IRIX 6.5 Applications 2004 May/SGI IRIX 6.5 Applications 2004 May.iso/dist/java3d.idb/usr/demos/java/j3d/programs/examples/PrintCanvas3D/PrintCanvas3D.java.z/PrintCanvas3D.java

Java Source | 2003-08-08 | 10.2 KB | 326 lines

/*
 *    @(#)PrintCanvas3D.java 1.5 02/04/01 15:04:11
 *
 * Copyright (c) 1996-2002 Sun Microsystems, Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * - Redistributions of source code must retain the above copyright
 *   notice, this list of conditions and the following disclaimer.
 *
 * - Redistribution in binary form must reproduce the above copyright
 *   notice, this list of conditions and the following disclaimer in
 *   the documentation and/or other materials provided with the
 *   distribution.
 *
 * Neither the name of Sun Microsystems, Inc. or the names of
 * contributors may be used to endorse or promote products derived
 * from this software without specific prior written permission.
 *
 * This software is provided "AS IS," without a warranty of any
 * kind. ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND
 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT, ARE HEREBY
 * EXCLUDED. SUN AND ITS LICENSORS SHALL NOT BE LIABLE FOR ANY DAMAGES
 * SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
 * DISTRIBUTING THE SOFTWARE OR ITS DERIVATIVES. IN NO EVENT WILL SUN
 * OR ITS LICENSORS BE LIABLE FOR ANY LOST REVENUE, PROFIT OR DATA, OR
 * FOR DIRECT, INDIRECT, SPECIAL, CONSEQUENTIAL, INCIDENTAL OR
 * PUNITIVE DAMAGES, HOWEVER CAUSED AND REGARDLESS OF THE THEORY OF
 * LIABILITY, ARISING OUT OF THE USE OF OR INABILITY TO USE SOFTWARE,
 * EVEN IF SUN HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
 *
 * You acknowledge that Software is not designed,licensed or intended
 * for use in the design, construction, operation or maintenance of
 * any nuclear facility.
 */

import com.sun.j3d.loaders.objectfile.ObjectFile;
import com.sun.j3d.loaders.ParsingErrorException;
import com.sun.j3d.loaders.IncorrectFormatException;
import com.sun.j3d.loaders.Scene;
import javax.swing.*;
import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.Dimension;
import java.awt.GraphicsConfiguration;
import java.awt.Point;
import java.awt.image.BufferedImage;
import java.awt.event.*;
import com.sun.j3d.utils.universe.*;
import javax.media.j3d.*;
import javax.vecmath.*;
import java.io.*;
import com.sun.j3d.utils.behaviors.mouse.*;

public class PrintCanvas3D extends JFrame implements ActionListener {

    private static final boolean spin = false;
    private static final boolean noTriangulate = false;
    private static final boolean noStripify = false;
    private static final double creaseAngle = 60.0;

    private JMenuItem snapshotItem;
    private JMenuItem printItem;
    private JMenuItem quitItem;

    private SimpleUniverse u;
    private Canvas3D canvas3D;
    private OffScreenCanvas3D offScreenCanvas3D;

    private static final int OFF_SCREEN_SCALE = 3;

    private class AppPanel extends JPanel {

    private String filename = null;

    public BranchGroup createSceneGraph(String args[]) {
        // Create the root of the branch graph
        BranchGroup objRoot = new BranchGroup();

        // Create a Transformgroup to scale all objects so they
        // appear in the scene.
        TransformGroup objScale = new TransformGroup();
        Transform3D t3d = new Transform3D();
        t3d.setScale(0.7);
        objScale.setTransform(t3d);
        objRoot.addChild(objScale);

        // Create the transform group node and initialize it to the
        // identity.  Enable the TRANSFORM_WRITE capability so that
        // our behavior code can modify it at runtime.  Add it to the
        // root of the subgraph.
        TransformGroup objTrans = new TransformGroup();
        objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
        objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
        objScale.addChild(objTrans);

        int flags = ObjectFile.RESIZE;
        if (!noTriangulate) flags |= ObjectFile.TRIANGULATE;
        if (!noStripify) flags |= ObjectFile.STRIPIFY;
        ObjectFile f =
        new ObjectFile(flags,
                   (float)(creaseAngle * Math.PI / 180.0));
        Scene s = null;
        try {
        s = f.load(filename);
        }
        catch (FileNotFoundException e) {
        System.err.println(e);
        System.exit(1);
        }
        catch (ParsingErrorException e) {
        System.err.println(e);
        System.exit(1);
        }
        catch (IncorrectFormatException e) {
        System.err.println(e);
        System.exit(1);
        }

        objTrans.addChild(s.getSceneGroup());

        BoundingSphere bounds =
        new BoundingSphere(new Point3d(0.0,0.0,0.0), 100.0);

        if (spin) {
        Transform3D yAxis = new Transform3D();
        Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE,
                        0, 0,
                        4000, 0, 0,
                        0, 0, 0);

        RotationInterpolator rotator =
            new RotationInterpolator(rotationAlpha, objTrans, yAxis,
                         0.0f, (float) Math.PI*2.0f);
        rotator.setSchedulingBounds(bounds);
        objTrans.addChild(rotator);
        } else {
        // Create the rotate behavior node
        MouseRotate behavior = new MouseRotate();
        behavior.setTransformGroup(objTrans);
        objTrans.addChild(behavior);
        behavior.setSchedulingBounds(bounds);

        // Create the zoom behavior node
        MouseZoom behavior2 = new MouseZoom();
        behavior2.setTransformGroup(objTrans);
        objTrans.addChild(behavior2);
        behavior2.setSchedulingBounds(bounds);

        // Create the translate behavior node
        MouseTranslate behavior3 = new MouseTranslate();
        behavior3.setTransformGroup(objTrans);
        objTrans.addChild(behavior3);
        behavior3.setSchedulingBounds(bounds);
        }

        // Set up the background
        Color3f bgColor = new Color3f(0.05f, 0.05f, 0.5f);
        Background bgNode = new Background(bgColor);
        bgNode.setApplicationBounds(bounds);
        objRoot.addChild(bgNode);

        // Set up the ambient light
        Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
        AmbientLight ambientLightNode = new AmbientLight(ambientColor);
        ambientLightNode.setInfluencingBounds(bounds);
        objRoot.addChild(ambientLightNode);

        // Set up the directional lights
        Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
        Vector3f light1Direction  = new Vector3f(4.0f, -7.0f, -12.0f);
        Color3f light2Color = new Color3f(0.3f, 0.3f, 0.4f);
        Vector3f light2Direction  = new Vector3f(-6.0f, -2.0f, -1.0f);

        DirectionalLight light1
        = new DirectionalLight(light1Color, light1Direction);
        light1.setInfluencingBounds(bounds);
        objRoot.addChild(light1);

        DirectionalLight light2
        = new DirectionalLight(light2Color, light2Direction);
        light2.setInfluencingBounds(bounds);
        objRoot.addChild(light2);

        return objRoot;
    }

    private void usage() {
        System.out.println("Usage: java PrintCanvas3D <.obj file>");
        System.exit(0);
    } // End of usage


    // Create the Canvas3D (both on-screen and off-screen)
    private void createCanvas3D(String[] args) {
        if (args.length == 0) {
        usage();
        } else {
        for (int i = 0 ; i < args.length ; i++) {
            if (args[i].startsWith("-")) {
            System.err.println("Argument '" + args[i] + "' ignored.");
            }
            else {
            filename = args[i];
            }
        }
        }

        if (filename == null) {
        usage();
        }

        // Create Canvas3D
        GraphicsConfiguration config =
        SimpleUniverse.getPreferredConfiguration();

        canvas3D = new Canvas3D(config);
        canvas3D.setSize(600, 450);

        // Create a simple scene and attach it to the virtual universe
        BranchGroup scene = createSceneGraph(args);
        u = new SimpleUniverse(canvas3D);
        // This will move the ViewPlatform back a bit so the
        // objects in the scene can be viewed.
        u.getViewingPlatform().setNominalViewingTransform();
        u.addBranchGraph(scene);

        // Create the off-screen Canvas3D object
        offScreenCanvas3D = new OffScreenCanvas3D(config, true);
        // Set the off-screen size based on a scale factor times the
        // on-screen size
        Screen3D sOn = canvas3D.getScreen3D();
        Screen3D sOff = offScreenCanvas3D.getScreen3D();
        Dimension dim = sOn.getSize();
        dim.width *= OFF_SCREEN_SCALE;
        dim.height *= OFF_SCREEN_SCALE;
        sOff.setSize(dim);
        sOff.setPhysicalScreenWidth(sOn.getPhysicalScreenWidth() *
                    OFF_SCREEN_SCALE);
        sOff.setPhysicalScreenHeight(sOn.getPhysicalScreenHeight() *
                     OFF_SCREEN_SCALE);

        // attach the offscreen canvas to the view
        u.getViewer().getView().addCanvas3D(offScreenCanvas3D);
    }

    private AppPanel(String args[]) {
        setLayout(new BorderLayout());

        // Create Canvas3D and scene graph
        createCanvas3D(args);
        add("Center", canvas3D);
    }
    }

    public void actionPerformed (ActionEvent event) {
    Object target = event.getSource();

    if ((target == snapshotItem) ||
        (target == printItem)) {
        Point loc = canvas3D.getLocationOnScreen();
        offScreenCanvas3D.setOffScreenLocation(loc);
        Dimension dim = canvas3D.getSize();
        dim.width *= OFF_SCREEN_SCALE;
        dim.height *= OFF_SCREEN_SCALE;
        BufferedImage bImage =
        offScreenCanvas3D.doRender(dim.width, dim.height);

        if (target == snapshotItem) {
        new ImageDisplayer(bImage);
        }
        else { // (target == printItem)
        new ImagePrinter(bImage).print();
        }
    }
    else if (target == quitItem) {
        u.removeAllLocales();
        System.exit(0);
    }
    }

    private JMenuBar createMenuBar() {
    JMenuBar menuBar = new JMenuBar();
    JMenu fileMenu = new JMenu("File");
    snapshotItem = new JMenuItem("Snapshot");
    snapshotItem.addActionListener(this);
    printItem = new JMenuItem("Print...");
    printItem.addActionListener(this);
    quitItem = new JMenuItem("Quit");
    quitItem.addActionListener(this);
    fileMenu.add(snapshotItem);
    fileMenu.add(printItem);
    fileMenu.add(new JSeparator());
    fileMenu.add(quitItem);
    menuBar.add(fileMenu);
    return menuBar;
    }

    private PrintCanvas3D(String args[]) {
    this.setTitle("Canvas3D Print Test");

    // Create and initialize menu bar
    JPopupMenu.setDefaultLightWeightPopupEnabled(false);
    this.setJMenuBar(createMenuBar());

    // Handle the close event
    this.addWindowListener(new WindowAdapter() {
        public void windowClosing(WindowEvent winEvent) {
        System.exit(0);
        }
    });

    // Add main panel to top-level frame and make it visible
    this.getContentPane().add(new AppPanel(args));
    this.pack();
    this.setVisible(true);
    }

    public static void main(String[] args) {
    new PrintCanvas3D(args);
    }
}