Java tutorial
/* * @(#)AlternateAppearanceBoundsTest.java 1.10 02/10/21 13:34:15 * * 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.BoundingLeaf; import javax.media.j3d.BoundingSphere; import javax.media.j3d.Bounds; 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.JCheckBox; 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.geometry.Primitive; import com.sun.j3d.utils.geometry.Sphere; import com.sun.j3d.utils.universe.SimpleUniverse; public class AlternateAppearanceBoundsTest extends JApplet implements ActionListener { Material mat1, altMat; Appearance app, otherApp; JComboBox altAppMaterialColor; JComboBox appMaterialColor; JCheckBox useBoundingLeaf; JCheckBox override; JComboBox boundsType; private Group content1 = null; AlternateAppearance altApp; Shape3D[] shapes1; boolean boundingLeafOn = 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 Bounds worldBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center 1000.0); // Extent private Bounds smallBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center 0.25); // Extent private Bounds tinyBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), // Center 0.05); // Extent private BoundingLeaf leafBounds = null; private int currentBounds = 2; private Bounds[] allBounds = { tinyBounds, smallBounds, worldBounds }; DirectionalLight light1 = null; // Get the current bounding leaf position private int currentPosition = 0; // Point3f pos = (Point3f)positions[currentPosition].value; private SimpleUniverse u = null; public AlternateAppearanceBoundsTest() { } 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); // This will move the ViewPlatform back a bit so the // objects in the scene can be viewed. u.getViewingPlatform().setNominalViewingTransform(); u.addBranchGraph(scene); // Create GUI JPanel p = new JPanel(); BoxLayout boxlayout = new BoxLayout(p, BoxLayout.Y_AXIS); p.add(createBoundsPanel()); p.add(createMaterialPanel()); p.setLayout(boxlayout); contentPane.add("South", p); } public void destroy() { u.cleanup(); } BranchGroup createSceneGraph() { BranchGroup objRoot = new BranchGroup(); // Create an alternate appearance 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_BOUNDS_WRITE); altApp.setCapability(AlternateAppearance.ALLOW_INFLUENCING_BOUNDS_WRITE); altApp.setInfluencingBounds(worldBounds); objRoot.addChild(altApp); // Build foreground geometry 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 0.15f, // x spacing 0.15f, // y spacing 5, // number of spheres in X 5, // number of spheres in Y app1, // appearance true); // alt app override = true objRoot.addChild(content1); shapes1 = ((SphereGroup) content1).getShapes(); // Add lights 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); light1.setCapability(DirectionalLight.ALLOW_INFLUENCING_BOUNDS_WRITE); light1.setCapability(DirectionalLight.ALLOW_BOUNDS_WRITE); objRoot.addChild(light1); // 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); // Define a bounding leaf leafBounds = new BoundingLeaf(allBounds[currentBounds]); leafBounds.setCapability(BoundingLeaf.ALLOW_REGION_WRITE); objRoot.addChild(leafBounds); if (boundingLeafOn) { altApp.setInfluencingBoundingLeaf(leafBounds); } else { altApp.setInfluencingBounds(allBounds[currentBounds]); } return objRoot; } JPanel createBoundsPanel() { JPanel panel = new JPanel(); panel.setBorder(new TitledBorder("Scopes")); String boundsValues[] = { "Tiny Bounds", "Small Bounds", "Big Bounds" }; boundsType = new JComboBox(boundsValues); boundsType.addActionListener(this); boundsType.setSelectedIndex(2); panel.add(new JLabel("Bounds")); panel.add(boundsType); useBoundingLeaf = new JCheckBox("Enable BoundingLeaf", boundingLeafOn); useBoundingLeaf.addActionListener(this); panel.add(useBoundingLeaf); override = new JCheckBox("Enable App Override", false); override.addActionListener(this); 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) { int i; Object target = e.getSource(); if (target == altAppMaterialColor) { altMat.setDiffuseColor(colors[altAppMaterialColor.getSelectedIndex()]); } else if (target == useBoundingLeaf) { boundingLeafOn = useBoundingLeaf.isSelected(); if (boundingLeafOn) { leafBounds.setRegion(allBounds[currentBounds]); altApp.setInfluencingBoundingLeaf(leafBounds); } else { altApp.setInfluencingBoundingLeaf(null); altApp.setInfluencingBounds(allBounds[currentBounds]); } } else if (target == boundsType) { currentBounds = boundsType.getSelectedIndex(); if (boundingLeafOn) { leafBounds.setRegion(allBounds[currentBounds]); altApp.setInfluencingBoundingLeaf(leafBounds); } else { altApp.setInfluencingBoundingLeaf(null); altApp.setInfluencingBounds(allBounds[currentBounds]); } } else if (target == override) { for (i = 0; i < shapes1.length; i++) shapes1[i].setAppearanceOverrideEnable(override.isSelected()); } else if (target == appMaterialColor) { mat1.setDiffuseColor(colors[appMaterialColor.getSelectedIndex()]); } } public static void main(String[] args) { Frame frame = new MainFrame(new AlternateAppearanceBoundsTest(), 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; } }