visad.jmet
Class AlbersCoordinateSystem

java.lang.Object
  visad.CoordinateSystem
      visad.jmet.AlbersCoordinateSystem

All Implemented Interfaces:

Serializable

public class AlbersCoordinateSystem
extends CoordinateSystem

See Also:

Serialized Form

Constructor Summary

AlbersCoordinateSystem(double la0, double lo0, double p1, double p2, double false_easting, double false_northing)
Albers Equal Area projection

Method Summary

boolean	equals(Object cs) determine if the Coordinate System in question is an AlbersCoordinateSystem
double[][]	fromReference(double[][] tuples) convert from lat,lon to x,y
static void	main(String[] args)
double[][]	toReference(double[][] tuples) convert from x,y to lat,lon

Methods inherited from class visad.CoordinateSystem

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

Methods inherited from class java.lang.Object

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

Constructor Detail

AlbersCoordinateSystem

public AlbersCoordinateSystem(double la0,
                              double lo0,
                              double p1,
                              double p2,
                              double false_easting,
                              double false_northing)
                       throws VisADException

Albers Equal Area projection

Parameters:

la0 - is the latitude of the origin (deg)

lo0 - is the longitude of the origin (deg)

p1 - is latitude of the first parallel (deg)

p2 - is latitude of the second parallel (deg)

false_easting - is the value added to the x map coordinate so that x is returned positive (m) -- may be zero...

false_northing - is the value added to the y map coordinate so that y is returned positive (m) -- may be zero... equations taken from

Throws:

VisADException

Method Detail

toReference

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

convert from x,y to lat,lon

Specified by:

toReference in class CoordinateSystem

Parameters:

tuples - contains the x,y coordinates (grid col, row)

Returns:

tuple of (lat,lon);

Throws:

VisADException - if problem with conversion.

fromReference

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

convert from lat,lon to x,y

Specified by:

fromReference in class CoordinateSystem

Parameters:

tuples - contains the lat,lon coordinates

Returns:

array of double values in CoordinateSystem Units.

Throws:

VisADException - if problem with conversion.

equals

public boolean equals(Object cs)

determine if the Coordinate System in question is an AlbersCoordinateSystem

Specified by:

equals in class CoordinateSystem

Parameters:

cs - the object in question.

Returns:

true if and only if this instance equals cs.

main

public static void main(String[] args)