Package ucar.nc2.grib.grib1

Class Grib1SectionGridDefinition

java.lang.Object

ucar.nc2.grib.grib1.Grib1SectionGridDefinition

public class Grib1SectionGridDefinition
extends Object

The Grid Definition Section for GRIB-1 files Effectively immutable, but caching lazy gds

Constructor Summary

Constructors

Constructor	Description
Grib1SectionGridDefinition(byte[] rawData)	Set Grib Definition section from byte array.
Grib1SectionGridDefinition(Grib1SectionProductDefinition pds)
Grib1SectionGridDefinition(RandomAccessFile raf)	Read Grib Definition section from raf.

Method Summary

Modifier and Type	Method	Description
long	calcCRC()	Calculate the CRC of the entire byte array
Grib1Gds	getGDS()
int	getGridTemplate()	Get Grid Template number (code table 6)
int	getLength()
long	getOffset()
int	getPredefinedGridDefinition()	From pds.getGridDefinition
byte[]	getRawBytes()	get the raw bytes of the GDS
boolean	hasVerticalCoordinateParameters()
boolean	isThin()	is a "thin" grid
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

Grib1SectionGridDefinition

public Grib1SectionGridDefinition(RandomAccessFile raf)
                           throws IOException

Read Grib Definition section from raf.

Parameters:

raf - RandomAccessFile, with pointer at start of section

Throws:

IOException - on I/O error

IllegalArgumentException - if not a GRIB-2 record

Grib1SectionGridDefinition

public Grib1SectionGridDefinition(byte[] rawData)

Set Grib Definition section from byte array.

Parameters:

rawData - the byte array

Grib1SectionGridDefinition

public Grib1SectionGridDefinition(Grib1SectionProductDefinition pds)

Method Detail

getRawBytes

public byte[] getRawBytes()

get the raw bytes of the GDS

Returns:

GDS as byte[]

calcCRC

public long calcCRC()

Calculate the CRC of the entire byte array

Returns:

CRC of the entire byte array

getLength

public int getLength()

getOffset

public long getOffset()

getGridTemplate

public int getGridTemplate()

Get Grid Template number (code table 6)

Returns:

Grid Template number.

getPredefinedGridDefinition

public int getPredefinedGridDefinition()

From pds.getGridDefinition

Returns:

pds.getGridDefinition, or -1 if uses a real Grib1SectionGridDefinition

getGDS

public Grib1Gds getGDS()

isThin

public final boolean isThin()

is a "thin" grid

Returns:

if a thin grid

hasVerticalCoordinateParameters

public boolean hasVerticalCoordinateParameters()

toString

public String toString()

Overrides:

toString in class Object