textc.java

java 3d 系列源码

import java.applet.Applet;
import java.awt.*;
import java.awt.event.*;
import com.sun.j3d.utils.applet.MainFrame;
import com.sun.j3d.utils.universe.*;
import com.sun.j3d.utils.image.TextureLoader;
import com.sun.j3d.utils.geometry.Cylinder;
import javax.media.j3d.*;
import javax.vecmath.*;

public class TextC extends Applet {
  
    private java.net.URL texImage = null;

    private SimpleUniverse u = null;

 	public BranchGroup createSceneGraph() {
		// Create the root of the branch graph
		BranchGroup objRoot = new BranchGroup();
	    BoundingSphere bounds =new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

		// Set up the background Color
    	Color3f bgColor = new Color3f(1.0f, 1.0f, 1.0f);
    	Background bg = new Background(bgColor);
    	bg.setApplicationBounds(bounds);
    	objRoot.addChild(bg);

		Transform3D t3D = new Transform3D();
		t3D.setTranslation(new Vector3f(0.0f, -0.2f, -3.0f));
		TransformGroup objMove = new TransformGroup(t3D);
		objRoot.addChild(objMove);
		
		// Create the transform group node and initialize it to the 
		// identity. Add it to the root of the subgraph.
		TransformGroup objSpin = new TransformGroup();
		objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
		objMove.addChild(objSpin);

		Appearance textAppear = new Appearance();

		PolygonAttributes polyAttrib = new PolygonAttributes();
		polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
		textAppear.setPolygonAttributes(polyAttrib);

		TexCoordGeneration tcg = new TexCoordGeneration(TexCoordGeneration.OBJECT_LINEAR,
														TexCoordGeneration.TEXTURE_COORDINATE_2);
		textAppear.setTexCoordGeneration(tcg);

		String filename = "brick.jpg";
		
		TextureLoader myTL = new TextureLoader(texImage, this);

		Texture myTex = myTL.getTexture();


		textAppear.setTexture(myTex);

		
		// Create a simple shape leaf node, add it to the scene graph.
		//         Font3D font3D = new Font3D(new Font("Helvetica", Font.PLAIN, 1),
		//                                  new FontExtrusion());
		Font3D font3D = new Font3D(new Font("宋体", Font.PLAIN, 1),
								   new FontExtrusion());
		Text3D textGeom = new Text3D(font3D, new String("Java 3D"));
		textGeom.setAlignment(Text3D.ALIGN_CENTER);
		Shape3D textShape = new Shape3D();
		textShape.setGeometry(textGeom);
		textShape.setAppearance(textAppear);
		objSpin.addChild(textShape);

		return objRoot;
	} // end of CreateSceneGraph method



    public TextC() {
    }

    public TextC(java.net.URL url) {
        texImage = url;
    }

    public void init() {
        if (texImage == null) {
  	    // the path to the image for an applet
  	    try {
	        texImage = new java.net.URL(getCodeBase().toString() +
					    "../misc/brick.jpg");
	    }
	    catch (java.net.MalformedURLException ex) {
	        System.out.println(ex.getMessage());
		System.exit(1);
	    }
	}
	setLayout(new BorderLayout());
        GraphicsConfiguration config =
           SimpleUniverse.getPreferredConfiguration();

        Canvas3D c = new Canvas3D(config);
	add("Center", c);

	// Create a simple scene and attach it to the virtual universe
	BranchGroup scene = createSceneGraph();
	u = new SimpleUniverse(c);

        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
	u.getViewingPlatform().setNominalViewingTransform();

	u.addBranchGraph(scene);
    }

    public void destroy() {
	u.removeAllLocales();
    }

    //
    // The following allows TextureImage to be run as an application
    // as well as an applet
    //
    public static void main(String[] args) {
        java.net.URL url = null;
        if (args.length > 0) {
	    try {
	        url = new java.net.URL("file:" + args[0]);
	    }
	    catch (java.net.MalformedURLException ex) {
	        System.out.println(ex.getMessage());
		System.exit(1);
	    }
	}
	else {
	    // the path to the image for an application
	    try {
	        url = new java.net.URL("file:../misc/brick.jpg");
	    }
	    catch (java.net.MalformedURLException ex) {
	        System.out.println(ex.getMessage());
		System.exit(1);
	    }
	}
	new MainFrame(new TextC(url), 512, 200);
    }

}