org.esa.snap.core.datamodel

Class GeoApproximation

java.lang.Object

org.esa.snap.core.datamodel.GeoApproximation

public final class GeoApproximation
extends Object

Approximates the x(lat, lon) and y(lat, lon) functions.

This class does not belong to the public API.

Method Summary

Modifier and Type	Method and Description
static GeoApproximation[]	createApproximations(javax.media.jai.PlanarImage lonImage, javax.media.jai.PlanarImage latImage, javax.media.jai.PlanarImage maskImage, double accuracy)
double	getDistance(double lat, double lon) Returns the distance (in radian) of 'the center of this approximation' to a given (lat, lon) point.
RationalFunctionModel	getFX() Returns the (approximation to) the x(lat, lon) function.
RationalFunctionModel	getFY() Returns the (approximation to) the y(lat, lon) function.
double	getMaxDistance() Returns the maximum distance (in radian) within which this approximation is valid.
Rectangle	getRange() Returns the range of the x(lat, lon) and y(lat, lon) functions.
Rotator	getRotator() Returns the Rotator associated with this approximation.

Methods inherited from class java.lang.Object

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

Method Detail

createApproximations

public static GeoApproximation[] createApproximations(javax.media.jai.PlanarImage lonImage,
                                                      javax.media.jai.PlanarImage latImage,
                                                      javax.media.jai.PlanarImage maskImage,
                                                      double accuracy)

getFX

public RationalFunctionModel getFX()

Returns the (approximation to) the x(lat, lon) function.

Returns:

the (approximation to) the x(lat, lon) function.

getFY

public RationalFunctionModel getFY()

Returns the (approximation to) the y(lat, lon) function.

Returns:

the (approximation to) the y(lat, lon) function.

getMaxDistance

public double getMaxDistance()

Returns the maximum distance (in radian) within which this approximation is valid.

Returns:

the maximum distance (in radian).

getDistance

public double getDistance(double lat,
                          double lon)

Returns the distance (in radian) of 'the center of this approximation' to a given (lat, lon) point.

Parameters:

lat - The latitude.

lon - The longitude.

Returns:

the distance (in radian).

getRotator

public Rotator getRotator()

Returns the Rotator associated with this approximation.

Returns:

the Rotator associated with this approximation.

getRange

public Rectangle getRange()

Returns the range of the x(lat, lon) and y(lat, lon) functions.

Returns:

the range of the x(lat, lon) and y(lat, lon) functions.