uk.ac.starlink.ttools.plot2.geom

Class Sin2

java.lang.Object

skyview.geometry.Transformer

skyview.geometry.Projecter

uk.ac.starlink.ttools.plot2.geom.Sin2

All Implemented Interfaces:

Serializable, skyview.Component

public final class Sin2
extends skyview.geometry.Projecter

Sine (Orthographic) projecter implementation.

This class is copied from the Skyview original class skyview.geometry.projecter.Sin. Apart from changing the name to Sin2 (which is significant since some implementation behaviour is name-dependent), it just shuffles the order of the coordinates so that the tangent point is at (1,0,0) instead of (0,0,1).

Author:

Tom McGlynn, Mark Taylor

See Also:

https://skyview.gsfc.nasa.gov/, Serialized Form

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	Sin2.Sin2Deproj

Constructor Summary

Constructors

Constructor and Description
Sin2()

Method Summary

Modifier and Type	Method and Description
String	getDescription() Get a description of the component
String	getName() Get the name of the component
skyview.geometry.Deprojecter	inverse() Get the inverse transformation
boolean	isInverse(skyview.geometry.Transformer t) Is this an inverse of some other transformation?
void	transform(double[] sphere, double[] plane) Project a point from the sphere to the plane.
boolean	validPosition(double[] plane)

Methods inherited from class skyview.geometry.Projecter

allValid, getInputDimension, getOutputDimension, getXTiling, getYTiling

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

Sin2

public Sin2()

Method Detail

getName

public String getName()

Get the name of the component

getDescription

public String getDescription()

Get a description of the component

inverse

public skyview.geometry.Deprojecter inverse()

Get the inverse transformation

Overrides:

inverse in class skyview.geometry.Projecter

isInverse

public boolean isInverse(skyview.geometry.Transformer t)

Is this an inverse of some other transformation?

Specified by:

isInverse in class skyview.geometry.Transformer

transform

public final void transform(double[] sphere,
                            double[] plane)

Project a point from the sphere to the plane.

Specified by:

transform in class skyview.geometry.Transformer

Parameters:

sphere - a double[3] unit vector

plane - a double[2] preallocated vector.

validPosition

public boolean validPosition(double[] plane)

Overrides:

validPosition in class skyview.geometry.Projecter