conedisplay.java

里面 有一些java3d编程的例子

import java.applet.Applet;
import java.awt.BorderLayout;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import com.sun.j3d.utils.geometry.Primitive;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.geometry.Cone;
public class ConeDisplay extends Applet
{
	public BranchGroup createBranchGroup()
	{
		BranchGroup branchGroupRoot=new BranchGroup();
		BoundingSphere bounds=new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
		Background bg=new Background(new Color3f(1.0f,1.0f,0.0f));
		bg.setApplicationBounds(bounds);
		branchGroupRoot.addChild(bg);
		DirectionalLight directionalLight=new DirectionalLight(new Color3f(0.0f,0.0f,2.0f),new Vector3f(0.0f,0.0f,-1.0f));
		directionalLight.setInfluencingBounds(bounds);
		branchGroupRoot.addChild(directionalLight);
		
		TransformGroup transformGroup=new TransformGroup();
		transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
		transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		branchGroupRoot.addChild(transformGroup);
		MouseRotate mouseRotate=new MouseRotate(transformGroup);
		mouseRotate.setSchedulingBounds(bounds);
		branchGroupRoot.addChild(mouseRotate);
		
		MouseZoom mouseZoom=new MouseZoom(transformGroup);
		mouseZoom.setSchedulingBounds(bounds);
		branchGroupRoot.addChild(mouseZoom);
		
		MouseTranslate mouseTranslate=new MouseTranslate(transformGroup);
		mouseTranslate.setSchedulingBounds(bounds);
		branchGroupRoot.addChild(mouseTranslate);
		
		Appearance app=new Appearance();
		Material material=new Material();
		material.setDiffuseColor(new Color3f(0.0f,0.0f,2.0f));
		app.setMaterial(material);
		Cone cone=new Cone(0.5f,1.0f,app);
		transformGroup.addChild(cone);
		branchGroupRoot.compile();
		return branchGroupRoot;
		
	}
	public ConeDisplay()
	{
		this.setLayout(new BorderLayout());
		Canvas3D c=new Canvas3D(SimpleUniverse.getPreferredConfiguration());
		this.add(c,"Center");
		SimpleUniverse u=new SimpleUniverse(c);
		u.getViewingPlatform().setNominalViewingTransform();
		u.addBranchGraph(this.createBranchGroup());
	}
	public static void main(String[] args)
	{
		new MainFrame(new ConeDisplay(),300,300);
	}
}