mycolorcube.java

java 3d 系列源码

//MyColorCube.java
import java.applet.Applet;					//可以插入html
import java.awt.BorderLayout;				//窗口采用BorderLayout方式布局
import com.sun.j3d.utils.applet.MainFrame;	//application
import com.sun.j3d.utils.geometry.ColorCube;//调用生成ColorCube的Utility
import com.sun.j3d.utils.geometry.Primitive;
import com.sun.j3d.utils.universe.*;		//观测位置的设置
import javax.media.j3d.*;					//核心类
import javax.vecmath.*;						//矢量计算
import com.sun.j3d.utils.behaviors.mouse.*;
import java.awt.GraphicsConfiguration;
public class MyColorCube extends Applet 
{
	public BranchGroup createSceneGraph() 
	{
    	BranchGroup objRoot=new BranchGroup();
    			//BranchGroup的一个对象objRoot（放置背景、灯光）
    
		BoundingSphere bounds=new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);//有效范围
    
    	Color3f bgColor=new Color3f(0.0f,0.0f,0.0f);
    			//背景颜色
    	Background bg=new Background(bgColor);
      	bg.setApplicationBounds(bounds);
    	objRoot.addChild(bg);
    
    	Color3f directionalColor=new Color3f(1.f,1.f,1.f);
    	Vector3f vec=new Vector3f(0.f,0.f,-1.0f);
    	DirectionalLight directionalLight=new DirectionalLight(directionalColor,vec);
    	directionalLight.setInfluencingBounds(bounds);
    	objRoot.addChild(directionalLight);
    
    	Appearance app=new Appearance();
    			//外观材质
    	Material material=new Material();
    			//圆锥颜色
      	//material.setEmissiveColor(new Color3f(1.0f,1.0f,0.0f));
      	material.setDiffuseColor(new Color3f(1.0f,1.0f,0.0f));
      			//辐射光效果
    	app.setMaterial(material);
    	ColorCube cube = new ColorCube(.4f);
        
    	TransformGroup objTrans=new TransformGroup();
    	Transform3D	y = new Transform3D();
    	y.rotY(Math.PI/6);
    	objTrans.setTransform(y);
      	objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
      	objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    	objRoot.addChild(objTrans);
    
    	MouseRotate behavior = new MouseRotate();
  		behavior.setTransformGroup(objTrans);
        objRoot.addChild(behavior);
        behavior.setSchedulingBounds(bounds);

        MouseZoom behavior2 = new MouseZoom();
        behavior2.setTransformGroup(objTrans);
        objRoot.addChild(behavior2);
        behavior2.setSchedulingBounds(bounds);

        MouseTranslate behavior3 = new MouseTranslate();
        behavior3.setTransformGroup(objTrans);
        objRoot.addChild(behavior3);
        behavior3.setSchedulingBounds(bounds);
        
    	objTrans.addChild(cube);
    
    	//objRoot.compile();
    	return objRoot;
  	}
  
  	public MyColorCube() 
  	{
    	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 MyColorCube(),300,300);
  	}
}//end of MyCone.java