edu.uci.ics.jung.visualization.transform

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.

Constructor Summary

Constructors

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

Method Summary

Modifier and Type	Method and Description
java.awt.geom.Point2D	inverseTransform(java.awt.geom.Point2D viewPoint) override base class to un-project the fisheye effect
java.awt.geom.Point2D	magnify(java.awt.geom.Point2D graphPoint) Magnifies the point, without considering the Lens.
java.awt.geom.Point2D	transform(java.awt.geom.Point2D graphPoint) override base class transform to project the fisheye effect

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

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

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, preConcatenate, removeChangeListener, rotate, rotate, scale, setDelegate, setScale, setTranslate, shear, translate

Methods inherited from class java.lang.Object

equals, 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, setToIdentity, 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

Constructor Detail

MagnifyTransformer

public MagnifyTransformer(java.awt.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(java.awt.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 Detail

transform

public java.awt.geom.Point2D transform(java.awt.geom.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 java.awt.geom.Point2D inverseTransform(java.awt.geom.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 java.awt.geom.Point2D magnify(java.awt.geom.Point2D graphPoint)

Magnifies the point, without considering the Lens.

Parameters:

graphPoint - the point to transform via magnification

Returns:

the transformed point