mytext3d.java

关于java3D学习的示例程序

import java.applet.Applet;
import java.awt.BorderLayout;
import java.awt.event.*;
import java.awt.GraphicsConfiguration;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.geometry.ColorCube;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import java.awt.geom.Line2D;
import java.awt.geom.QuadCurve2D;
import java.awt.Font;
public class MyText3D extends Applet{
	public BranchGroup createSceneGraph(){
		BranchGroup objRoot=new BranchGroup();
		TransformGroup objTrans=new TransformGroup();
		objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
		objRoot.addChild(objTrans);
		BoundingSphere bounds=new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
		Color3f bgColor=new Color3f(0.0f,0.0f,0.0f);
		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);
		String text="清华大学";
		FontExtrusion fe0=new FontExtrusion();
		QuadCurve2D.Double curve=new QuadCurve2D.Double();
		curve.setCurve(0,0,0.2,0.05,0.4,0);
		FontExtrusion fe1=new FontExtrusion();
		fe1.setExtrusionShape(curve);
		Font3D f3d=new Font3D(new Font("",Font.PLAIN,1),fe0);
		Text3D txt=new Text3D(f3d,text,new Point3f(0.0f,-1.f,-1.f),
		Text3D.ALIGN_CENTER,Text3D.PATH_RIGHT);
		Shape3D sh=new Shape3D();
		Appearance app=new Appearance();
		Material m=new Material();
		m.setDiffuseColor(new Color3f(1.0f,1.0f,0f));
		app.setMaterial(m);
		sh.setGeometry(txt);
		sh.setAppearance(app);
		objTrans.addChild(sh);
		MouseRotate behavior=new MouseRotate();
		behavior.setTransformGroup(objTrans);
		objRoot.addChild(behavior);
		behavior.setSchedulingBounds(bounds);
		return objRoot;
	}
	public MyText3D(){
		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 MyText3D(),400,300);
	}
}