org.cell2d.celick.geom

Class NeatTriangulator

java.lang.Object

org.cell2d.celick.geom.NeatTriangulator

All Implemented Interfaces:

java.io.Serializable, Triangulator

public class NeatTriangulator
extends java.lang.Object
implements Triangulator

A second triangulator that seems slightly more robust

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
NeatTriangulator() Create a new triangulator

Method Summary

Modifier and Type	Method and Description
void	addPolyPoint(float x, float y) Add a point to the polygon
void	basicTriangulation() Perform simple triangulation
void	clear() Clear the triangulator status
int	getTriangleCount() Get a count of the number of triangles produced
float[]	getTrianglePoint(int tri, int i) Get a point on a specified generated triangle
void	startHole() Start a hole in the polygon
boolean	triangulate() Upate the triangles

Methods inherited from class java.lang.Object

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

Constructor Detail

NeatTriangulator

public NeatTriangulator()

Create a new triangulator

Method Detail

clear

public void clear()

Clear the triangulator status

basicTriangulation

public void basicTriangulation()
                        throws org.cell2d.celick.geom.NeatTriangulator.InternalException

Perform simple triangulation

Throws:

InternalException - Indicates a polygon that can't be triangulated

org.cell2d.celick.geom.NeatTriangulator.InternalException

triangulate

public boolean triangulate()

Upate the triangles

Specified by:

triangulate in interface Triangulator

Returns:

True if successful

addPolyPoint

public void addPolyPoint(float x,
                         float y)

Add a point to the polygon

Specified by:

addPolyPoint in interface Triangulator

Parameters:

x - The x coordinate of the point

y - The y coordiante of the point

getTriangleCount

public int getTriangleCount()

Description copied from interface: Triangulator

Get a count of the number of triangles produced

Specified by:

getTriangleCount in interface Triangulator

Returns:

The number of triangles produced

getTrianglePoint

public float[] getTrianglePoint(int tri,
                                int i)

Description copied from interface: Triangulator

Get a point on a specified generated triangle

Specified by:

getTrianglePoint in interface Triangulator

Parameters:

tri - The index of the triangle to interegate

i - The index of the point within the triangle to retrieve (0 - 2)

Returns:

The x,y coordinate pair for the point

startHole

public void startHole()

Description copied from interface: Triangulator

Start a hole in the polygon

Specified by:

startHole in interface Triangulator