trianglestriparraytest.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.geometry.Primitive;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.behaviors.mouse.*;
import javax.media.j3d.*;
import javax.vecmath.*;
public class TriangleStripArrayTest extends Applet
{
	public BranchGroup createBranchGroup()
	{
		BranchGroup branchGroup=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);
		branchGroup.addChild(bg);
		DirectionalLight light=new DirectionalLight(new Color3f(1.0f,0.0f,0.0f),new Vector3f(0.0f,0.0f,-1.0f));
		light.setInfluencingBounds(bounds);
		branchGroup.addChild(light);
		TransformGroup trans=new TransformGroup();
		trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
		trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		branchGroup.addChild(trans);
		MouseRotate mouseRotate=new MouseRotate(trans);
		mouseRotate.setSchedulingBounds(bounds);
		branchGroup.addChild(mouseRotate);
		MouseZoom mouseZoom=new MouseZoom(trans);
		mouseZoom.setSchedulingBounds(bounds);
		branchGroup.addChild(mouseZoom);
		MouseTranslate mouseTranslate=new MouseTranslate(trans);
		mouseTranslate.setSchedulingBounds(bounds);
		branchGroup.addChild(mouseTranslate);
		trans.addChild(new ShapeTriangleStripArray());
		branchGroup.compile();
		return branchGroup;
	}
	public TriangleStripArrayTest()
	{
		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 TriangleStripArrayTest(),300,300);
	}
}
class ShapeTriangleStripArray extends Shape3D
{
	public ShapeTriangleStripArray()
	{
		int vertexesCount=12;
		int stripCount[]=new int[3];
		float vertexes[]={
		-0.6f,0.6f,0.0f,	-0.6f,-0.6f,0.2f,
		-0.2f,0.6f,-0.2f,	-0.2f,-0.4f,0.2f,
		0.0f,0.3f,-0.2f,	0.0f,-0.3f,0.2f,
		0.2f,0.7f,0.0f,		0.2f,0.2f,0.3f,
		0.5f,0.6f,-0.3f,	0.6f,-0.2f,0.0f,
		0.8f,0.6f,0.2f,		0.8f,-0.3f,0.3f
	};
	float colors[]={
		0.0f,0.5f,1.0f,		0.0f,0.5f,1.0f,
		0.0f,0.8f,2.0f,		1.0f,0.0f,0.3f,
		0.0f,1.0f,0.5f,		0.9f,1.0f,0.0f,
		0.5f,0.0f,1.0f,		0.0f,0.5f,1.0f,
		1.0f,0.5f,0.0f,		1.0f,0.0f,0.5f,
		1.0f,0.8f,0.0f,		1.0f,0.5f,0.0f
	};
	stripCount[0]=4;
	stripCount[1]=4;
	stripCount[2]=4;
	TriangleStripArray triangleStripArray=new TriangleStripArray(vertexesCount,TriangleStripArray.COORDINATES|TriangleStripArray.COLOR_3,stripCount);
	triangleStripArray.setCoordinates(0,vertexes);
	triangleStripArray.setColors(0,colors);
	PolygonAttributes att=new PolygonAttributes();
	att.setCullFace(PolygonAttributes.CULL_NONE);
	Appearance app=new Appearance();
	app.setPolygonAttributes(att);
	this.setGeometry(triangleStripArray);
	this.setAppearance(app);
	}
}