visad.georef

Class TrivialMapProjection

java.lang.Object

visad.CoordinateSystem

visad.georef.NavigatedCoordinateSystem

visad.georef.MapProjection

visad.georef.TrivialMapProjection

All Implemented Interfaces:

Serializable

public class TrivialMapProjection
extends MapProjection

A trivial implementation for a MapProjection which provides an identity coordinate system with a default bounding box. This is useful for defining an area in LatLon or LonLat space with a bounding box. What goes in, comes right back out.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
TrivialMapProjection() Create a MapProjection that just returns the input tuple.
TrivialMapProjection(RealTupleType reference) Create a MapProjection that just returns the input tuple.
TrivialMapProjection(RealTupleType type, Rectangle2D bounds) Create a MapProjection that just returns the input tuple.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object o) See if the object in question is equal to this CoordinateSystem.
double[][]	fromReference(double[][] refTuple) Transform from the reference coordinates
float[][]	fromReference(float[][] refTuple) Transform from the reference coordinates
Rectangle2D	getDefaultMapArea() Get a reasonable bounding box in this coordinate system.
double[][]	toReference(double[][] tuple) Transform to the reference coordinates
float[][]	toReference(float[][] tuple) Transform to the reference coordinates

Methods inherited from class visad.georef.MapProjection

getCenterLatLon, getLatLon, getXIndex, getYIndex, isLatLonOrder, isXYOrder, toString

Methods inherited from class visad.georef.NavigatedCoordinateSystem

getLatitudeIndex, getLongitudeIndex

Methods inherited from class visad.CoordinateSystem

canConvert, fromReference, fromReference, getCoordinateSystemUnits, getDimension, getReference, getReferenceUnits, toReference, toReference, transformCoordinates, transformCoordinates, transformCoordinates, transformCoordinates, transformCoordinatesFreeUnits, transformCoordinatesFreeUnits

Methods inherited from class java.lang.Object

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

Constructor Detail

TrivialMapProjection

public TrivialMapProjection()
                     throws VisADException

Create a MapProjection that just returns the input tuple. Default Map area is set to be from (-180,-90) to (180, 90)

Throws:

VisADException - reference does not contain Latitude/Longitude or couldn't create the necessary VisAD object

TrivialMapProjection

public TrivialMapProjection(RealTupleType reference)
                     throws VisADException

Create a MapProjection that just returns the input tuple.

Parameters:

reference - reference RealTupleType

Throws:

VisADException - reference does not contain Latitude/Longitude or couldn't create the necessary VisAD object

TrivialMapProjection

public TrivialMapProjection(RealTupleType type,
                            Rectangle2D bounds)
                     throws VisADException

Create a MapProjection that just returns the input tuple.

Parameters:

type - reference RealTupleType

bounds - rectangle bounds

Throws:

VisADException - reference does not contain Latitude/Longitude or couldn't create the necessary VisAD object

Method Detail

toReference

public double[][] toReference(double[][] tuple)
                       throws VisADException

Transform to the reference coordinates

Specified by:

toReference in class CoordinateSystem

Parameters:

tuple - array of values

Returns:

input array

Throws:

VisADException - tuple is null or wrong dimension

fromReference

public double[][] fromReference(double[][] refTuple)
                         throws VisADException

Transform from the reference coordinates

Specified by:

fromReference in class CoordinateSystem

Parameters:

refTuple - array of values

Returns:

input array

Throws:

VisADException - tuple is null or wrong dimension

toReference

public float[][] toReference(float[][] tuple)
                      throws VisADException

Transform to the reference coordinates

Overrides:

toReference in class CoordinateSystem

Parameters:

tuple - array of values

Returns:

input array

Throws:

VisADException - tuple is null or wrong dimension

fromReference

public float[][] fromReference(float[][] refTuple)
                        throws VisADException

Transform from the reference coordinates

Overrides:

fromReference in class CoordinateSystem

Parameters:

refTuple - array of values

Returns:

input array

Throws:

VisADException - tuple is null or wrong dimension

equals

public boolean equals(Object o)

See if the object in question is equal to this CoordinateSystem. The two objects are equal if they are the same object or if they are both TrivialMapProjection and have the same dimension.

Specified by:

equals in class CoordinateSystem

Parameters:

o - Object in question

Returns:

true if they are considered equal, otherwise false.

getDefaultMapArea

public Rectangle2D getDefaultMapArea()

Get a reasonable bounding box in this coordinate system. MapProjections are typically specific to an area of the world; there's no bounding box that works for all projections so each subclass must implement this method. For example, the bounding box for a satellite image MapProjection might have an upper left corner of (0,0) and the width and height of the Rectangle2D would be the number of elements and lines, respectively.

Specified by:

getDefaultMapArea in class MapProjection

Returns:

the bounding box of the MapProjection