edu.uci.ics.jung.visualization.jai
Class PerspectiveTransformer

java.lang.Object
  edu.uci.ics.jung.visualization.transform.MutableTransformerDecorator
      edu.uci.ics.jung.visualization.jai.PerspectiveTransformer

All Implemented Interfaces:

BidirectionalTransformer, MutableTransformer, ShapeTransformer, ChangeEventSupport

Direct Known Subclasses:

PerspectiveShapeTransformer

public class PerspectiveTransformer
extends MutableTransformerDecorator
implements MutableTransformer

PerspectiveTransformer wraps a MutableAffineTransformer and modifies the transform and inverseTransform methods so that they create a perspective projection of the graph points.

Author:

Tom Nelson

Field Summary

protected javax.media.jai.PerspectiveTransform

perspectiveTransform

Fields inherited from class edu.uci.ics.jung.visualization.transform.MutableTransformerDecorator

delegate

Constructor Summary

PerspectiveTransformer(javax.media.jai.PerspectiveTransform perspectiveTransform)
create an instance, setting values from the passed component and registering to listen for size changes on the component

PerspectiveTransformer(javax.media.jai.PerspectiveTransform perspectiveTransform, MutableTransformer delegate)
create an instance with a possibly shared transform

Method Summary

javax.media.jai.PerspectiveTransform	createInverse()
javax.media.jai.PerspectiveTransform	getPerspectiveTransform()
Point2D	inversePerspectiveTransform(Point2D viewPoint) override base class to un-project the perspective effect
Point2D	inverseTransform(Point2D viewPoint) override base class to un-project the perspective effect
Point2D	perspectiveTransform(Point2D graphPoint)
void	setPerspectiveTransform(javax.media.jai.PerspectiveTransform perspectiveTransform)
void	setToIdentity()
Point2D	transform(Point2D graphPoint) override base class transform to project the perspective effect

Methods inherited from class edu.uci.ics.jung.visualization.transform.MutableTransformerDecorator

addChangeListener, concatenate, fireStateChanged, getChangeListeners, getDelegate, getRotation, getScale, getScaleX, getScaleY, getShearX, getShearY, getTransform, getTranslateX, getTranslateY, inverseTransform, preConcatenate, removeChangeListener, rotate, rotate, scale, setDelegate, setScale, setTranslate, shear, transform, translate

Methods inherited from class java.lang.Object

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

Methods inherited from interface edu.uci.ics.jung.visualization.transform.MutableTransformer

concatenate, getRotation, getScale, getScaleX, getScaleY, getShearX, getShearY, getTransform, getTranslateX, getTranslateY, preConcatenate, rotate, rotate, scale, setScale, setTranslate, shear, translate

Methods inherited from interface edu.uci.ics.jung.visualization.transform.shape.ShapeTransformer

inverseTransform, transform

Methods inherited from interface edu.uci.ics.jung.visualization.util.ChangeEventSupport

addChangeListener, fireStateChanged, getChangeListeners, removeChangeListener

Field Detail

perspectiveTransform

protected javax.media.jai.PerspectiveTransform perspectiveTransform

Constructor Detail

PerspectiveTransformer

public PerspectiveTransformer(javax.media.jai.PerspectiveTransform perspectiveTransform)

create an instance, setting values from the passed component and registering to listen for size changes on the component

Parameters:

component -

PerspectiveTransformer

public PerspectiveTransformer(javax.media.jai.PerspectiveTransform perspectiveTransform,
                              MutableTransformer delegate)

create an instance with a possibly shared transform

Parameters:

component -

delegate -

Method Detail

setToIdentity

public void setToIdentity()

Specified by:

setToIdentity in interface MutableTransformer

Overrides:

setToIdentity in class MutableTransformerDecorator

createInverse

public javax.media.jai.PerspectiveTransform createInverse()

transform

public Point2D transform(Point2D graphPoint)

override base class transform to project the perspective effect

Specified by:

transform in interface BidirectionalTransformer

Overrides:

transform in class MutableTransformerDecorator

Parameters:

graphPoint - graph point to convert

Returns:

screen point

inverseTransform

public Point2D inverseTransform(Point2D viewPoint)

override base class to un-project the perspective effect

Specified by:

inverseTransform in interface BidirectionalTransformer

Overrides:

inverseTransform in class MutableTransformerDecorator

Parameters:

viewPoint - screen point to convert

Returns:

the graph point

perspectiveTransform

public Point2D perspectiveTransform(Point2D graphPoint)

inversePerspectiveTransform

public Point2D inversePerspectiveTransform(Point2D viewPoint)

override base class to un-project the perspective effect

getPerspectiveTransform

public javax.media.jai.PerspectiveTransform getPerspectiveTransform()

setPerspectiveTransform

public void setPerspectiveTransform(javax.media.jai.PerspectiveTransform perspectiveTransform)