/* jCAE stand for Java Computer Aided Engineering. Features are : Small CAD
modeler, Finit element mesher, Plugin architecture.
Copyright (C) 2005 Jerome Robert <jeromerobert@users.sourceforge.net>
Copyright (C) 2008, 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;
import org.jcae.mesh.oemm.OEMM;
import org.jcae.mesh.oemm.Storage;
import org.jcae.mesh.oemm.MeshReader;
import org.jcae.mesh.amibe.ds.Mesh;
import org.jcae.mesh.amibe.ds.Triangle;
import org.jcae.mesh.xmldata.MeshWriter;
import org.jcae.mesh.amibe.validation.*;
import java.io.File;
import java.io.IOException;
import java.awt.event.KeyAdapter;
import java.awt.event.KeyEvent;
import java.beans.PropertyChangeEvent;
import java.beans.PropertyChangeListener;
import java.util.HashMap;
import gnu.trove.set.hash.TIntHashSet;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.media.j3d.BoundingSphere;
import javax.media.j3d.BranchGroup;
import javax.swing.JFrame;
import javax.swing.WindowConstants;
import javax.vecmath.Point3d;
import org.jcae.viewer3d.FPSBehavior;
import org.jcae.viewer3d.OEMMViewer;
import org.jcae.viewer3d.bg.ViewableBG;
import org.jcae.viewer3d.fe.amibe.AmibeProvider;
import org.jcae.viewer3d.fe.ViewableFE;
import org.jcae.viewer3d.fe.FEDomain;
import org.jcae.viewer3d.View;
/**
* This class illustrates how to perform quality checks.
*/
public class MeshOEMMViewer3d
{
static Logger logger=Logger.getLogger(MeshOEMMViewer3d.class.getName());
static ViewableBG fineMesh;
static ViewableFE decMesh;
static boolean showOctree = true;
static boolean showAxis = true;
static boolean showFPS = false;
static boolean showNonReadableTriangles = false;
public static void main(String args[])
{
if (args.length < 1)
{
System.out.println("Usage: MeshOEMMViewer3d dir");
System.exit(0);
}
String dir=args[0];
JFrame feFrame=new JFrame("jCAE Demo");
feFrame.setSize(800,600);
feFrame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
final OEMM oemm = Storage.readOEMMStructure(dir);
final MeshReader mr = new MeshReader(oemm);
final View bgView=new View(feFrame);
final ViewableBG octree = new ViewableBG(OEMMViewer.bgOEMM(oemm, true));
FPSBehavior fpsB = new FPSBehavior();
fpsB.setSchedulingBounds(new BoundingSphere(new Point3d(), Double.MAX_VALUE));
fpsB.addPropertyChangeListener(new PropertyChangeListener() {
public void propertyChange(PropertyChangeEvent evt) {
logger.info("FPS>" + evt.getNewValue());
}
});
BranchGroup fpsBG = new BranchGroup();
fpsBG.addChild(fpsB);
final ViewableBG fps = new ViewableBG(fpsBG);
try
{
bgView.add(octree);
if (showFPS)
bgView.add(fps);
bgView.addKeyListener(new KeyAdapter() {
@Override
public void keyPressed(KeyEvent event)
{
char k = event.getKeyChar();
if(k == '?')
{
printInteractiveUsage();
}
else if (k == 'w')
{
if (fineMesh != null)
bgView.remove(fineMesh);
if (decMesh != null)
bgView.remove(decMesh);
fineMesh = new ViewableBG(OEMMViewer.meshOEMM(mr.buildWholeMesh()));
//octree.unselectAll();
bgView.add(fineMesh);
}
else if (k == 'n')
{
if (fineMesh != null)
bgView.remove(fineMesh);
if (decMesh != null)
bgView.remove(decMesh);
fineMesh = new ViewableBG(OEMMViewer.meshOEMM(mr.buildMesh(octree.getResultSet())));
//octree.unselectAll();
bgView.add(fineMesh);
}
else if (k == 'o')
{
showOctree = !showOctree;
if (showOctree)
{
bgView.add(octree);
bgView.setCurrentViewable(octree);
}
else
bgView.remove(octree);
}
else if (k == 'a')
{
showAxis = !showAxis;
bgView.setOriginAxisVisible(showAxis);
}
else if (k == 'F')
{
showFPS = !showFPS;
if (showFPS)
{
bgView.add(fps);
bgView.setCurrentViewable(fps);
}
else
bgView.remove(fps);
}
else if (k == 'R')
{
showNonReadableTriangles = !showNonReadableTriangles;
logger.info("Show non-readable triangles: "+showNonReadableTriangles);
mr.setLoadNonReadableTriangles(showNonReadableTriangles);
}
else if (k == 's')
{
TIntHashSet leaves = octree.getResultSet();
Mesh amesh = mr.buildMesh(leaves);
Storage.saveNodes(oemm, amesh, leaves);
}
else if (k == 'S')
{
Mesh amesh = mr.buildWholeMesh();
try
{
MeshWriter.writeObject3D(amesh, "WholeMesh", null);
logger.info("Mesh successfully written into 'WholeMesh' directory");
}
catch(IOException ex)
{
logger.severe("Unable to print mesh into 'WholeMesh' directory");
}
}
else if (k == 'i')
{
if (logger.isLoggable(Level.INFO))
logger.info("Selected: " + octree.getResultSet());
}
else if (k == 'c')
{
TIntHashSet leaves = octree.getResultSet();
if (leaves.size() == 1)
{
int idx = leaves.iterator().next();
OEMM.Node current = oemm.leaves[idx];
Mesh amesh = mr.buildMesh(leaves);
MinAngleFace qproc = new MinAngleFace();
QualityFloat data = new QualityFloat(amesh.getTriangles().size());
data.setQualityProcedure(qproc);
for (Triangle f: amesh.getTriangles())
{
if (f.getGroupId() == idx)
data.compute(f);
}
data.setTarget((float) Math.PI/3.0f);
String outFile = oemm.getDirectory()+File.separator+current.file+"q";
data.writeRawData(outFile);
logger.info("Quality factor written into "+outFile);
}
else
{
logger.severe("Only one node must be selected!");
}
}
else if (k == 'd')
{
if (fineMesh != null)
bgView.remove(fineMesh);
if (decMesh != null)
bgView.remove(decMesh);
Mesh amesh = mr.buildMesh(octree.getResultSet());
HashMap<String, String> opts = new HashMap<String, String>();
opts.put("maxtriangles", Integer.toString(amesh.getTriangles().size() / 100));
new org.jcae.mesh.amibe.algos3d.QEMDecimateHalfEdge(amesh, opts).compute();
String xmlDir = "dec-tmp";
octree.unselectAll();
try
{
MeshWriter.writeObject3D(amesh, xmlDir, "dummy.brep");
AmibeProvider ap = new AmibeProvider(new File(xmlDir));
decMesh = new ViewableFE(ap);
int [] ids = ap.getDomainIDs();
logger.info("Nr. of triangles: "+((FEDomain)ap.getDomain(ids[0])).getNumberOfTria3());
bgView.add(decMesh);
}
catch (Exception ex)
{
ex.printStackTrace();
}
}
else if (k == 'p')
{
int triangles = 0;
int vertices = 0;
for(OEMM.Node current: oemm.leaves)
{
triangles += current.tn;
vertices += current.vn;
}
System.out.println("Total mesh: "+triangles+" triangles and "+vertices+" vertices");
}
else if (k == 'q')
System.exit(0);
}
});
bgView.fitAll();
bgView.setOriginAxisVisible(showAxis);
feFrame.getContentPane().add(bgView);
feFrame.setVisible(true);
}
catch(Exception ex)
{
ex.printStackTrace();
}
}
static final void printInteractiveUsage()
{
System.out.println("Key usage:");
System.out.println(" ?: Display this help message");
System.out.println(" q: Exit");
System.out.println(" w: Display whole mesh");
System.out.println(" n: Display mesh loaded from selected octree nodes");
System.out.println(" R: Toggle display of non-readable triangles");
System.out.println(" o: Toggle display of octree boxes");
System.out.println(" a: Toggle axis display");
System.out.println(" F: Toggle FPS display");
System.out.println(" s: Load selected octree nodes and store them back to disk");
System.out.println(" S: Save whole mesh in Amibe format into 'WholeMesh' directory");
System.out.println(" i: Print selected nodes");
System.out.println(" c: When a single octree node is selected, compute its mesh quality");
System.out.println(" d: Decimate selected octree nodes into dec-tmp directory");
System.out.println(" p: Print mesh statistics");
}
}