of file dvarget.c.

nc_get_vars_int()

int nc_get_vars_int	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		int *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1210 of file dvarget.c.

nc_get_vars_long()

int nc_get_vars_long	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		long *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1219 of file dvarget.c.

nc_get_vars_longlong()

int nc_get_vars_longlong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		long long *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1273 of file dvarget.c.

nc_get_vars_schar()

int nc_get_vars_schar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		signed char *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1183 of file dvarget.c.

nc_get_vars_short()

int nc_get_vars_short	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		short *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1201 of file dvarget.c.

nc_get_vars_string()

int nc_get_vars_string	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		char **	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1291 of file dvarget.c.

nc_get_vars_text()

int nc_get_vars_text	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		char *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1174 of file dvarget.c.

nc_get_vars_ubyte()

int nc_get_vars_ubyte	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		unsigned char *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1246 of file dvarget.c.

nc_get_vars_uchar()

int nc_get_vars_uchar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		unsigned char *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1192 of file dvarget.c.

nc_get_vars_uint()

int nc_get_vars_uint	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		unsigned int *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1264 of file dvarget.c.

nc_get_vars_ulonglong()

int nc_get_vars_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		unsigned long long *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1282 of file dvarget.c.

nc_get_vars_ushort()

int nc_get_vars_ushort	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		unsigned short *	ip
	)

Read a strided array from a variable.

This function reads a subsampled (strided) array section of values from a netCDF variable of an open netCDF dataset. The subsampled array section is specified by giving a corner, a vector of edge lengths, and a stride vector. The values are read with the last dimension of the netCDF variable varying fastest. The netCDF dataset must be in data mode.

The nc_get_vars() function will read a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
ip	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1255 of file dvarget.c.

nc_inq_unlimdims()

int nc_inq_unlimdims	(	int	ncid,
		int *	nunlimdimsp,
		int *	unlimdimidsp
	)

Return number and list of unlimited dimensions.

In netCDF-4 files, it's possible to have multiple unlimited dimensions. This function returns a list of the unlimited dimension ids visible in a group.

Dimensions are visible in a group if they have been defined in that group, or any ancestor group.

Parameters

ncid	NetCDF file and group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), etc.
nunlimdimsp	A pointer to an int which will get the number of visible unlimited dimensions. Ignored if NULL.
unlimdimidsp	A pointer to an already allocated array of int which will get the ids of all visible unlimited dimensions. Ignored if NULL. To allocate the correct length for this array, call nc_inq_unlimdims with a NULL for this parameter and use the nunlimdimsp parameter to get the number of visible unlimited dimensions.

Example

Here is an example from nc_test4/tst_dims.c. In this example we create a file with two unlimited dimensions, and then call nc_inq_unlimdims() to check that there are 2 unlimited dimensions, and that they have dimids 0 and 1.

     #include <netcdf.h>
        ...
#define ROMULUS "Romulus"
#define REMUS "Remus"
#define DIMS2 2
   printf("*** Testing file with two unlimited dimensions...");
   {
      int ncid, dimid[DIMS2];
      int unlimdimid_in[DIMS2];
      int nunlimdims_in;
 
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, REMUS, NC_UNLIMITED, &dimid[0])) ERR;
      if (nc_def_dim(ncid, ROMULUS, NC_UNLIMITED, &dimid[1])) ERR;
 
      ...
      if (nc_inq_unlimdims(ncid, &nunlimdims_in, unlimdimid_in)) ERR;
      if (nunlimdims_in != 2 || unlimdimid_in[0] != 0 || unlimdimid_in[1] != 1) ERR;

This function will return one of the following values.

Returns

NC_NOERR No error.

NC_EBADID Bad group id.

NC_ENOTNC4 Attempting a netCDF-4 operation on a netCDF-3 file. NetCDF-4 operations can only be performed on files defined with a create mode which includes flag HDF5. (see nc_open).

NC_ESTRICTNC3 This file was created with the strict netcdf-3 flag, therefore netcdf-4 operations are not allowed. (see nc_open).

NC_EHDFERR An error was reported by the HDF5 layer.

Author

Ed Hartnett, Dennis Heimbigner

Definition at line 642 of file dvarinq.c.

nc_inq_var()

int nc_inq_var	(	int	ncid,
		int	varid,
		char *	name,
		nc_type *	xtypep,
		int *	ndimsp,
		int *	dimidsp,
		int *	nattsp
	)

Learn about a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
name	Returned object_name of variable. Ignored if NULL.
xtypep	Pointer where typeid will be stored. Ignored if NULL.
ndimsp	Pointer where number of dimensions will be stored. Ignored if NULL.
dimidsp	Pointer where array of dimension IDs will be stored. Ignored if NULL.
nattsp	Pointer where number of attributes will be stored. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Example

Here is an example using nc_inq_var() to find out about a variable named rh in an existing netCDF dataset named foo.nc:

#include <netcdf.h>
   ...
int  status
int  ncid;
int  rh_id;
nc_type rh_type;
int rh_ndims;
int  rh_dimids[NC_MAX_VAR_DIMS];
int rh_natts
   ...
status = nc_open ("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
status = nc_inq_var (ncid, rh_id, 0, &rh_type, &rh_ndims, rh_dimids,
                     &rh_natts);
if (status != NC_NOERR) handle_error(status);

Definition at line 124 of file dvarinq.c.

nc_inq_var_chunking()

int nc_inq_var_chunking	(	int	ncid,
		int	varid,
		int *	storagep,
		size_t *	chunksizesp
	)

Get the storage and (for chunked variables) the chunksizes of a variable. See nc_def_var_chunking() for explanation of storage.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
storagep	Address of returned storage property, returned as NC_CONTIGUOUS if this variable uses contiguous storage, NC_CHUNKED if it uses chunked storage, or NC_COMPACT for compact storage. Ignored if NULL.
chunksizesp	The chunksizes will be copied here. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTNC4 Not a netCDF-4 file.

NC_ENOTVAR Invalid variable ID.

Author

Ed Hartnett

Example

   printf("**** testing contiguous storage...");
   {
#define NDIMS6 1
#define DIM6_NAME "D5"
#define VAR_NAME6 "V5"
#define DIM6_LEN 100
 
      int dimids[NDIMS6], dimids_in[NDIMS6];
      int varid;
      int ndims, nvars, natts, unlimdimid;
      nc_type xtype_in;
      char name_in[NC_MAX_NAME + 1];
      int data[DIM6_LEN], data_in[DIM6_LEN];
      size_t chunksize_in[NDIMS6];
      int storage_in;
      int i, d;
 
      for (i = 0; i < DIM6_LEN; i++)
         data[i] = i;
 
 
      if (nc_create(FILE_NAME, NC_NETCDF4, &ncid)) ERR;
      if (nc_def_dim(ncid, DIM6_NAME, DIM6_LEN, &dimids[0])) ERR;
      if (dimids[0] != 0) ERR;
      if (nc_def_var(ncid, VAR_NAME6, NC_INT, NDIMS6, dimids, &varid)) ERR;
      if (nc_def_var_chunking(ncid, varid, NC_CONTIGUOUS, NULL)) ERR;
      if (nc_put_var_int(ncid, varid, data)) ERR;
 
 
      if (nc_inq_var_chunking(ncid, 0, &storage_in, chunksize_in)) ERR;
      if (storage_in != NC_CONTIGUOUS) ERR;

Definition at line 466 of file dvarinq.c.

nc_inq_var_deflate()

int nc_inq_var_deflate	(	int	ncid,
		int	varid,
		int *	shufflep,
		int *	deflatep,
		int *	deflate_levelp
	)

Learn the shuffle and deflate settings for a variable.

Deflation is compression with the zlib library. Shuffle re-orders the data bytes to provide better compression (see nc_def_var_deflate()).

Deflation is only available for HDF5 files. For classic and other files, this function will return setting that indicate that deflation is not in use, and that the shuffle filter is not in use. That is: shuffle off, deflate off, and a deflate level of 0.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
shufflep	A 1 will be written here if the shuffle filter is turned on for this variable, and a 0 otherwise. Ignored if NULL.
deflatep	If this pointer is non-NULL, the nc_inq_var_deflate function will write a 1 if the deflate filter is turned on for this variable, and a 0 otherwise. Ignored if NULL.
deflate_levelp	If the deflate filter is in use for this variable, the deflate_level will be written here. If deflate is not in use, and deflate_levelp is provided, it will get a zero. (This behavior is expected by the Fortran APIs). Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Author

Ed Hartnett, Dennis Heimbigner

Definition at line 295 of file dvarinq.c.

nc_inq_var_endian()

int nc_inq_var_endian	(	int	ncid,
		int	varid,
		int *	endianp
	)

Find the endianness of a variable.

This is a wrapper for nc_inq_var_all().

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
endianp	Storage which will get NC_ENDIAN_LITTLE if this variable is stored in little-endian format, NC_ENDIAN_BIG if it is stored in big-endian format, and NC_ENDIAN_NATIVE if the endianness is not set, and the variable is not created yet.

Returns

NC_NOERR No error.

NC_ENOTNC4 Not a netCDF-4 file.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 552 of file dvarinq.c.

nc_inq_var_fill()

int nc_inq_var_fill	(	int	ncid,
		int	varid,
		int *	no_fill,
		void *	fill_valuep
	)

Learn the fill mode of a variable.

The fill mode of a variable is set by nc_def_var_fill().

This is a wrapper for nc_inq_var_all().

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
no_fill	Pointer to an integer which will get a 1 if no_fill mode is set for this variable. Ignored if NULL.
fill_valuep	A pointer which will get the fill value for this variable. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 502 of file dvarinq.c.

nc_inq_var_fletcher32()

int nc_inq_var_fletcher32	(	int	ncid,
		int	varid,
		int *	fletcher32p
	)

Learn the checksum settings for a variable.

This is a wrapper for nc_inq_var_all().

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
fletcher32p	Will be set to NC_FLETCHER32 if the fletcher32 checksum filter is turned on for this variable, and NC_NOCHECKSUM if it is not. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTNC4 Not a netCDF-4 file.

NC_ENOTVAR Invalid variable ID.

Definition at line 378 of file dvarinq.c.

nc_inq_var_szip()

int nc_inq_var_szip	(	int	ncid,
		int	varid,
		int *	options_maskp,
		int *	pixels_per_blockp
	)

Learn the szip settings of a variable.

This function returns the szip settings for a variable. To turn on szip compression, use nc_def_var_szip(). Szip compression is only available for netCDF/HDF5 files, and only if HDF5 was built with szip support.

If a variable is not using szip, or if this function is called on a file that is not a HDF5 file, then a zero will be passed back for both options_maskp and pixels_per_blockp.

For more information on HDF5 and szip see https://support.hdfgroup.org/HDF5/doc/RM/RM_H5P.html#Property-SetSzip and https://support.hdfgroup.org/doc_resource/SZIP/index.html.

The nc_def_var_filter function may also be used to set szip compression.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
options_maskp	The szip options mask will be copied to this pointer. Note that the HDF5 layer adds to the options_mask, so this value may be different from the value used when setting szip compression, however the bit set when setting szip compression will still be set in the options_maskp and can be checked for. If zero is returned, szip is not in use for this variable.Ignored if NULL.
pixels_per_blockp	The szip pixels per block will be copied here. The HDF5 layer may change this value, so this may not match the value passed in when setting szip compression. If zero is returned, szip is not in use for this variable. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_EFILTER Filter error.

Author

Ed Hartnett, Dennis Heimbigner

Definition at line 702 of file dvarinq.c.

nc_inq_vardimid()

int nc_inq_vardimid	(	int	ncid,
		int	varid,
		int *	dimidsp
	)

Learn the dimension IDs associated with a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
dimidsp	Pointer where array of dimension IDs will be stored. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 225 of file dvarinq.c.

nc_inq_varid()

int nc_inq_varid	(	int	ncid,
		const char *	name,
		int *	varidp
	)

Find the ID of a variable, from the name.

The function nc_inq_varid returns the ID of a netCDF variable, given its name.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
name	Name of the variable.
varidp	Pointer to location for returned variable ID. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Example

Here is an example using nc_inq_varid to find out the ID of a variable named rh in an existing netCDF dataset named foo.nc:

#include <netcdf.h>
   ...
int  status, ncid, rh_id;
   ...
status = nc_open("foo.nc", NC_NOWRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
   ...
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);

Definition at line 60 of file dvarinq.c.

nc_inq_varname()

int nc_inq_varname	(	int	ncid,
		int	varid,
		char *	name
	)

Learn the name of a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
name	Returned variable name. The caller must allocate space for the returned name. The maximum length is NC_MAX_NAME. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 156 of file dvarinq.c.

nc_inq_varnatts()

int nc_inq_varnatts	(	int	ncid,
		int	varid,
		int *	nattsp
	)

Learn how many attributes are associated with a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
nattsp	Pointer where number of attributes will be stored. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 249 of file dvarinq.c.

nc_inq_varndims()

int nc_inq_varndims	(	int	ncid,
		int	varid,
		int *	ndimsp
	)

Learn how many dimensions are associated with a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
ndimsp	Pointer where number of dimensions will be stored. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 202 of file dvarinq.c.

nc_inq_vartype()

int nc_inq_vartype	(	int	ncid,
		int	varid,
		nc_type *	typep
	)

Learn the type of a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
typep	Pointer where typeid will be stored. Ignored if NULL.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

Definition at line 178 of file dvarinq.c.

nc_put_var()

int nc_put_var	(	int	ncid,
		int	varid,
		const void *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 920 of file dvarput.c.

nc_put_var1()

int nc_put_var1	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const void *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 781 of file dvarput.c.

nc_put_var1_double()

int nc_put_var1_double	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const double *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 829 of file dvarput.c.

nc_put_var1_float()

int nc_put_var1_float	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const float *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 823 of file dvarput.c.

nc_put_var1_int()

int nc_put_var1_int	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const int *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 811 of file dvarput.c.

nc_put_var1_long()

int nc_put_var1_long	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const long *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 817 of file dvarput.c.

nc_put_var1_longlong()

int nc_put_var1_longlong	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const long long *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 853 of file dvarput.c.

nc_put_var1_schar()

int nc_put_var1_schar	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const signed char *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 793 of file dvarput.c.

nc_put_var1_short()

int nc_put_var1_short	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const short *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 805 of file dvarput.c.

nc_put_var1_string()

int nc_put_var1_string	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const char **	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 865 of file dvarput.c.

nc_put_var1_text()

int nc_put_var1_text	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const char *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 787 of file dvarput.c.

nc_put_var1_ubyte()

int nc_put_var1_ubyte	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const unsigned char *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 835 of file dvarput.c.

nc_put_var1_uchar()

int nc_put_var1_uchar	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const unsigned char *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 799 of file dvarput.c.

nc_put_var1_uint()

int nc_put_var1_uint	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const unsigned int *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 847 of file dvarput.c.

nc_put_var1_ulonglong()

int nc_put_var1_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const unsigned long long *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 859 of file dvarput.c.

nc_put_var1_ushort()

int nc_put_var1_ushort	(	int	ncid,
		int	varid,
		const size_t *	indexp,
		const unsigned short *	op
	)

Write one datum.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
indexp	Index vector with one element for each dimension.
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 841 of file dvarput.c.

nc_put_var_double()

int nc_put_var_double	(	int	ncid,
		int	varid,
		const double *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 968 of file dvarput.c.

nc_put_var_float()

int nc_put_var_float	(	int	ncid,
		int	varid,
		const float *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

pres_temp_4D_wr.c, and sfc_pres_temp_wr.c.

Definition at line 962 of file dvarput.c.

nc_put_var_int()

int nc_put_var_int	(	int	ncid,
		int	varid,
		const int *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

simple_xy_nc4_wr.c, and simple_xy_wr.c.

Definition at line 950 of file dvarput.c.

nc_put_var_long()

int nc_put_var_long	(	int	ncid,
		int	varid,
		const long *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 956 of file dvarput.c.

nc_put_var_longlong()

int nc_put_var_longlong	(	int	ncid,
		int	varid,
		const long long *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 992 of file dvarput.c.

nc_put_var_schar()

int nc_put_var_schar	(	int	ncid,
		int	varid,
		const signed char *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 932 of file dvarput.c.

nc_put_var_short()

int nc_put_var_short	(	int	ncid,
		int	varid,
		const short *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 944 of file dvarput.c.

nc_put_var_string()

int nc_put_var_string	(	int	ncid,
		int	varid,
		const char **	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1004 of file dvarput.c.

nc_put_var_text()

int nc_put_var_text	(	int	ncid,
		int	varid,
		const char *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 926 of file dvarput.c.

nc_put_var_ubyte()

int nc_put_var_ubyte	(	int	ncid,
		int	varid,
		const unsigned char *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 974 of file dvarput.c.

nc_put_var_uchar()

int nc_put_var_uchar	(	int	ncid,
		int	varid,
		const unsigned char *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 938 of file dvarput.c.

nc_put_var_uint()

int nc_put_var_uint	(	int	ncid,
		int	varid,
		const unsigned int *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 986 of file dvarput.c.

nc_put_var_ulonglong()

int nc_put_var_ulonglong	(	int	ncid,
		int	varid,
		const unsigned long long *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

simple_nc4_wr.c.

Definition at line 998 of file dvarput.c.

nc_put_var_ushort()

int nc_put_var_ushort	(	int	ncid,
		int	varid,
		const unsigned short *	op
	)

Write an entire variable with one call.

The nc_put_var_ type family of functions write all the values of a variable into a netCDF variable of an open netCDF dataset. This is the simplest interface to use for writing a value in a scalar variable or whenever all the values of a multidimensional variable can all be written at once. The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The values are converted to the external data type of the variable, if necessary.

Take care when using this function with record variables (variables that use the NC_UNLIMITED dimension). If you try to write all the values of a record variable into a netCDF file that has no record data yet (hence has 0 records), nothing will be written. Similarly, if you try to write all the values of a record variable but there are more records in the file than you assume, more in-memory data will be accessed than you supply, which may result in a segmentation violation. To avoid such problems, it is better to use the nc_put_vara interfaces for variables that use the NC_UNLIMITED dimension.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
op	Pointer from where the data will be copied.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 980 of file dvarput.c.

nc_put_vara()

int nc_put_vara	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const void *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 631 of file dvarput.c.

nc_put_vara_double()

int nc_put_vara_double	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const double *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 700 of file dvarput.c.

nc_put_vara_float()

int nc_put_vara_float	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const float *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Examples

pres_temp_4D_wr.c.

Definition at line 692 of file dvarput.c.

nc_put_vara_int()

int nc_put_vara_int	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const int *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 676 of file dvarput.c.

nc_put_vara_long()

int nc_put_vara_long	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const long *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 684 of file dvarput.c.

nc_put_vara_longlong()

int nc_put_vara_longlong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const long long *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 732 of file dvarput.c.

nc_put_vara_schar()

int nc_put_vara_schar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const signed char *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 652 of file dvarput.c.

nc_put_vara_short()

int nc_put_vara_short	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const short *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 668 of file dvarput.c.

nc_put_vara_string()

int nc_put_vara_string	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const char **	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 748 of file dvarput.c.

nc_put_vara_text()

int nc_put_vara_text	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const char *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 644 of file dvarput.c.

nc_put_vara_ubyte()

int nc_put_vara_ubyte	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const unsigned char *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 708 of file dvarput.c.

nc_put_vara_uchar()

int nc_put_vara_uchar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const unsigned char *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 660 of file dvarput.c.

nc_put_vara_uint()

int nc_put_vara_uint	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const unsigned int *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 724 of file dvarput.c.

nc_put_vara_ulonglong()

int nc_put_vara_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const unsigned long long *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 740 of file dvarput.c.

nc_put_vara_ushort()

int nc_put_vara_ushort	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const unsigned short *	op
	)

Write an array of values to a variable.

The values to be written are associated with the netCDF variable by assuming that the last dimension of the netCDF variable varies fastest in the C interface. The netCDF dataset must be in data mode. The array to be written is specified by giving a corner and a vector of edge lengths to Specify a Hyperslab.

The functions for types ubyte, ushort, uint, longlong, ulonglong, and string are only available for netCDF-4/HDF5 files.

The nc_put_var() function will write a variable of any type, including user defined type. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 716 of file dvarput.c.

nc_put_varm()

int nc_put_varm	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const void *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1235 of file dvarput.c.

nc_put_varm_double()

int nc_put_varm_double	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const double *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1312 of file dvarput.c.

nc_put_varm_float()

int nc_put_varm_float	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const float *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1302 of file dvarput.c.

nc_put_varm_int()

int nc_put_varm_int	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const int *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1282 of file dvarput.c.

nc_put_varm_long()

int nc_put_varm_long	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const long *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1292 of file dvarput.c.

nc_put_varm_longlong()

int nc_put_varm_longlong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const long long *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1352 of file dvarput.c.

nc_put_varm_schar()

int nc_put_varm_schar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const signed char *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1252 of file dvarput.c.

nc_put_varm_short()

int nc_put_varm_short	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const short *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1272 of file dvarput.c.

nc_put_varm_string()

int nc_put_varm_string	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const char **	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1372 of file dvarput.c.

nc_put_varm_text()

int nc_put_varm_text	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const char *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1243 of file dvarput.c.

nc_put_varm_ubyte()

int nc_put_varm_ubyte	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const unsigned char *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1322 of file dvarput.c.

nc_put_varm_uchar()

int nc_put_varm_uchar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const unsigned char *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1262 of file dvarput.c.

nc_put_varm_uint()

int nc_put_varm_uint	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const unsigned int *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1342 of file dvarput.c.

nc_put_varm_ulonglong()

int nc_put_varm_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const unsigned long long *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1362 of file dvarput.c.

nc_put_varm_ushort()

int nc_put_varm_ushort	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const ptrdiff_t *	imapp,
		const unsigned short *	op
	)

Write a mapped array of values to a variable.

The nc_put_varm() function will only write a variable of an atomic type; it will not write user defined types. For this function, the type of the data in memory must match the type of the variable - no data conversion is done.

Deprecated:

Use of this family of functions is discouraged, although it will continue to be supported. The reason is the complexity of the algorithm makes its use difficult for users to properly use.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
imapp	Mapping vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1332 of file dvarput.c.

nc_put_vars()

int nc_put_vars	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const void *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1043 of file dvarput.c.

nc_put_vars_double()

int nc_put_vars_double	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const double *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1119 of file dvarput.c.

nc_put_vars_float()

int nc_put_vars_float	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const float *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1109 of file dvarput.c.

nc_put_vars_int()

int nc_put_vars_int	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const int *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1089 of file dvarput.c.

nc_put_vars_long()

int nc_put_vars_long	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const long *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1099 of file dvarput.c.

nc_put_vars_longlong()

int nc_put_vars_longlong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const long long *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1159 of file dvarput.c.

nc_put_vars_schar()

int nc_put_vars_schar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const signed char *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1060 of file dvarput.c.

nc_put_vars_short()

int nc_put_vars_short	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const short *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1079 of file dvarput.c.

nc_put_vars_string()

int nc_put_vars_string	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const char **	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1179 of file dvarput.c.

nc_put_vars_text()

int nc_put_vars_text	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const char *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1051 of file dvarput.c.

nc_put_vars_ubyte()

int nc_put_vars_ubyte	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const unsigned char *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1129 of file dvarput.c.

nc_put_vars_uchar()

int nc_put_vars_uchar	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const unsigned char *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1069 of file dvarput.c.

nc_put_vars_uint()

int nc_put_vars_uint	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const unsigned int *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1149 of file dvarput.c.

nc_put_vars_ulonglong()

int nc_put_vars_ulonglong	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const unsigned long long *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1169 of file dvarput.c.

nc_put_vars_ushort()

int nc_put_vars_ushort	(	int	ncid,
		int	varid,
		const size_t *	startp,
		const size_t *	countp,
		const ptrdiff_t *	stridep,
		const unsigned short *	op
	)

Write a strided array of values to a variable.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
startp	Start vector with one element for each dimension to Specify a Hyperslab.
countp	Count vector with one element for each dimension to Specify a Hyperslab.
stridep	Stride vector with one element for each dimension to Specify a Hyperslab.
op	Pointer where the data will be copied. Memory must be allocated by the user before this function is called.

Returns

NC_NOERR No error.

NC_ENOTVAR Variable not found.

NC_EINVALCOORDS Index exceeds dimension bound.

NC_EEDGE Start+count exceeds dimension bound.

NC_ERANGE One or more of the values are out of range.

NC_EINDEFINE Operation not allowed in define mode.

NC_EBADID Bad ncid.

Author

Glenn Davis, Russ Rew, Ed Hartnett, Dennis Heimbigner, Ward Fisher

Definition at line 1139 of file dvarput.c.

nc_rename_var()

int nc_rename_var	(	int	ncid,
		int	varid,
		const char *	name
	)

Rename a variable.

This function changes the name of a netCDF variable in an open netCDF file or group. You cannot rename a variable to have the name of any existing variable.

For classic format, 64-bit offset format, and netCDF-4/HDF5 with classic mode, if the new name is longer than the old name, the netCDF dataset must be in define mode.

For netCDF-4/HDF5 files, renaming the variable changes the order of the variables in the file. The renamed variable becomes the last variable in the file.

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
name	New name of the variable.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_EBADNAME Bad name.

NC_EMAXNAME Name is too long.

NC_ENAMEINUSE Name in use.

NC_ENOMEM Out of memory.

Example

Here is an example using nc_rename_var to rename the variable rh to rel_hum in an existing netCDF dataset named foo.nc:

#include <netcdf.h>
...
int  status;
int  ncid;
int  rh_id;
...
status = nc_open("foo.nc", NC_WRITE, &ncid);
if (status != NC_NOERR) handle_error(status);
...
status = nc_redef(ncid);
if (status != NC_NOERR) handle_error(status);
status = nc_inq_varid (ncid, "rh", &rh_id);
if (status != NC_NOERR) handle_error(status);
status = nc_rename_var (ncid, rh_id, "rel_hum");
if (status != NC_NOERR) handle_error(status);
status = nc_enddef(ncid);
if (status != NC_NOERR) handle_error(status);

Author

Glenn Davis, Ed Hartnett, Dennis Heimbigner

Definition at line 839 of file dvar.c.

nc_set_var_chunk_cache()

int nc_set_var_chunk_cache	(	int	ncid,
		int	varid,
		size_t	size,
		size_t	nelems,
		float	preemption
	)

Change the cache settings for a chunked variable.

This function allows users to control the amount of memory used in the per-variable chunk cache at the HDF5 level. Changing the chunk cache only has effect until the file is closed. Once re-opened, the variable chunk cache returns to its default value.

Current cache settings for each var may be obtained with nc_get_var_chunk_cache().

Default values for these settings may be changed for the whole file with nc_set_chunk_cache().

Parameters

ncid	NetCDF or group ID, from a previous call to nc_open(), nc_create(), nc_def_grp(), or associated inquiry functions such as nc_inq_ncid().
varid	Variable ID
size	The total size of the raw data chunk cache, in bytes.
nelems	The number of chunk slots in the raw data chunk cache.
preemption	The preemption, a value between 0 and 1 inclusive that indicates how much chunks that have been fully read are favored for preemption. A value of zero means fully read chunks are treated no differently than other chunks (the preemption is strictly LRU) while a value of one means fully read chunks are always preempted before other chunks.

Returns

NC_NOERR No error.

NC_EBADID Bad ncid.

NC_ENOTVAR Invalid variable ID.

NC_ESTRICTNC3 Attempting netcdf-4 operation on strict nc3 netcdf-4 file.

NC_EINVAL Invalid input

Example

In this example from nc_test4/tst_coords.c, a variable is defined, and the chunk cache settings are changed for that variable.

printf("**** testing setting cache values for coordinate variables...");
{
#define RANK_1 1
#define DIM0_NAME "d0"
#define CACHE_SIZE 1000000
#define CACHE_NELEMS 1009
#define CACHE_PREEMPTION .90
 
int ncid, dimid, varid;
char name_in[NC_MAX_NAME + 1];
 
if (nc_create(FILE_NAME, NC_CLASSIC_MODEL|NC_NETCDF4, &ncid)) ERR;
if (nc_def_dim(ncid, DIM0_NAME, NC_UNLIMITED, &dimid)) ERR;
if (nc_def_var(ncid, DIM0_NAME, NC_DOUBLE, 1, &dimid, &varid)) ERR;
if (nc_set_var_chunk_cache(ncid, varid, CACHE_SIZE, CACHE_NELEMS, CACHE_PREEMPTION)) ERR;
if (nc_close(ncid)) ERR;
 
...
}
SUMMARIZE_ERR;

Author

Ed Hartnett

Definition at line 1284 of file dvar.c.