diva.util.java2d
Class PolygonIterator

java.lang.Object
  diva.util.java2d.PolygonIterator

All Implemented Interfaces:

java.awt.geom.PathIterator

public class PolygonIterator
extends java.lang.Object
implements java.awt.geom.PathIterator

An iterator over Polygon2D. This class is private to this package.

Version:

$Id: PolygonIterator.java 41477 2006-03-29 00:03:58Z cxh $

Author:

John Reekie

Field Summary

private double[]	_coords The transformed coordinates being iterated.
private boolean	_done The flag saying we are already done
private int	_index The current coordinate index.

Fields inherited from interface java.awt.geom.PathIterator

SEG_CLOSE, SEG_CUBICTO, SEG_LINETO, SEG_MOVETO, SEG_QUADTO, WIND_EVEN_ODD, WIND_NON_ZERO

Constructor Summary

PolygonIterator(Polygon2D pl, java.awt.geom.AffineTransform at)
Create a new iterator over the given polygon and with the given transform.

Method Summary

int	currentSegment(double[] coords) Get the current segment
int	currentSegment(float[] coords) Get the current segment
int	getWindingRule() Return the winding rule.
boolean	isDone() Test if the iterator is done.
void	next() Move the iterator along by one point.

Methods inherited from class java.lang.Object

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

Field Detail

_coords

private double[] _coords

The transformed coordinates being iterated.

_index

private int _index

The current coordinate index.

_done

private boolean _done

The flag saying we are already done

Constructor Detail

PolygonIterator

public PolygonIterator(Polygon2D pl,
                       java.awt.geom.AffineTransform at)

Create a new iterator over the given polygon and with the given transform. If the transform is null, that is taken to be the same as a unit Transform.

Method Detail

currentSegment

public int currentSegment(double[] coords)

Get the current segment

Specified by:

currentSegment in interface java.awt.geom.PathIterator

currentSegment

public int currentSegment(float[] coords)

Get the current segment

Specified by:

currentSegment in interface java.awt.geom.PathIterator

getWindingRule

public int getWindingRule()

Return the winding rule. This is WIND_NON_ZERO.

Specified by:

getWindingRule in interface java.awt.geom.PathIterator

isDone

public boolean isDone()

Test if the iterator is done.

Specified by:

isDone in interface java.awt.geom.PathIterator

next

public void next()

Move the iterator along by one point.

Specified by:

next in interface java.awt.geom.PathIterator