实验一
实验目的：生成彩色立方体
实验代码：//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.*;
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);
//pile();
return objRoot;
}
public ColorCube1() {
setLayout(new BorderLayout());
Canvas3D c=new Canvas3D(null);
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);
}
}
运行截图：。