ucar.unidata.data.grid

Class GridCoverageAdapter

java.lang.Object

ucar.unidata.data.grid.GridCoverageAdapter

public class GridCoverageAdapter
extends java.lang.Object

Adapt a ucar.unidata.GeoGrid into VisAD Data object(s). GeoGridAdapter gets a Geogrid and has methods to create a a VisAD 2D or 3D FlatField, or sequence of same, from the GeoGrid for parameter names and time(s) desired.

Author:

Don Murray

Field Summary

Fields

Modifier and Type	Field and Description
java.lang.String	cacheFile cache file

Constructor Summary

Constructors

Constructor and Description
GridCoverageAdapter(GridCoverageDataSource dataSource, ucar.nc2.ft2.coverage.Coverage geoGrid, ucar.nc2.ft2.coverage.SubsetParams params) Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.
GridCoverageAdapter(GridCoverageDataSource dataSource, ucar.nc2.ft2.coverage.Coverage geoGrid, ucar.nc2.ft2.coverage.SubsetParams params, ucar.nc2.NetcdfFile ncFile) Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.
GridCoverageAdapter(GridCoverageDataSource dataSource, ucar.nc2.ft2.coverage.Coverage geoGrid, ucar.nc2.ft2.coverage.SubsetParams params, java.lang.String paramName) Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.
GridCoverageAdapter(GridCoverageDataSource dataSource, ucar.nc2.ft2.coverage.Coverage geoGrid, ucar.nc2.ft2.coverage.SubsetParams params, java.lang.String paramName, ucar.nc2.NetcdfFile ncFile) Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.
GridCoverageAdapter(GridCoverageDataSource dataSource, ucar.nc2.ft2.coverage.Coverage geoGrid, ucar.nc2.ft2.coverage.SubsetParams params, java.lang.String paramName, ucar.nc2.NetcdfFile ncFile, java.lang.Object extraCacheKey) Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Method Summary

Modifier and Type	Method and Description
visad.FieldImpl	getData() Get all the data from this GeoGrid.
protected ucar.nc2.ft2.coverage.Coverage	getGeoGrid() Get the geogrid that this adapter uses
protected java.util.List	getLevels() Create the list of levels for this grid
visad.FieldImpl	getSequence() Get a time ordered sequence of 2D flat fields
visad.FieldImpl	getSequence(int[] timeIndices) Get a time ordered sequence of 2D flat fields
visad.FieldImpl	getSequence(int[] timeIndices, int[] memberIndices, java.lang.Object loadId) Get a time ordered sequence of 2D flat fields
visad.FieldImpl	getSequence(int[] timeIndices, java.lang.Object loadId) Get a time ordered sequence of 2D flat fields
int	indexOf(java.lang.Object o, java.util.List levels)
static boolean	isZAxisOk(ucar.nc2.dataset.CoordinateAxis1D zaxis) Utility to check if we should ignore the given z axis
static boolean	isZUnitOk(visad.Unit zUnit, ucar.unidata.geoloc.vertical.VerticalTransform vt) Utility to check if we can handle the vertical transform

Methods inherited from class java.lang.Object

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

Field Detail

cacheFile

public java.lang.String cacheFile

cache file

Constructor Detail

GridCoverageAdapter

public GridCoverageAdapter(GridCoverageDataSource dataSource,
                           ucar.nc2.ft2.coverage.Coverage geoGrid,
                           ucar.nc2.ft2.coverage.SubsetParams params)
                    throws visad.VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

params - subset parameter

Throws:

visad.VisADException - unable to create one of the VisAD objects

GridCoverageAdapter

public GridCoverageAdapter(GridCoverageDataSource dataSource,
                           ucar.nc2.ft2.coverage.Coverage geoGrid,
                           ucar.nc2.ft2.coverage.SubsetParams params,
                           java.lang.String paramName)
                    throws visad.VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

params - the subset parameter

paramName - name of the parameter

Throws:

visad.VisADException - unable to create one of the VisAD objects

GridCoverageAdapter

public GridCoverageAdapter(GridCoverageDataSource dataSource,
                           ucar.nc2.ft2.coverage.Coverage geoGrid,
                           ucar.nc2.ft2.coverage.SubsetParams params,
                           ucar.nc2.NetcdfFile ncFile)
                    throws visad.VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

ncFile - file that the GeoGrid data is coming from

params - the subset parameter

Throws:

visad.VisADException - unable to create one of the VisAD objects

GridCoverageAdapter

public GridCoverageAdapter(GridCoverageDataSource dataSource,
                           ucar.nc2.ft2.coverage.Coverage geoGrid,
                           ucar.nc2.ft2.coverage.SubsetParams params,
                           java.lang.String paramName,
                           ucar.nc2.NetcdfFile ncFile)
                    throws visad.VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

paramName - name of the parameter

params - the subset parameter

ncFile - file that the GeoGrid data is coming from

Throws:

visad.VisADException - unable to create one of the VisAD objects

GridCoverageAdapter

public GridCoverageAdapter(GridCoverageDataSource dataSource,
                           ucar.nc2.ft2.coverage.Coverage geoGrid,
                           ucar.nc2.ft2.coverage.SubsetParams params,
                           java.lang.String paramName,
                           ucar.nc2.NetcdfFile ncFile,
                           java.lang.Object extraCacheKey)
                    throws visad.VisADException

Construct a GeoGridAdapter that will take a GeoGrid and return VisAD Data objects from it.

Parameters:

dataSource - source of this GeoGrid

geoGrid - the GeoGrid in question

params - the subset parameter

paramName - name of the parameter

ncFile - file that the GeoGrid data is coming from

extraCacheKey - Extra key to use when caching

Throws:

visad.VisADException - unable to create one of the VisAD objects

Method Detail

isZAxisOk

public static boolean isZAxisOk(ucar.nc2.dataset.CoordinateAxis1D zaxis)

Utility to check if we should ignore the given z axis

Parameters:

zaxis - given z axis

Returns:

Is ok

isZUnitOk

public static boolean isZUnitOk(visad.Unit zUnit,
                                ucar.unidata.geoloc.vertical.VerticalTransform vt)

Utility to check if we can handle the vertical transform

Parameters:

zUnit - zUnit

vt - vertical transform

Returns:

true if we can

getLevels

protected java.util.List getLevels()
                            throws visad.VisADException

Create the list of levels for this grid

Returns:

List of levels as Real-s

Throws:

visad.VisADException - On badness

getGeoGrid

protected ucar.nc2.ft2.coverage.Coverage getGeoGrid()

Get the geogrid that this adapter uses

Returns:

the GeoGrid or null

getSequence

public visad.FieldImpl getSequence()

Get a time ordered sequence of 2D flat fields

Returns:

data for all the times for a particular 2D field

getSequence

public visad.FieldImpl getSequence(int[] timeIndices)

Get a time ordered sequence of 2D flat fields

Parameters:

timeIndices - indices of times in the data

Returns:

data for all the times for a particular 2D field

getSequence

public visad.FieldImpl getSequence(int[] timeIndices,
                                   java.lang.Object loadId)

Get a time ordered sequence of 2D flat fields

Parameters:

timeIndices - indices of times in the data

loadId - loadId

Returns:

data for all the times for a particular 2D field

getSequence

public visad.FieldImpl getSequence(int[] timeIndices,
                                   int[] memberIndices,
                                   java.lang.Object loadId)

Get a time ordered sequence of 2D flat fields

Parameters:

timeIndices - indices of times in the data

memberIndices - the member indices

loadId - loadId

Returns:

data for all the times for a particular 2D field

getData

public visad.FieldImpl getData()
                        throws visad.VisADException

Get all the data from this GeoGrid.

Returns:

VisAD representation of this GeoGrid

Throws:

visad.VisADException - problem creating the grid

indexOf

public int indexOf(java.lang.Object o,
                   java.util.List levels)
            throws visad.VisADException

Throws:

visad.VisADException