Package org.jungrapht.visualization.transform

Class HyperbolicTransformer

java.lang.Object

org.jungrapht.visualization.transform.MutableTransformerDecorator

org.jungrapht.visualization.transform.LensTransformer

org.jungrapht.visualization.transform.HyperbolicTransformer

All Implemented Interfaces:

BidirectionalTransformer, MutableTransformer, ShapeTransformer, ChangeEventSupport

Direct Known Subclasses:

HyperbolicShapeTransformer

public class HyperbolicTransformer
extends LensTransformer
implements MutableTransformer

HyperbolicTransformer wraps a MutableAffineTransformer and modifies the transform and inverseTransform methods so that they create a fisheye projection of the graph points, with points near the center spread out and points near the edges collapsed onto the circumference of an ellipse or the boundaries of a rectangle

HyperbolicTransformer is not an affine transform, but it uses an affine transform to cause translation, scaling, rotation, and shearing while applying a non-affine hyperbolic filter in its transform and inverseTransform methods.

Author:

Tom Nelson

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	HyperbolicTransformer.Builder<T extends HyperbolicTransformer,B extends HyperbolicTransformer.Builder<T,B>>

Field Summary

Fields inherited from class org.jungrapht.visualization.transform.LensTransformer

lens

Fields inherited from class org.jungrapht.visualization.transform.MutableTransformerDecorator

delegate

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	HyperbolicTransformer(Dimension d)	Create an instance, setting values from the passed component and registering to listen for layoutSize changes on the component.
protected	HyperbolicTransformer(Dimension d, MutableTransformer delegate)	create an instance, setting values from the passed component and registering to listen for layoutSize changes on the component
protected	HyperbolicTransformer(HyperbolicTransformer.Builder builder)
protected	HyperbolicTransformer(Lens lens, MutableTransformer delegate)	Create an instance with a possibly shared transform.

Method Summary

Modifier and Type	Method	Description
static <T extends HyperbolicTransformer> HyperbolicTransformer.Builder<T,?>	builder(Dimension dimension)
static <T extends HyperbolicTransformer> HyperbolicTransformer.Builder<T,?>	builder(Lens lens)
Point2D	inverseTransform(Point2D viewPoint)	override base class to un-project the fisheye effect
Point2D	transform(Point2D graphPoint)	override base class transform to project the fisheye effect

Methods inherited from class org.jungrapht.visualization.transform.LensTransformer

getLens, inverseTransform, setToIdentity, transform

Methods inherited from class org.jungrapht.visualization.transform.MutableTransformerDecorator

addChangeListener, concatenate, fireStateChanged, getChangeListeners, getDelegate, getRotation, getScale, getScaleX, getScaleY, getShearX, getShearY, getTransform, getTranslateX, getTranslateY, inverseTransform, preConcatenate, removeChangeListener, rotate, rotate, scale, 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 org.jungrapht.visualization.transform.BidirectionalTransformer

inverseTransform, transform

Methods inherited from interface org.jungrapht.visualization.util.ChangeEventSupport

addChangeListener, fireStateChanged, getChangeListeners, removeChangeListener

Methods inherited from interface org.jungrapht.visualization.transform.MutableTransformer

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

Methods inherited from interface org.jungrapht.visualization.transform.shape.ShapeTransformer

inverseTransform, transform

Constructor Detail

HyperbolicTransformer

protected HyperbolicTransformer(HyperbolicTransformer.Builder builder)

HyperbolicTransformer

protected HyperbolicTransformer(Dimension d)

Create an instance, setting values from the passed component and registering to listen for layoutSize changes on the component.

Parameters:

d - the size used for the lens

HyperbolicTransformer

protected HyperbolicTransformer(Dimension d,
                                MutableTransformer delegate)

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

Parameters:

d - the size used for the lens

HyperbolicTransformer

protected HyperbolicTransformer(Lens lens,
                                MutableTransformer delegate)

Create an instance with a possibly shared transform.

Parameters:

lens - a lens created elsewhere, but on the same component

Method Detail

builder

public static <T extends HyperbolicTransformer> HyperbolicTransformer.Builder<T,?> builder(Lens lens)

builder

public static <T extends HyperbolicTransformer> HyperbolicTransformer.Builder<T,?> builder(Dimension dimension)

transform

public Point2D transform(Point2D graphPoint)

override base class transform to project the fisheye effect

Specified by:

transform in interface BidirectionalTransformer

Specified by:

transform in class LensTransformer

Parameters:

graphPoint - graph point to convert

Returns:

screen point

inverseTransform

public Point2D inverseTransform(Point2D viewPoint)

override base class to un-project the fisheye effect

Specified by:

inverseTransform in interface BidirectionalTransformer

Specified by:

inverseTransform in class LensTransformer

Parameters:

viewPoint - screen point to convert

Returns:

the graph point