Package noaa.coastwatch.util.trans

Class GeoVectorProjection

java.lang.Object

noaa.coastwatch.util.MetadataContainer

noaa.coastwatch.util.trans.EarthTransform

noaa.coastwatch.util.trans.EarthTransform2D

noaa.coastwatch.util.trans.GeoVectorProjection

All Implemented Interfaces:

Cloneable

public class GeoVectorProjection
extends EarthTransform2D

The GeoVectorProjection class uses arrays of latitude and longitude data to transform coordinates. It is assumed that the projection may be described by two 1D arrays: one for latitude and one for longitude. Each row in data coordinates has all the same latitude, and each column has all the same longitude or vice-versa. Since the projection is based on discrete data values, it is similar to swath in that the transformation of data coordinates outside the data dimensions returns invalid Earth locations.

Since:

3.2.0

Author:

Peter Hollemans

Field Summary

Fields

Modifier and Type	Field	Description
static final String	DESCRIPTION	Projection description string.

Fields inherited from class noaa.coastwatch.util.trans.EarthTransform

boundaryHandler, dims

Constructor Summary

Constructors

Constructor	Description
GeoVectorProjection(double[] latArray, double[] lonArray, int latLocIndex, int lonLocIndex)	Constructs a new projection.

Method Summary

Modifier and Type	Method	Description
String	describe()	Gets a string describing the earth transform type.
boolean	equals(Object obj)
protected void	transformImpl(DataLocation dataLoc, EarthLocation earthLoc)	Implements the data to geographic transform.
protected void	transformImpl(EarthLocation earthLoc, DataLocation dataLoc)	Implements the geographic to data transform.

Methods inherited from class noaa.coastwatch.util.trans.EarthTransform2D

get2DVersion, getBoundingBox, getWorldAxes, isOrientable, main, setPointTransform, transformToPoint

Methods inherited from class noaa.coastwatch.util.trans.EarthTransform

clone, closest, distance, getBoundaryHandler, getDatum, getDimensions, getResolution, getSpheroid, getSpheroid, getSubset, isInvertible, transform, transform, transform, transform

Methods inherited from class noaa.coastwatch.util.MetadataContainer

getMetadataMap

Methods inherited from class java.lang.Object

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

Field Details

DESCRIPTION

public static final String DESCRIPTION

Projection description string.

See Also:

• Constant Field Values

Constructor Details

GeoVectorProjection

public GeoVectorProjection(double[] latArray,
 double[] lonArray,
 int latLocIndex,
 int lonLocIndex)

Constructs a new projection.

Parameters:

latArray - the array of latitude locations in degrees (should be monotonic).

lonArray - the array of longitude locations in degrees (should be monotonic).

latLocIndex - the data location index associated with latitude.

lonLocIndex - the data location index associated with longitude.

Method Details

describe

public String describe()

Description copied from class: EarthTransform

Gets a string describing the earth transform type.

Specified by:

describe in class EarthTransform

transformImpl

protected void transformImpl(EarthLocation earthLoc,
 DataLocation dataLoc)

Description copied from class: EarthTransform

Implements the geographic to data transform.

Specified by:

transformImpl in class EarthTransform

See Also:

• EarthTransform.transform(EarthLocation,DataLocation)

transformImpl

protected void transformImpl(DataLocation dataLoc,
 EarthLocation earthLoc)

Description copied from class: EarthTransform

Implements the data to geographic transform.

Specified by:

transformImpl in class EarthTransform

See Also:

• EarthTransform.transform(DataLocation,EarthLocation)

equals

public boolean equals(Object obj)

Overrides:

equals in class Object