colorcube1.java

来自「java 3d 系列源码」· Java 代码 · 共 83 行

//ColorCube1.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 ColorCube1 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
        
    TransformGroup objTrans=new TransformGroup();
    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);
          
    
    
    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(1.f,1.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 cone=new ColorCube(0.2);
    objTrans.addChild(cone);
    
    //objRoot.compile();
    return objRoot;
  }
  
  public ColorCube1() {
    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 ColorCube1(),400,300);
  }
}