Java tutorial
/* * @(#)AlternateAppearanceScopeTest.java 1.12 02/10/21 13:34:31 * * 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 java.awt.Container; import java.awt.Frame; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.media.j3d.AlternateAppearance; import javax.media.j3d.AmbientLight; import javax.media.j3d.Appearance; import javax.media.j3d.BoundingSphere; import javax.media.j3d.BranchGroup; import javax.media.j3d.Canvas3D; import javax.media.j3d.DirectionalLight; import javax.media.j3d.Group; import javax.media.j3d.Material; import javax.media.j3d.Shape3D; import javax.media.j3d.Transform3D; import javax.media.j3d.TransformGroup; import javax.swing.BoxLayout; import javax.swing.JApplet; import javax.swing.JComboBox; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.border.TitledBorder; import javax.vecmath.Color3f; import javax.vecmath.Point3d; import javax.vecmath.Vector3d; import javax.vecmath.Vector3f; import com.sun.j3d.utils.applet.MainFrame; import com.sun.j3d.utils.behaviors.vp.OrbitBehavior; import com.sun.j3d.utils.geometry.Primitive; import com.sun.j3d.utils.geometry.Sphere; import com.sun.j3d.utils.universe.SimpleUniverse; import com.sun.j3d.utils.universe.ViewingPlatform; public class AlternateAppearanceScopeTest extends JApplet implements ActionListener { Material mat1, altMat; Appearance app, otherApp; JComboBox altAppMaterialColor; JComboBox appMaterialColor; JComboBox altAppScoping; JComboBox override; private Group content1 = null; private Group content2 = null; BoundingSphere worldBounds; AlternateAppearance altApp; Shape3D[] shapes1, shapes2; boolean shape1Enabled = false, shape2Enabled = false; // Globally used colors Color3f white = new Color3f(1.0f, 1.0f, 1.0f); Color3f red = new Color3f(1.0f, 0.0f, 0.0f); Color3f green = new Color3f(0.0f, 1.0f, 0.0f); Color3f blue = new Color3f(0.0f, 0.0f, 1.0f); Color3f[] colors = { white, red, green, blue }; private SimpleUniverse u; public AlternateAppearanceScopeTest() { } public void init() { Container contentPane = getContentPane(); Canvas3D c = new Canvas3D(SimpleUniverse.getPreferredConfiguration()); contentPane.add("Center", c); BranchGroup scene = createSceneGraph(); // SimpleUniverse is a Convenience Utility class u = new SimpleUniverse(c); // add mouse behaviors to the viewingPlatform ViewingPlatform viewingPlatform = u.getViewingPlatform(); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. viewingPlatform.setNominalViewingTransform(); OrbitBehavior orbit = new OrbitBehavior(c, OrbitBehavior.REVERSE_ALL); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); orbit.setSchedulingBounds(bounds); viewingPlatform.setViewPlatformBehavior(orbit); u.addBranchGraph(scene); // Create GUI JPanel p = new JPanel(); BoxLayout boxlayout = new BoxLayout(p, BoxLayout.Y_AXIS); p.add(createScopingPanel()); p.add(createMaterialPanel()); p.setLayout(boxlayout); contentPane.add("South", p); } public void destroy() { u.cleanup(); } BranchGroup createSceneGraph() { BranchGroup objRoot = new BranchGroup(); // Create influencing bounds worldBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center 1000.0); // Extent Transform3D t = new Transform3D(); // move the object upwards t.set(new Vector3f(0.0f, 0.1f, 0.0f)); // Shrink the object t.setScale(0.8); TransformGroup trans = new TransformGroup(t); trans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); trans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); otherApp = new Appearance(); altMat = new Material(); altMat.setCapability(Material.ALLOW_COMPONENT_WRITE); altMat.setDiffuseColor(new Color3f(0.0f, 1.0f, 0.0f)); otherApp.setMaterial(altMat); altApp = new AlternateAppearance(); altApp.setAppearance(otherApp); altApp.setCapability(AlternateAppearance.ALLOW_SCOPE_WRITE); altApp.setCapability(AlternateAppearance.ALLOW_SCOPE_READ); altApp.setInfluencingBounds(worldBounds); objRoot.addChild(altApp); // Build foreground geometry into two groups. We'll // create three directional lights below, one each with // scope to cover the first geometry group only, the // second geometry group only, or both geometry groups. Appearance app1 = new Appearance(); mat1 = new Material(); mat1.setCapability(Material.ALLOW_COMPONENT_WRITE); mat1.setDiffuseColor(new Color3f(1.0f, 0.0f, 0.0f)); app1.setMaterial(mat1); content1 = new SphereGroup(0.05f, // radius of spheres 0.4f, // x spacing 0.2f, // y spacing 3, // number of spheres in X 5, // number of spheres in Y app1, // appearance true); // alt app override = true trans.addChild(content1); shapes1 = ((SphereGroup) content1).getShapes(); content2 = new SphereGroup(0.05f, // radius of spheres .4f, // x spacing 0.2f, // y spacing 2, // number of spheres in X 5, // number of spheres in Y app1, // appearance true); // alt app override = true trans.addChild(content2); shapes2 = ((SphereGroup) content2).getShapes(); // Add lights DirectionalLight light1 = null; light1 = new DirectionalLight(); light1.setEnable(true); light1.setColor(new Color3f(0.2f, 0.2f, 0.2f)); light1.setDirection(new Vector3f(1.0f, 0.0f, -1.0f)); light1.setInfluencingBounds(worldBounds); objRoot.addChild(light1); DirectionalLight light2 = new DirectionalLight(); light2.setEnable(true); light2.setColor(new Color3f(0.2f, 0.2f, 0.2f)); light2.setDirection(new Vector3f(-1.0f, 0.0f, 1.0f)); light2.setInfluencingBounds(worldBounds); objRoot.addChild(light2); // Add an ambient light to dimly illuminate the rest of // the shapes in the scene to help illustrate that the // directional lights are being scoped... otherwise it looks // like we're just removing shapes from the scene AmbientLight ambient = new AmbientLight(); ambient.setEnable(true); ambient.setColor(new Color3f(1.0f, 1.0f, 1.0f)); ambient.setInfluencingBounds(worldBounds); objRoot.addChild(ambient); objRoot.addChild(trans); return objRoot; } JPanel createScopingPanel() { JPanel panel = new JPanel(); panel.setBorder(new TitledBorder("Scopes")); String values[] = { "Scoped Set1", "Scoped Set2", "Universal Scope" }; altAppScoping = new JComboBox(values); altAppScoping.addActionListener(this); altAppScoping.setSelectedIndex(2); panel.add(new JLabel("Scoping")); panel.add(altAppScoping); String enables[] = { "Enabled Set1", "Enabled Set2", "Enabled set1&2", "Disabled set1&2" }; override = new JComboBox(enables); override.addActionListener(this); override.setSelectedIndex(3); panel.add(new JLabel("Alternate Appearance Override")); panel.add(override); return panel; } JPanel createMaterialPanel() { JPanel panel = new JPanel(); panel.setBorder(new TitledBorder("Appearance Attributes")); String colorVals[] = { "WHITE", "RED", "GREEN", "BLUE" }; altAppMaterialColor = new JComboBox(colorVals); altAppMaterialColor.addActionListener(this); altAppMaterialColor.setSelectedIndex(2); panel.add(new JLabel("Alternate Appearance MaterialColor")); panel.add(altAppMaterialColor); appMaterialColor = new JComboBox(colorVals); appMaterialColor.addActionListener(this); appMaterialColor.setSelectedIndex(1); panel.add(new JLabel("Normal Appearance MaterialColor")); panel.add(appMaterialColor); return panel; } public void actionPerformed(ActionEvent e) { Object target = e.getSource(); if (target == altAppMaterialColor) { altMat.setDiffuseColor(colors[altAppMaterialColor.getSelectedIndex()]); } else if (target == altAppScoping) { for (int i = 0; i < altApp.numScopes(); i++) { altApp.removeScope(0); } if (altAppScoping.getSelectedIndex() == 0) { altApp.addScope(content1); } else if (altAppScoping.getSelectedIndex() == 1) { altApp.addScope(content2); } } else if (target == override) { int i; if (override.getSelectedIndex() == 0) { if (!shape1Enabled) { for (i = 0; i < shapes1.length; i++) shapes1[i].setAppearanceOverrideEnable(true); shape1Enabled = true; } if (shape2Enabled) { for (i = 0; i < shapes2.length; i++) shapes2[i].setAppearanceOverrideEnable(false); shape2Enabled = false; } } else if (override.getSelectedIndex() == 1) { if (!shape2Enabled) { for (i = 0; i < shapes2.length; i++) shapes2[i].setAppearanceOverrideEnable(true); shape2Enabled = true; } if (shape1Enabled) { for (i = 0; i < shapes1.length; i++) shapes1[i].setAppearanceOverrideEnable(false); shape1Enabled = false; } } else if (override.getSelectedIndex() == 2) { if (!shape1Enabled) { for (i = 0; i < shapes1.length; i++) shapes1[i].setAppearanceOverrideEnable(true); shape1Enabled = true; } if (!shape2Enabled) { for (i = 0; i < shapes2.length; i++) shapes2[i].setAppearanceOverrideEnable(true); shape2Enabled = true; } } else { if (shape1Enabled) { for (i = 0; i < shapes1.length; i++) shapes1[i].setAppearanceOverrideEnable(false); shape1Enabled = false; } if (shape2Enabled) { for (i = 0; i < shapes2.length; i++) shapes2[i].setAppearanceOverrideEnable(false); shape2Enabled = false; } } } else if (target == appMaterialColor) { mat1.setDiffuseColor(colors[appMaterialColor.getSelectedIndex()]); } } public static void main(String[] args) { Frame frame = new MainFrame(new AlternateAppearanceScopeTest(), 800, 800); } } /* * @(#)SphereGroup.java 1.7 02/04/01 15:04:02 * * 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. */ class SphereGroup extends Group { Shape3D[] shapes; int numShapes = 0; // Constructors public SphereGroup() { // radius x,y spacing x,y count appearance this(0.25f, 0.75f, 0.75f, 5, 5, null, false); } public SphereGroup(Appearance app) { // radius x,y spacing x,y count appearance this(0.25f, 0.75f, 0.75f, 5, 5, app, false); } public SphereGroup(float radius, float xSpacing, float ySpacing, int xCount, int yCount, boolean overrideflag) { this(radius, xSpacing, ySpacing, xCount, yCount, null, overrideflag); } public SphereGroup(float radius, float xSpacing, float ySpacing, int xCount, int yCount, Appearance app, boolean overrideflag) { if (app == null) { app = new Appearance(); Material material = new Material(); material.setDiffuseColor(new Color3f(0.8f, 0.8f, 0.8f)); material.setSpecularColor(new Color3f(0.0f, 0.0f, 0.0f)); material.setShininess(0.0f); app.setMaterial(material); } double xStart = -xSpacing * (double) (xCount - 1) / 2.0; double yStart = -ySpacing * (double) (yCount - 1) / 2.0; Sphere sphere = null; TransformGroup trans = null; Transform3D t3d = new Transform3D(); Vector3d vec = new Vector3d(); double x, y = yStart, z = 0.0; shapes = new Shape3D[xCount * yCount]; for (int i = 0; i < yCount; i++) { x = xStart; for (int j = 0; j < xCount; j++) { vec.set(x, y, z); t3d.setTranslation(vec); trans = new TransformGroup(t3d); addChild(trans); sphere = new Sphere(radius, // sphere radius Primitive.GENERATE_NORMALS, // generate normals 16, // 16 divisions radially app); // it's appearance trans.addChild(sphere); x += xSpacing; shapes[numShapes] = sphere.getShape(); if (overrideflag) shapes[numShapes].setCapability(Shape3D.ALLOW_APPEARANCE_OVERRIDE_WRITE); numShapes++; } y += ySpacing; } } Shape3D[] getShapes() { return shapes; } }