skyview.geometry.distorter
Class DSSDistorter.DSSInvDistorter

java.lang.Object
  skyview.geometry.Transformer
      skyview.geometry.Distorter
          skyview.geometry.distorter.DSSDistorter.DSSInvDistorter

All Implemented Interfaces:

java.io.Serializable, Component

Enclosing class:

DSSDistorter

public class DSSDistorter.DSSInvDistorter
extends Distorter

This inner class is the inverse of the DSS Distorter and corrects the distortion generated there. For the DSS projection, this direction is described analytically using a polynomial expansion, while the 'forward' distortion must be done by inverting the polynomial using Newton's method.

See Also:

Serialized Form

Constructor Summary

DSSDistorter.DSSInvDistorter()

Method Summary

java.lang.String	getDescription() Get a description of this component
java.lang.String	getName() Get the name of this component
Distorter	inverse() Get the inverse Distorter
Distorter	invert() Get the forward distorter back
boolean	isInverse(Transformer t) Is this the inverse of another distorter?
void	transform(double[] x, double[] y) Transform a point

Methods inherited from class skyview.geometry.Distorter

getInputDimension, getOutputDimension

Methods inherited from class skyview.geometry.Transformer

transform, transform

Methods inherited from class java.lang.Object

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

Constructor Detail

DSSDistorter.DSSInvDistorter

public DSSDistorter.DSSInvDistorter()

Method Detail

invert

public Distorter invert()

Get the forward distorter back

getName

public java.lang.String getName()

Get the name of this component

Specified by:

getName in interface Component

Overrides:

getName in class Distorter

getDescription

public java.lang.String getDescription()

Get a description of this component

Specified by:

getDescription in interface Component

Overrides:

getDescription in class Distorter

inverse

public Distorter inverse()

Get the inverse Distorter

Specified by:

inverse in class Distorter

isInverse

public boolean isInverse(Transformer t)

Is this the inverse of another distorter?

Specified by:

isInverse in class Transformer

transform

public void transform(double[] x,
                      double[] y)

Transform a point

Specified by:

transform in class Transformer

Parameters:

x - The input vector.

y - The output vector, it may be the same as the input vector if the dimensionalities are the same. All transformers are expected to work with aliased inputs and output.