File Doc Category Size Date Package
GeomInfoApp.java API Doc Example 16957 Fri Sep 22 15:08:02 BST 2000 None

GeomInfoApp

java.lang.Object
- java.awt.Component
  - java.awt.Container
    - java.awt.Panel
      - java.applet.Applet

public class GeomInfoApp extends Applet

Fields Summary
Constructors Summary
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);
Methods Summary
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;
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;
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;
public static void main(java.lang.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);