Class MagnifyTransformer

java.lang.Object

edu.uci.ics.jung.visualization.transform.MutableTransformerDecorator

edu.uci.ics.jung.visualization.transform.LensTransformer

edu.uci.ics.jung.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.

Nested Class Summary

Nested classes/interfaces inherited from class LensTransformer

LensTransformer.ComponentListenerImpl

Field Summary

Fields inherited from class LensTransformer

lensShape, magnification

Fields inherited from class MutableTransformerDecorator

delegate

Constructor Summary

Constructors

Constructor	Description
MagnifyTransformer(Component component)	Create an instance, setting values from the passed component and registering to listen for size changes on the component.
MagnifyTransformer(Component component, MutableTransformer delegate)	Create an instance with a possibly shared transform.

Method Summary

Modifier and Type	Method	Description
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 LensTransformer

getDistanceFromCenter, getLensShape, getMagnification, getRatio, getViewCenter, getViewRadius, inverseTransform, setLensShape, setMagnification, setToIdentity, setViewCenter, setViewRadius, transform

Methods inherited from class MutableTransformerDecorator

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

Methods inherited from class Object

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

Methods inherited from interface ChangeEventSupport

addChangeListener, fireStateChanged, getChangeListeners, removeChangeListener

Methods inherited from interface MutableTransformer

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

Methods inherited from interface ShapeTransformer

inverseTransform, transform

Constructor Details

MagnifyTransformer

public MagnifyTransformer(Component component)

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

Parameters:

component - the component used for rendering

MagnifyTransformer

public MagnifyTransformer(Component component,
 MutableTransformer delegate)

Create an instance with a possibly shared transform.

Parameters:

component - the component used for rendering

delegate - the transformer to use

Method Details

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

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