Package org.jdesktop.swingx.geom

Class Morphing2D

java.lang.Object

org.jdesktop.swingx.geom.Morphing2D

All Implemented Interfaces:

java.awt.Shape

public class Morphing2D
extends java.lang.Object
implements java.awt.Shape

A morphing shape is a shape which geometry is constructed from two other shapes: a start shape and an end shape.

The morphing property of a morphing shape defines the amount of transformation applied to the start shape to turn it into the end shape.

Both shapes must have the same winding rule.

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
private static class	Morphing2D.Geometry
private static class	Morphing2D.Iterator

Field Summary

Fields

Modifier and Type	Field	Description
private Morphing2D.Geometry	endGeometry
private double	morph
private Morphing2D.Geometry	startGeometry

Constructor Summary

Constructors

Constructor	Description
Morphing2D(java.awt.Shape startShape, java.awt.Shape endShape)	Creates a new morphing shape.

Method Summary

Modifier and Type	Method	Description
boolean	contains(double x, double y)
boolean	contains(double x, double y, double w, double h)
boolean	contains(java.awt.geom.Point2D p)
boolean	contains(java.awt.geom.Rectangle2D r)
java.awt.Rectangle	getBounds()
java.awt.geom.Rectangle2D	getBounds2D()
double	getMorphing()	Returns the morphing value between the two shapes.
java.awt.geom.PathIterator	getPathIterator(java.awt.geom.AffineTransform at)
java.awt.geom.PathIterator	getPathIterator(java.awt.geom.AffineTransform at, double flatness)
private static double	interp(double v0, double v1, double t)
boolean	intersects(double x, double y, double w, double h)
boolean	intersects(java.awt.geom.Rectangle2D r)
private static double[]	mergeTvals(double[] tvals0, double[] tvals1)
void	setMorphing(double morph)	Sets the morphing value between the two shapes.

Methods inherited from class java.lang.Object

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

Field Detail

morph

private double morph

startGeometry

private Morphing2D.Geometry startGeometry

endGeometry

private Morphing2D.Geometry endGeometry

Constructor Detail

Morphing2D

public Morphing2D(java.awt.Shape startShape,
                  java.awt.Shape endShape)

Creates a new morphing shape. A morphing shape can be used to turn one shape into another one. The transformation can be controlled by the morph property.

Parameters:

startShape - the shape to morph from

endShape - the shape to morph to

Throws:

java.awt.geom.IllegalPathStateException - if the shapes do not have the same winding rule

See Also:

getMorphing(), setMorphing(double)

Method Detail

getMorphing

public double getMorphing()

Returns the morphing value between the two shapes.

Returns:

the morphing value between the two shapes

See Also:

setMorphing(double)

setMorphing

public void setMorphing(double morph)

Sets the morphing value between the two shapes. This value controls the transformation from the start shape to the end shape. A value of 0.0 is the start shape. A value of 1.0 is the end shape. A value of 0.5 is a new shape, morphed half way from the start shape to the end shape.

The specified value should be between 0.0 and 1.0. If not, the value is clamped in the appropriate range.

Parameters:

morph - the morphing value between the two shapes

See Also:

getMorphing()

interp

private static double interp(double v0,
                             double v1,
                             double t)

mergeTvals

private static double[] mergeTvals(double[] tvals0,
                                   double[] tvals1)

getBounds

public java.awt.Rectangle getBounds()

Specified by:

getBounds in interface java.awt.Shape

getBounds2D

public java.awt.geom.Rectangle2D getBounds2D()

Specified by:

getBounds2D in interface java.awt.Shape

contains

public boolean contains(double x,
                        double y)

Specified by:

contains in interface java.awt.Shape

contains

public boolean contains(java.awt.geom.Point2D p)

Specified by:

contains in interface java.awt.Shape

intersects

public boolean intersects(double x,
                          double y,
                          double w,
                          double h)

Specified by:

intersects in interface java.awt.Shape

intersects

public boolean intersects(java.awt.geom.Rectangle2D r)

Specified by:

intersects in interface java.awt.Shape

contains

public boolean contains(double x,
                        double y,
                        double w,
                        double h)

Specified by:

contains in interface java.awt.Shape

contains

public boolean contains(java.awt.geom.Rectangle2D r)

Specified by:

contains in interface java.awt.Shape

getPathIterator

public java.awt.geom.PathIterator getPathIterator(java.awt.geom.AffineTransform at)

Specified by:

getPathIterator in interface java.awt.Shape

getPathIterator

public java.awt.geom.PathIterator getPathIterator(java.awt.geom.AffineTransform at,
                                                  double flatness)

Specified by:

getPathIterator in interface java.awt.Shape