/*
* Open Source Physics software is free software as described near the bottom of this code file.
*
* For additional information and documentation on Open Source Physics please see:
* <http://www.opensourcephysics.org/>
*/
package org.opensourcephysics.display3d.simple3d;
import org.opensourcephysics.controls.XML;
import org.opensourcephysics.controls.XMLControl;
/**
* <p>Title: ElementBox</p>
* <p>Description: Painter's algorithm implementation of a Surface</p>
* @author Francisco Esquembre
* @version March 2005
*/
public class ElementTessellation extends AbstractTile implements org.opensourcephysics.display3d.core.ElementTessellation {
// Configuration variables
protected double[][][] data;
{ // Initialization block
setXYZ(0.0, 0.0, 0.0);
setSizeXYZ(1.0, 1.0, 1.0);
}
// -------------------------------------
// Configuration
// -------------------------------------
public void setTiles(double[][][] data) {
if(this.data==data) {
return;
}
int n = data.length;
double[][][] newCorners = new double[n][][];
for(int i = 0; i<n; i++) {
newCorners[i] = new double[data[i].length][3];
}
setCorners(newCorners);
this.data = data;
setElementChanged(true);
}
public double[][][] getTiles() {
return this.data;
}
// -------------------------------------
// Private or protected methods
// -------------------------------------
public void getExtrema(double[] min, double[] max) {
double minX = Double.POSITIVE_INFINITY, maxX = Double.NEGATIVE_INFINITY;
double minY = Double.POSITIVE_INFINITY, maxY = Double.NEGATIVE_INFINITY;
double minZ = Double.POSITIVE_INFINITY, maxZ = Double.NEGATIVE_INFINITY;
double[] aPoint = new double[3];
for(int i = 0; i<numberOfTiles; i++) {
int sides = corners[i].length;
for(int j = 0; j<sides; j++) {
System.arraycopy(corners[i][j], 0, aPoint, 0, 3);
sizeAndToSpaceFrame(aPoint);
minX = Math.min(minX, aPoint[0]);
maxX = Math.max(maxX, aPoint[0]);
minY = Math.min(minY, aPoint[1]);
maxY = Math.max(maxY, aPoint[1]);
minZ = Math.min(minZ, aPoint[2]);
maxZ = Math.max(maxZ, aPoint[2]);
}
}
min[0] = minX;
max[0] = maxX;
min[1] = minY;
max[1] = maxY;
min[2] = minZ;
max[2] = maxZ;
}
protected synchronized void computeCorners() {
if(data==null) {
return;
}
//int tile = 0;
for(int i = 0; i<data.length; i++) {
for(int j = 0, n = data[i].length; j<n; j++) {
System.arraycopy(data[i][j], 0, corners[i][j], 0, 3);
}
}
for(int i = 0; i<numberOfTiles; i++) {
for(int j = 0, sides = corners[i].length; j<sides; j++) {
System.arraycopy(data[i][j], 0, corners[i][j], 0, 3);
sizeAndToSpaceFrame(corners[i][j]);
}
}
setElementChanged(false);
}
// ----------------------------------------------------
// XML loader
// ----------------------------------------------------
/**
* Returns an XML.ObjectLoader to save and load object data.
* @return the XML.ObjectLoader
*/
public static XML.ObjectLoader getLoader() {
return new Loader();
}
static private class Loader extends org.opensourcephysics.display3d.core.ElementSurface.Loader {
public Object createObject(XMLControl control) {
return new ElementTessellation();
}
}
}
/*
* Open Source Physics software is free software; you can redistribute
* it and/or modify it under the terms of the GNU General Public License (GPL) as
* published by the Free Software Foundation; either version 2 of the License,
* or(at your option) any later version.
* Code that uses any portion of the code in the org.opensourcephysics package
* or any subpackage (subdirectory) of this package must must also be be released
* under the GNU GPL license.
*
* This software 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston MA 02111-1307 USA
* or view the license online at http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2007 The Open Source Physics project
* http://www.opensourcephysics.org
*/