/**
* Copyright (c) 2003-2009, Xith3D Project Group all rights reserved.
*
* Portions based on the Java3D interface, Copyright by Sun Microsystems.
* Many thanks to the developers of Java3D and Sun Microsystems for their
* innovation and design.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice,
* this list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of the 'Xith3D Project Group' nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) A
* RISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE
*/
package org.xith3d.scenegraph;
import org.jagatoo.opengl.enums.GeometryArrayType;
import org.openmali.spatial.WriteableTriangleContainer;
import org.openmali.spatial.polygons.Triangle;
/**
* TriangleFanArray defines a triangle array, where the first vertex is part of
* any triangle. The second and thirtvertex form the first triangle (together
* with the first vertex) and the fourth and fifth triangle form the second
* triangle (together with the first vertex) and so forth.
*
* @author David Yazel
* @author Marvin Froehlich (aka Qudus)
*/
public class TriangleFanArray extends GeometryStripArray implements WriteableTriangleContainer
{
/**
* {@inheritDoc}
*/
@Override
public final boolean isTriangulatable()
{
return ( true );
}
/**
* {@inheritDoc}
*/
@Override
public final boolean isTriangulated()
{
return ( true );
}
/**
* {@inheritDoc}
*/
public int getTriangleCount()
{
return ( getValidVertexCount() - 2 );
}
/**
* {@inheritDoc}
*/
public boolean setTriangle( int i, Triangle triangle )
{
final int idx0 = 0;
final int idx1 = i + 1;
final int idx2 = i + 2;
return ( setTriangle( idx0, idx1, idx2, triangle ) );
}
/**
* {@inheritDoc}
*/
public boolean getTriangle( int i, Triangle triangle )
{
final int idx0 = 0;
final int idx1 = i + 1;
final int idx2 = i + 2;
return ( getTriangle( idx0, idx1, idx2, triangle ) );
}
/**
* {@inheritDoc}
*/
@Override
protected void duplicateNodeComponent( NodeComponent original, boolean forceDuplicate )
{
super.duplicateNodeComponent( original, forceDuplicate );
}
/**
* {@inheritDoc}
*/
@Override
public TriangleFanArray cloneNodeComponent( boolean forceDuplicate )
{
TriangleFanArray tfa = new TriangleFanArray( this.getCoordinatesSize(), this.getVertexCount(), this.getStripVertexCounts() );
tfa.duplicateNodeComponent( this, forceDuplicate );
return ( tfa );
}
public TriangleFanArray( int coordsSize, int vertexCount, int[] stripVertexCounts )
{
super( GeometryArrayType.TRIANGLE_FAN, coordsSize, vertexCount, stripVertexCounts );
}
public TriangleFanArray( int vertexCount, int[] stripVertexCounts )
{
this( 3, vertexCount, stripVertexCounts );
}
public TriangleFanArray( int coordsSize, int vertexCount )
{
this( coordsSize, vertexCount, new int[] { vertexCount } );
}
public TriangleFanArray( int vertexCount )
{
this( 3, vertexCount, new int[] { vertexCount } );
}
}