/*
* @(#)GeomInfoApp.java 1.1 00/09/22 14:03
*
* Copyright (c) 1996-2000 Sun Microsystems, Inc. All Rights Reserved.
*
* Sun grants you ("Licensee") a non-exclusive, royalty free, license to use,
* modify and redistribute this software in source and binary code form,
* provided that i) this copyright notice and license appear on all copies of
* the software; and ii) Licensee does not utilize the software in a manner
* which is disparaging to Sun.
*
* This software is provided "AS IS," without a warranty of any kind. ALL
* EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND WARRANTIES, INCLUDING ANY
* IMPLIED WARRANTY OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE OR
* NON-INFRINGEMENT, ARE HEREBY EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE
* LIABLE FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING
* OR DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN OR ITS
* LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR FOR DIRECT,
* INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR PUNITIVE DAMAGES, HOWEVER
* CAUSED AND REGARDLESS OF THE THEORY OF LIABILITY, ARISING OUT OF THE USE OF
* OR INABILITY TO USE SOFTWARE, EVEN IF SUN HAS BEEN ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGES.
*
* This software is not designed or intended for use in on-line control of
* aircraft, air traffic, aircraft navigation or aircraft communications; or in
* the design, construction, operation or maintenance of any nuclear
* facility. Licensee represents and warrants that it will not use or
* redistribute the Software for such purposes.
*/
/*
* GeomInfoApp.java demonstrates the use of the GeometryInfo class
* and related classes.
*
* This program creates a car shape (not a fancy car, though) using
* GeometryInfo objects. One GeometryInfo object specifies the side
* of the car using a polygon (not a triangle, nor a quad). The
* GeometryInfo and other classes convert the polygons into a triangle
* strips with normals.
*
* Note that about half of the source code just specifies the
* input data to the GeometryInfo objects. The interesting part
* starts around line 210.
*
* An alternative data set is provided (in the comments) for further
* experimentation - see the tutorial text.
*/
import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.Frame;
import java.awt.event.*;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.geometry.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class GeomInfoApp extends Applet {
float[] createCoordinateData() {
float[] data = new float[69*3]; // ******
int i = 0;
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]= 0.3f; //0
data[i++]= -0.9f; data[i++]= -0.3f; data[i++]= 0.3f; //1
data[i++]= -0.8f; data[i++]= -0.1f; data[i++]= 0.3f; //2
data[i++]= -0.6f; data[i++]= -0.1f; data[i++]= 0.3f; //3
data[i++]= -0.5f; data[i++]= -0.3f; data[i++]= 0.3f; //4
data[i++]= 0.2f; data[i++]= -0.3f; data[i++]= 0.3f; //5
data[i++]= 0.3f; data[i++]= -0.1f; data[i++]= 0.3f; //6
data[i++]= 0.5f; data[i++]= -0.1f; data[i++]= 0.3f; //7
data[i++]= 0.6f; data[i++]= -0.3f; data[i++]= 0.3f; //8
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]= 0.3f; //9
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]= 0.3f; //10
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]= 0.3f; //11
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]= 0.3f; //12
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]= 0.3f; //13
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]= 0.3f; //14
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]= 0.3f; //15
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]= 0.3f; //16
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 0 17
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]=-0.3f; // 1 18
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]=-0.3f; // 2 19
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]=-0.3f; // 3 20
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]=-0.3f; // 4 21
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]=-0.3f; // 5 22
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]=-0.3f; // 6 23
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 7 24
data[i++]= 0.6f; data[i++]= -0.3f; data[i++]=-0.3f; // 8 25
data[i++]= 0.5f; data[i++]= -0.1f; data[i++]=-0.3f; // 9 26
data[i++]= 0.3f; data[i++]= -0.1f; data[i++]=-0.3f; //10 27
data[i++]= 0.2f; data[i++]= -0.3f; data[i++]=-0.3f; //11 28
data[i++]= -0.5f; data[i++]= -0.3f; data[i++]=-0.3f; //12 29
data[i++]= -0.6f; data[i++]= -0.1f; data[i++]=-0.3f; //13 30
data[i++]= -0.8f; data[i++]= -0.1f; data[i++]=-0.3f; //14 31
data[i++]= -0.9f; data[i++]= -0.3f; data[i++]=-0.3f; //15 32
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]=-0.3f; //16 33
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 0 34
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]=-0.3f; // 1 35
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]= 0.3f; // 2 36
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]= 0.3f; // 3 37
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 4 38
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]=-0.3f; // 0 39
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]=-0.3f; // 1 40
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]= 0.3f; // 2 41
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]= 0.3f; // 3 42
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]=-0.3f; // 4 43
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]=-0.3f; // 0 44
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]=-0.3f; // 1 45
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]= 0.3f; // 2 46
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]= 0.3f; // 3 47
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]=-0.3f; // 4 48
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]=-0.3f; // 0 49
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]=-0.3f; // 1 50
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]= 0.3f; // 2 51
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]= 0.3f; // 3 52
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]=-0.3f; // 4 53
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]=-0.3f; // 0 54
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]=-0.3f; // 1 55
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]= 0.3f; // 2 56
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]= 0.3f; // 3 57
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]=-0.3f; // 4 58
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]=-0.3f; // 0 59
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]=-0.3f; // 1 60
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]= 0.3f; // 2 61
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]= 0.3f; // 3 62
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]=-0.3f; // 4 63
System.out.println("end polygon; total vertex count: "+i/3);
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]=-0.3f; // 0 64
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 1 65
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]= 0.3f; // 2 66
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]= 0.3f; // 3 67
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]=-0.3f; // 4 68
System.out.println("end polygon; total vertex count: "+i/3);
// ****** This is the data for the hood, roof, trunk, front and rear glass
// ****** remove the comments markers below (slash-star) and (star slash)
// ****** and add the appropriate comment markers above.
// ****** modification of other lines of code is necessary to use this data
// ****** one line above and two lines below
/*
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 0 35
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]=-0.3f; // 1 36
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]=-0.3f; // 2 37
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]=-0.3f; // 3 38
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]=-0.3f; // 4 39
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]=-0.3f; // 5 40
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]=-0.3f; // 6 41
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 7 42
data[i++]= -1.3f; data[i++]= -0.3f; data[i++]= 0.3f; // 8 43
data[i++]= -1.3f; data[i++]= 0.0f; data[i++]= 0.3f; // 9 44
data[i++]= -1.1f; data[i++]= 0.0f; data[i++]= 0.3f; // 10 45
data[i++]= -0.5f; data[i++]= 0.3f; data[i++]= 0.3f; // 11 46
data[i++]= 0.1f; data[i++]= 0.3f; data[i++]= 0.3f; // 12 47
data[i++]= 0.5f; data[i++]= 0.0f; data[i++]= 0.3f; // 13 48
data[i++]= 1.2f; data[i++]= -0.1f; data[i++]= 0.3f; // 14 49
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]= 0.3f; // 15 50
data[i++]= 1.3f; data[i++]= -0.3f; data[i++]=-0.3f; // 16 51
System.out.println("end polygon; total vertex count: "+i/3);
*/
// ****** end of the alternative polygon data
return data;
}
Appearance createMaterialAppearance(){
Appearance materialAppear = new Appearance();
PolygonAttributes polyAttrib = new PolygonAttributes();
polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
materialAppear.setPolygonAttributes(polyAttrib);
Material material = new Material();
material.setDiffuseColor(new Color3f(1.0f, 0.0f, 0.0f));
materialAppear.setMaterial(material);
return materialAppear;
}
Appearance createWireFrameAppearance(){
Appearance materialAppear = new Appearance();
PolygonAttributes polyAttrib = new PolygonAttributes();
polyAttrib.setPolygonMode(PolygonAttributes.POLYGON_LINE);
materialAppear.setPolygonAttributes(polyAttrib);
ColoringAttributes redColoring = new ColoringAttributes();
redColoring.setColor(1.0f, 0.0f, 0.0f);
materialAppear.setColoringAttributes(redColoring);
return materialAppear;
}
/////////////////////////////////////////////////
//
// create scene graph branch group
//
public BranchGroup createSceneGraph(boolean wireFrame) {
int total = 0;
System.out.println("\n --- geometry debug information --- \n");
float[] coordinateData = null;
coordinateData = createCoordinateData();
int[] stripCount = {17,17,5,5,5,5,5,5,5}; // ******
// int[] stripCount = {17,17,17}; // ******
for(int i=0; i<stripCount.length; i++){
System.out.println("stripCount["+i+"] = "+stripCount[i]);
total +=stripCount[i];
}
if (total != coordinateData.length/3){
System.out.println(" coordinateData vertex count: "+coordinateData.length/3);
System.out.println("stripCount total vertex count: "+total);
}
GeometryInfo gi = new GeometryInfo(GeometryInfo.POLYGON_ARRAY);
gi.setCoordinates(coordinateData);
gi.setStripCounts(stripCount);
Triangulator tr = new Triangulator();
// Triangulator tr = new Triangulator(1);
System.out.println("begin triangulation");
tr.triangulate(gi);
System.out.println(" END triangulation");
gi.recomputeIndices();
NormalGenerator ng = new NormalGenerator();
ng.generateNormals(gi);
gi.recomputeIndices();
Stripifier st = new Stripifier();
st.stripify(gi);
gi.recomputeIndices();
Shape3D part = new Shape3D();
if(wireFrame==true)
part.setAppearance(createWireFrameAppearance());
else
part.setAppearance(createMaterialAppearance());
part.setGeometry(gi.getGeometryArray());
/////////////////////////////
BranchGroup contentRoot = new BranchGroup();
// Create the transform group node and initialize it to the
// identity. Add it to the root of the subgraph.
TransformGroup objSpin = new TransformGroup();
objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
contentRoot.addChild(objSpin);
objSpin.addChild(part);
////////////////////////
LineStripArray lineArray = new LineStripArray(69, LineArray.COORDINATES, stripCount); //*****
// LineStripArray lineArray = new LineStripArray(51, LineArray.COORDINATES, stripCount); //*****
lineArray.setCoordinates(0, coordinateData);
Appearance blueColorAppearance = new Appearance();
ColoringAttributes blueColoring = new ColoringAttributes();
blueColoring.setColor(0.0f, 0.0f, 1.0f);
blueColorAppearance.setColoringAttributes(blueColoring);
LineAttributes lineAttrib = new LineAttributes();
lineAttrib.setLineWidth(2.0f);
blueColorAppearance.setLineAttributes(lineAttrib);
objSpin.addChild(new Shape3D(lineArray, blueColorAppearance));
Alpha rotationAlpha = new Alpha(-1, 16000);
RotationInterpolator rotator =
new RotationInterpolator(rotationAlpha, objSpin);
// a bounding sphere specifies a region a behavior is active
// create a sphere centered at the origin with radius of 1
BoundingSphere bounds = new BoundingSphere();
rotator.setSchedulingBounds(bounds);
objSpin.addChild(rotator);
DirectionalLight lightD = new DirectionalLight();
lightD.setDirection(new Vector3f(0.0f,-0.7f,-0.7f));
lightD.setInfluencingBounds(bounds);
contentRoot.addChild(lightD);
AmbientLight lightA = new AmbientLight();
lightA.setInfluencingBounds(bounds);
contentRoot.addChild(lightA);
Background background = new Background();
background.setColor(1.0f, 1.0f, 1.0f);
background.setApplicationBounds(bounds);
contentRoot.addChild(background);
// Let Java 3D perform optimizations on this scene graph.
// contentRoot.compile();
return contentRoot;
} // end of CreateSceneGraph method of MobiusApp
// Create a simple scene and attach it to the virtual universe
public GeomInfoApp(String[] args) {
setLayout(new BorderLayout());
GraphicsConfiguration config =
SimpleUniverse.getPreferredConfiguration();
Canvas3D canvas3D = new Canvas3D(config);
add("Center", canvas3D);
BranchGroup scene = createSceneGraph(args.length>0);
// SimpleUniverse is a Convenience Utility class
SimpleUniverse simpleU = new SimpleUniverse(canvas3D);
// This will move the ViewPlatform back a bit so the
// objects in the scene can be viewed.
simpleU.getViewingPlatform().setNominalViewingTransform();
simpleU.addBranchGraph(scene);
} // end of GeomInfoApp constructor
// The following allows this to be run as an application
// as well as an applet
public static void main(String[] args) {
System.out.print("GeomInfoApp - Java 3D API demo program\n");
System.out.print("A demonstration of using the GeometryInfo class.\n");
System.out.print("The blue lines show the input geometry - the red ");
System.out.print("geometry was created by the GeometryInfo and other classes.\n");
System.out.print("Running the program without any command line arguments will show a solid object\n");
System.out.print("Supplying any command line argument will show the wireframe.\n");
System.out.print("http://java.sun.com/products/java-media/3D/collateral\n");
Frame frame = new MainFrame(new GeomInfoApp(args), 256, 256);
} // end of main method of MobiusApp
} // end of class GeomInfoApp
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