/* jCAE stand for Java Computer Aided Engineering. Features are : Small CAD
modeler, Finite element mesher, Plugin architecture.
Copyright (C) 2004,2005, by EADS CRC
Copyright (C) 2007, by EADS France
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */
package org.jcae.mesh.amibe.metrics;
import javax.media.j3d.Appearance;
import javax.media.j3d.GeometryArray;
import javax.media.j3d.QuadArray;
import javax.media.j3d.PointArray;
import javax.media.j3d.Shape3D;
import javax.media.j3d.BranchGroup;
import javax.media.j3d.PolygonAttributes;
import javax.media.j3d.ColoringAttributes;
import javax.media.j3d.PointAttributes;
/**
* Utility class to write unit tests for the Octree class.
*/
public class OctreeSample
{
private final KdTree octree;
OctreeSample(KdTree o)
{
octree = o;
}
private class CoordProcedure implements KdTreeProcedure
{
public final double [] coord;
private int index;
public CoordProcedure(int n)
{
coord = new double[72*n];
}
@Override
public final int action(Object o, int s, final int [] i0)
{
int [] ii = { i0[0], i0[1], i0[2] };
double [] p = new double[3];
double [] p2 = new double[3];
octree.int2double(ii, p);
ii[0] += s;
octree.int2double(ii, p2);
double ds = p2[0] - p[0];
double offset = 0.0;
for (int i = 0; i < 2; i++)
{
// 0xy
coord[index] = p[0];
coord[index+1] = p[1];
coord[index+2] = p[2]+offset;
index += 3;
coord[index] = p[0]+ds;
coord[index+1] = p[1];
coord[index+2] = p[2]+offset;
index += 3;
coord[index] = p[0]+ds;
coord[index+1] = p[1]+ds;
coord[index+2] = p[2]+offset;
index += 3;
coord[index] = p[0];
coord[index+1] = p[1]+ds;
coord[index+2] = p[2]+offset;
index += 3;
// 0xz
coord[index] = p[0];
coord[index+1] = p[1]+offset;
coord[index+2] = p[2];
index += 3;
coord[index] = p[0];
coord[index+1] = p[1]+offset;
coord[index+2] = p[2]+ds;
index += 3;
coord[index] = p[0]+ds;
coord[index+1] = p[1]+offset;
coord[index+2] = p[2]+ds;
index += 3;
coord[index] = p[0]+ds;
coord[index+1] = p[1]+offset;
coord[index+2] = p[2];
index += 3;
// 0yz
coord[index] = p[0]+offset;
coord[index+1] = p[1];
coord[index+2] = p[2];
index += 3;
coord[index] = p[0]+offset;
coord[index+1] = p[1]+ds;
coord[index+2] = p[2];
index += 3;
coord[index] = p[0]+offset;
coord[index+1] = p[1]+ds;
coord[index+2] = p[2]+ds;
index += 3;
coord[index] = p[0]+offset;
coord[index+1] = p[1];
coord[index+2] = p[2]+ds;
index += 3;
offset += ds;
}
return KdTreeProcedure.OK;
}
}
/*
private class CheckCoordProcedure implements KdTreeProcedure
{
@Override
public final int action(Object o, int s, final int [] i0)
{
KdTree.Cell self = (KdTree.Cell) o;
if (!self.isLeaf())
return 0;
double [] coord = new double[6];
int [] ii = { i0[0], i0[1], i0[2] };
double [] p = new double[3];
octree.int2double(ii, p);
coord[0] = p[0];
coord[1] = p[1];
coord[2] = p[2];
ii[0] += s;
ii[1] += s;
ii[2] += s;
octree.int2double(ii, p);
coord[3] = p[0];
coord[4] = p[1];
coord[5] = p[2];
for (int i = 0, n = self.count(); i < n; i++)
{
Vertex v = self.getVertex(i);
p = v.getUV();
if (p[0] < coord[0] || p[0] > coord[3] ||
p[1] < coord[1] || p[1] > coord[4] ||
p[2] < coord[2] || p[2] > coord[5])
{
System.out.println("Vertex "+v+" not in box ("+coord[0]+","+coord[1]+","+coord[2]+") : ("+coord[3]+","+coord[4]+","+coord[5]+")");
}
}
return KdTreeProcedure.OK;
}
}
*/
private static class CoordVertProcedure implements KdTreeProcedure
{
public final double [] coord;
private int index = 0;
public CoordVertProcedure(int n)
{
coord = new double[3*n];
}
@Override
public final int action(Object o, int s, final int [] i0)
{
KdTree.Cell self = (KdTree.Cell) o;
if (!self.isLeaf())
return KdTreeProcedure.OK;
for (int i = 0, n = self.count(); i < n; i++)
{
double [] param = self.getVertex(i).getUV();
coord[index] = param[0];
coord[index+1] = param[1];
coord[index+2] = param[2];
index += 3;
}
return KdTreeProcedure.OK;
}
}
private static class CountVertProcedure implements KdTreeProcedure
{
int count;
public CountVertProcedure()
{
}
@Override
public final int action(Object o, int s, final int [] i0)
{
KdTree.Cell self = (KdTree.Cell) o;
count = self.count();
return KdTreeProcedure.ABORT;
}
}
final BranchGroup bgOctree()
{
BranchGroup bg=new BranchGroup();
CoordProcedure proc = new CoordProcedure(octree.nCells);
octree.walk(proc);
QuadArray quad = new QuadArray(24*octree.nCells, GeometryArray.COORDINATES);
quad.setCapability(GeometryArray.ALLOW_FORMAT_READ);
quad.setCapability(GeometryArray.ALLOW_COUNT_READ);
quad.setCapability(GeometryArray.ALLOW_COORDINATE_READ);
quad.setCoordinates(0, proc.coord);
Appearance quadApp = new Appearance();
quadApp.setPolygonAttributes(new PolygonAttributes(PolygonAttributes.POLYGON_LINE, PolygonAttributes.CULL_NONE, 0));
quadApp.setColoringAttributes(new ColoringAttributes(0,1,0,ColoringAttributes.SHADE_GOURAUD));
Shape3D shapeQuad=new Shape3D(quad, quadApp);
shapeQuad.setCapability(Shape3D.ALLOW_GEOMETRY_READ);
bg.addChild(shapeQuad);
return bg;
}
final BranchGroup bgVertices()
{
BranchGroup bg=new BranchGroup();
CountVertProcedure cproc = new CountVertProcedure();
octree.walk(cproc);
int nVertices = cproc.count;
CoordVertProcedure vproc = new CoordVertProcedure(nVertices);
octree.walk(vproc);
PointArray p = new PointArray(nVertices, GeometryArray.COORDINATES);
p.setCoordinates(0, vproc.coord);
Appearance vertApp = new Appearance();
vertApp.setPointAttributes(new PointAttributes());
vertApp.setColoringAttributes(new ColoringAttributes(1,1,1,ColoringAttributes.SHADE_GOURAUD));
Shape3D shapePoint=new Shape3D(p, vertApp);
shapePoint.setCapability(Shape3D.ALLOW_GEOMETRY_READ);
shapePoint.setPickable(false);
bg.addChild(shapePoint);
return bg;
}
}