net.sf.jcgm.core
Class EllipseElement

java.lang.Object
  net.sf.jcgm.core.Command
      net.sf.jcgm.core.EllipseElement

All Implemented Interfaces:

java.lang.Cloneable

Direct Known Subclasses:

EllipticalArc

public class EllipseElement
extends Command

Class=4, Element=17

Version:

$Id: EllipseElement.java 46 2011-12-14 08:26:44Z phica $

Author:

xphc (Philippe Cadé), BBNT Solutions

Field Summary

protected java.awt.geom.Point2D.Double	center
protected java.awt.Shape	ellipse
protected java.awt.geom.Point2D.Double	firstConjugateDiameterEndPoint
protected java.awt.geom.Point2D.Double	secondConjugateDiameterEndPoint

Fields inherited from class net.sf.jcgm.core.Command

args, currentArg

Constructor Summary

EllipseElement(int ec, int eid, int l, java.io.DataInput in)

Method Summary

protected void	applyArcs(CGMDisplay d, java.awt.geom.AffineTransform transform) Defines the arc for this ellipse, if any
protected java.awt.Shape	createShape(double centerFirstDistance, double centerSecondDistance) Creates the ellipse around the origin.
protected double	distance(java.awt.geom.Point2D.Double p1, java.awt.geom.Point2D.Double p2) Returns the distance between the points p1 and p2
protected void	initializeShape(CGMDisplay d) Creates the ellipse on the first call.
void	paint(CGMDisplay d)
java.lang.String	toString()

Methods inherited from class net.sf.jcgm.core.Command

alignOnWord, clone, getElementClass, getElementCode, info, makeByte, makeChar, makeColorIndex, makeColorIndex, makeDirectColor, makeEnum, makeFixedPoint, makeFixedString, makeFloat32, makeFloatingPoint, makeFloatingPoint32, makeIndex, makeInt, makeName, makePoint, makeReal, makeSDR, makeSignedInt16, makeSignedInt24, makeSignedInt32, makeSignedInt8, makeSizeSpecification, makeString, makeUInt, makeVc, makeVdc, printShape, read, readCommand, sizeOfDirectColor, sizeOfEnum, sizeOfInt, sizeOfPoint, sizeOfVdc, unimplemented, unsupported

Methods inherited from class java.lang.Object

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

Field Detail

center

protected java.awt.geom.Point2D.Double center

firstConjugateDiameterEndPoint

protected java.awt.geom.Point2D.Double firstConjugateDiameterEndPoint

secondConjugateDiameterEndPoint

protected java.awt.geom.Point2D.Double secondConjugateDiameterEndPoint

ellipse

protected java.awt.Shape ellipse

Constructor Detail

EllipseElement

public EllipseElement(int ec,
                      int eid,
                      int l,
                      java.io.DataInput in)
               throws java.io.IOException

Throws:

java.io.IOException

Method Detail

initializeShape

protected void initializeShape(CGMDisplay d)

Creates the ellipse on the first call. Returns the previously computed ellipse on subsequent calls.

Parameters:

d -

applyArcs

protected void applyArcs(CGMDisplay d,
                         java.awt.geom.AffineTransform transform)

Defines the arc for this ellipse, if any

Parameters:

d -

transform - The inverted transformation that is applied to the ellipse

paint

public void paint(CGMDisplay d)

Overrides:

paint in class Command

distance

protected double distance(java.awt.geom.Point2D.Double p1,
                          java.awt.geom.Point2D.Double p2)

Returns the distance between the points p1 and p2

Parameters:

p1 -

p2 -

Returns:

createShape

protected java.awt.Shape createShape(double centerFirstDistance,
                                     double centerSecondDistance)

Creates the ellipse around the origin.

Parameters:

centerFirstDistance - Width of the ellipse

centerSecondDistance - Height of the ellipse

Returns:

toString

public java.lang.String toString()

Overrides:

toString in class Command