/***************************************************************************** * J3D.org Copyright (c) 2000 * Java Source * * This source is licensed under the GNU LGPL v2.1 * Please read http://www.gnu.org/copyleft/lgpl.html for more information * * This software comes with the standard NO WARRANTY disclaimer for any * purpose. Use it at your own risk. If there's a problem you get to fix it. * ****************************************************************************/ // Standard imports import java.awt.*; import java.awt.event.*; import javax.media.j3d.*; import javax.vecmath.*; // Application Specific imports import org.j3d.geom.Torus; import org.j3d.ui.image.JPEGSequenceObserver; import org.j3d.ui.navigation.NavigationStateListener; import org.j3d.ui.navigation.MouseViewHandler; import org.j3d.ui.navigation.NavigationStateManager; /** * Demonstration of a sequence of image captures to JPEG images. * * As the sequence process requires continuously rendering frames to trigger * this you will need to either press the "capture now" button or navigate * around the world. * * @author Justin Couch * @version $Revision: 1.1 $ */ public class JpegSequenceDemo extends DemoFrame implements ActionListener, ItemListener, NavigationStateListener { private static final double BACK_CLIP_DISTANCE = 100.0; /** The navigation information handler */ private MouseViewHandler viewHandler; /** The current navigation state we are in */ private int navigationState; /** A label telling us what state we are in */ private Label navTypeLabel; /** The observer used to do the image capture */ private JPEGSequenceObserver imageHandler; /** Text field with the directory name in it */ private TextField directory; /** Text field with the file name in it */ private TextField filename; /** The button to say "capture now" */ private Button capture; /** The button to say "reset the observer" now */ private Button reset; /** Enable checkbox */ private Checkbox enable; public JpegSequenceDemo() { super("JpegSequenceDemo test window"); navTypeLabel = new Label("Navigation state: "); add(navTypeLabel, BorderLayout.SOUTH); viewHandler = new MouseViewHandler(); viewHandler.setCanvas(canvas); viewHandler.setButtonNavigation(MouseEvent.BUTTON1_MASK, FLY_STATE); viewHandler.setButtonNavigation(MouseEvent.BUTTON2_MASK, TILT_STATE); viewHandler.setButtonNavigation(MouseEvent.BUTTON3_MASK, PAN_STATE); NavigationStateManager nav_mgr = new NavigationStateManager(canvas); nav_mgr.setNavigationStateListener(this); nav_mgr.setMouseHandler(viewHandler); Panel p1 = new Panel(new GridLayout(3, 1)); Panel p2 = new Panel(new BorderLayout()); Label l1 = new Label("Output dir: "); directory = new TextField(System.getProperty("user.dir")); p2.add(l1, BorderLayout.WEST); p2.add(directory, BorderLayout.CENTER); Panel p3 = new Panel(new BorderLayout()); Label l2 = new Label("Output file: "); filename = new TextField("test"); p3.add(l2, BorderLayout.WEST); p3.add(filename, BorderLayout.CENTER); Panel p4 = new Panel(new GridLayout(1, 3)); capture = new Button("Capture Now"); capture.addActionListener(this); reset = new Button("Reset"); reset.addActionListener(this); enable = new Checkbox("Enable"); enable.addItemListener(this); p4.add(capture); p4.add(reset); p4.add(enable); p1.add(p2); p1.add(p3); p1.add(p4); add(p1, BorderLayout.NORTH); buildScene(); imageHandler = new JPEGSequenceObserver(); canvas.addCaptureObserver(imageHandler); } // Methods for ActionListener /** * Process an action event (probably from the capture button) * * @param evt The event that caused this method to be called */ public void actionPerformed(ActionEvent evt) { Object src = evt.getSource(); if(src == capture) { // force the re-render as we know that the content does not // render usually because it is static canvas.getView().repaint(); } else { // This is the reset canvas.removeCaptureObserver(imageHandler); imageHandler = new JPEGSequenceObserver(); canvas.addCaptureObserver(imageHandler); } } // Method for ItemListener /** * Process an item listener event. Used to handle the enable and * disable of the observer. * * @param evt The event that caused this method to be called */ public void itemStateChanged(ItemEvent evt) { int state = evt.getStateChange(); if(state == ItemEvent.SELECTED) { try { // Get the filename and then String file = filename.getText(); if(file != null) file = file.trim(); String dir = directory.getText(); if(dir != null) dir = dir.trim(); imageHandler.setFileDetails(dir, file); } catch(IllegalStateException ise) { navTypeLabel.setText("Oops, it seems like you tried to " + "capture again without a reset"); } catch(IllegalArgumentException iae) { navTypeLabel.setText(iae.getMessage()); } } imageHandler.setEnabled(state == ItemEvent.SELECTED); } // Methods for NavigationStateListener /** * Callback to ask the listener what navigation state it thinks it is in. * * @return the current navigation state */ public int getNavigationState() { return navigationState; } /** * Set the navigation state to the new state for display * * @param state The new state to be */ public void setNavigationState(int state) { String label = null; switch(state) { case WALK_STATE: label = "Navigation state: Walk"; break; case PAN_STATE: label = "Navigation state: Pan"; break; case TILT_STATE: label = "Navigation state: Tilt"; break; case FLY_STATE: label = "Navigation state: Fly"; break; case EXAMINE_STATE: label = "Navigation state: Examine"; break; case NO_STATE: label = "Navigation state: "; break; } if(label != null) navTypeLabel.setText(label); } /** * Build the scenegraph for the canvas */ private void buildScene() { Color3f ambientBlue = new Color3f(0.0f, 0.02f, 0.5f); Color3f white = new Color3f(1, 1, 1); Color3f black = new Color3f(0.0f, 0.0f, 0.0f); Color3f blue = new Color3f(0.00f, 0.20f, 0.80f); Color3f specular = new Color3f(0.7f, 0.7f, 0.7f); VirtualUniverse universe = new VirtualUniverse(); Locale locale = new Locale(universe); BranchGroup view_group = new BranchGroup(); BranchGroup world_object_group = new BranchGroup(); ViewPlatform camera = new ViewPlatform(); TransformGroup view_tg = new TransformGroup(); view_tg.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); view_tg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); view_tg.setCapability(TransformGroup.ALLOW_LOCAL_TO_VWORLD_READ); view_tg.addChild(camera); view_group.addChild(view_tg); Point3d origin = new Point3d(0, 0, 0); BoundingSphere light_bounds = new BoundingSphere(origin, BACK_CLIP_DISTANCE); DirectionalLight headlight = new DirectionalLight(); headlight.setColor(white); headlight.setInfluencingBounds(light_bounds); view_group.addChild(headlight); // Now the geometry. Let's just add a couple of the basic primitives // for testing. Material blueMaterial = new Material(ambientBlue, black, blue, specular, 75.0f); blueMaterial.setLightingEnable(true); Appearance blueAppearance = new Appearance(); blueAppearance.setMaterial(blueMaterial); PolygonAttributes pa = new PolygonAttributes(); pa.setPolygonMode(pa.POLYGON_LINE); pa.setCullFace(pa.CULL_NONE); blueAppearance.setPolygonAttributes(pa); Transform3D torus_angle = new Transform3D(); torus_angle.setRotation(new AxisAngle4d(1, 0, 0, 0.78)); torus_angle.setTranslation(new Vector3d(0, 0, -4)); TransformGroup torus_tg = new TransformGroup(torus_angle); Shape3D torus = new Torus(0.125f, 0.5f, blueAppearance); torus_tg.addChild(torus); world_object_group.addChild(torus_tg); world_object_group.compile(); // Add them to the locale locale.addBranchGraph(view_group); locale.addBranchGraph(world_object_group); PhysicalBody body = new PhysicalBody(); PhysicalEnvironment env = new PhysicalEnvironment(); View view = new View(); view.setBackClipDistance(BACK_CLIP_DISTANCE); view.setPhysicalBody(body); view.setPhysicalEnvironment(env); view.addCanvas3D(canvas); view.attachViewPlatform(camera); viewHandler.setViewInfo(view, view_tg); viewHandler.setNavigationSpeed(1.0f); } public static void main(String[] argv) { JpegSequenceDemo demo = new JpegSequenceDemo(); demo.setVisible(true); } }