point3.java

用于java3d的初级测试。由于本人是java3d新手。所以没有注示每段代码的具体用途。

 import java.applet.Applet;import java.awt.BorderLayout;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame;import com.sun.j3d.utils.universe.*;import javax.media.j3d.*;import javax.vecmath.*;public class Point3 extends Applet {  public BranchGroup createSceneGraph() {    BranchGroup objRoot = new BranchGroup();    float vert[] = {         .8f, 0.8f,0.0f,        -0.8f, 0.8f,0.0f,        0.5f, 0.0f,0.0f,        -0.5f, 0.0f,0.0f,        -0.8f,-0.8f,0.0f,        0.8f,-0.8f,0.0f,       };    float color[] = {        0.0f,0.5f,1.0f,        0.5f,0.0f,1.0f,        0.0f,0.8f,2.0f,        1.0f,0.0f,0.3f,        0.0f,1.0f,0.3f,        0.3f,0.8f,0.0f,      };        Shape3D shape = new Shape3D();        int[] index={ 1 , 2 , 3 , 4 };        int VertexCount=4;        IndexedPointArray point = new IndexedPointArray(6,                             IndexedPointArray.COORDINATES|                            IndexedPointArray.COLOR_3,                            VertexCount);          point.setCoordinates(0,vert);          point.setColors(0,color);          point.setCoordinateIndices(0,index);          point.setColorIndices(0,index);        PointAttributes pa = new PointAttributes();          pa.setPointSize(20.0f);          pa.setPointAntialiasingEnable(true);        Appearance ap = new Appearance();         ap.setPointAttributes(pa);         shape.setGeometry(point);        shape.setAppearance(ap);        objRoot.addChild(shape);        objRoot.compile();        return objRoot;    }    public Point3() {        setLayout(new BorderLayout());   
GraphicsConfiguration config=SimpleUniverse.getPreferredConfiguration(); 
     Canvas3D c = new Canvas3D(config);        add("Center", c);        BranchGroup scene = createSceneGraph();        SimpleUniverse u = new SimpleUniverse(c);        u.getViewingPlatform().setNominalViewingTransform();        u.addBranchGraph(scene);    }    public static void main(String[] args) {        new MainFrame(new Point3(), 400,400);    }}