Package org.jungrapht.visualization.transform

Class MagnifyTransformer

java.lang.Object

org.jungrapht.visualization.transform.MutableTransformerDecorator

org.jungrapht.visualization.transform.LensTransformer

org.jungrapht.visualization.transform.MagnifyTransformer

All Implemented Interfaces:

BidirectionalTransformer, MutableTransformer, ShapeTransformer, ChangeEventSupport

Direct Known Subclasses:

MagnifyShapeTransformer

public class MagnifyTransformer
extends LensTransformer
implements MutableTransformer

MagnifyTransformer wraps a MutableAffineTransformer and modifies the transform and inverseTransform methods so that they create an enlarging projection of the graph points.

MagnifyTransformer uses an affine transform to cause translation, scaling, rotation, and shearing while applying a separate magnification filter in its transform and inverseTransform methods.

Author:

Tom Nelson

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	MagnifyTransformer.Builder<T extends MagnifyTransformer,B extends MagnifyTransformer.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	MagnifyTransformer(Dimension d)	Create an instance, setting values from the passed component and registering to listen for layoutSize changes on the component.
	MagnifyTransformer(Dimension d, MutableTransformer delegate)	Create an instance with a possibly shared transform.
protected	MagnifyTransformer(Lens lens)
	MagnifyTransformer(Lens lens, MutableTransformer delegate)
protected	MagnifyTransformer(MagnifyTransformer.Builder builder)

Method Summary

Modifier and Type	Method	Description
static MagnifyTransformer.Builder<?,?>	builder(Dimension dimension)
static MagnifyTransformer.Builder<?,?>	builder(Lens lens)
Point2D	inverseTransform(Point2D viewPoint)	override base class to un-project the fisheye effect
Point2D	magnify(Point2D graphPoint)	Magnifies the point, without considering the Lens.
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

MagnifyTransformer

protected MagnifyTransformer(MagnifyTransformer.Builder builder)

MagnifyTransformer

protected MagnifyTransformer(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

MagnifyTransformer

protected MagnifyTransformer(Lens lens)

MagnifyTransformer

public MagnifyTransformer(Dimension d,
                          MutableTransformer delegate)

Create an instance with a possibly shared transform.

Parameters:

d - the size used for the lens

delegate - the layoutTransformer to use

MagnifyTransformer

public MagnifyTransformer(Lens lens,
                          MutableTransformer delegate)

Method Detail

builder

public static MagnifyTransformer.Builder<?,?> builder(Lens lens)

builder

public static MagnifyTransformer.Builder<?,?> 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 - is a location of something in the graph in the layout coordinate system

Returns:

that location transformed to the view coordinate system and possibly further transformed by the lens magnification

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

magnify

public Point2D magnify(Point2D graphPoint)

Magnifies the point, without considering the Lens.

Parameters:

graphPoint - the point to transform via magnification

Returns:

the transformed point