Example usage for javax.media.j3d Group ALLOW_CHILDREN_EXTEND

List of usage examples for javax.media.j3d Group ALLOW_CHILDREN_EXTEND

Introduction

In this page you can find the example usage for javax.media.j3d Group ALLOW_CHILDREN_EXTEND.

Prototype

int ALLOW_CHILDREN_EXTEND

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Document

Specifies that this Group node allows adding new children.

Usage

From source file:ExText.java

public Group buildScene() {
    // Get the current font attributes
    Font font = (Font) fonts[currentFont].value;
    String textString = (String) fonts[currentFont].name;

    // Turn on the example headlight
    setHeadlightEnable(true);//from  w w  w.  j a  va  2s .c o  m

    // Build the scene group
    scene = new Group();
    scene.setCapability(Group.ALLOW_CHILDREN_EXTEND);
    scene.setCapability(Group.ALLOW_CHILDREN_WRITE);

    // Build a branch group to hold the text shape
    // (this allows us to remove the text shape later,
    // change it, then put it back, all under menu control)
    textGroup = new BranchGroup();
    textGroup.setCapability(BranchGroup.ALLOW_DETACH);
    scene.addChild(textGroup);

    // BEGIN EXAMPLE TOPIC
    // Create a font extrusion with a default extrusion shape
    extrusion = new FontExtrusion();

    // Define a 3D font with a default extrusion path
    Font3D font3d = new Font3D(font, extrusion);

    // Build 3D text geometry using the 3D font
    Text3D tex = new Text3D();
    tex.setFont3D(font3d);
    tex.setString(textString);
    tex.setAlignment(Text3D.ALIGN_CENTER);

    // Define a generic shaded appearance
    Appearance app = new Appearance();
    Material mat = new Material();
    mat.setLightingEnable(true);
    app.setMaterial(mat);

    // Assemble geometry and appearance into a shape
    // and add it to the scene
    shape = new Shape3D(tex, app);
    shape.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE);
    textGroup.addChild(shape);
    // END EXAMPLE TOPIC

    return scene;
}

From source file:edu.uci.ics.jung.visualization3d.VisualizationViewer.java

public BranchGroup createSceneGraph(final Canvas3D canvas) {

    objRoot = new BranchGroup();
    objRoot.setCapability(Group.ALLOW_CHILDREN_EXTEND);
    objRoot.setCapability(Group.ALLOW_CHILDREN_WRITE);

    TransformGroup objScale = new TransformGroup();
    Transform3D t3d = new Transform3D();
    //      t3d.setScale(0.05);
    objScale.setTransform(t3d);/*from w w  w  . ja va  2  s  .c  om*/
    objRoot.addChild(objScale);

    Transform3D tt = new Transform3D();
    tt.setScale(.05);
    tt.setTranslation(new Vector3f(0, 0, -30.f));
    objTrans = new TransformGroup(tt);
    objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    objTrans.setCapability(TransformGroup.ALLOW_CHILDREN_EXTEND);
    objScale.addChild(objTrans);
    //      objRoot.addChild(objTrans);

    // Create Colors, Materials,  and Appearances.
    Appearance look = new Appearance();
    Color3f objColor = new Color3f(0.7f, 0.7f, 0.7f);
    Color3f black = new Color3f(0.f, 0.f, 0.f);
    Color3f white = new Color3f(1.0f, 1.0f, 0.6f);
    Color3f gray = new Color3f(.2f, .2f, .2f);
    Color3f red = new Color3f(1.0f, 0, 0);
    Color3f yellow = new Color3f(1, 1, 0);

    Material objMaterial = new Material(objColor, black, objColor, white, 100.0f);
    Material blackMaterial = new Material(objColor, black, black, objColor, 10.0f);
    Material whiteMaterial = new Material(white, white, white, white, 100.0f);
    Material grayMaterial = new Material(gray, black, gray, gray, 100.0f);

    Material redMaterial = new Material(red, black, red, red, 100.0f);
    Material yellowMaterial = new Material(yellow, black, yellow, yellow, 100);

    look.setMaterial(new Material(objColor, black, objColor, white, 100.0f));
    Appearance blackLook = new Appearance();
    blackLook.setMaterial(blackMaterial);

    Appearance whiteLook = new Appearance();
    whiteLook.setMaterial(whiteMaterial);

    Appearance grayLook = new Appearance();
    grayLook.setMaterial(grayMaterial);
    grayLook.setCapability(Appearance.ALLOW_MATERIAL_READ);
    grayLook.setCapability(Appearance.ALLOW_MATERIAL_WRITE);

    final Appearance redLook = new Appearance();
    redLook.setMaterial(redMaterial);
    //      vertexLook = redLook;

    Appearance objLook = new Appearance();
    objLook.setMaterial(objMaterial);
    grayLook = objLook;
    final Appearance yellowLook = new Appearance();
    yellowLook.setMaterial(yellowMaterial);
    Bounds bounds = new BoundingSphere(new Point3d(), 300);

    MouseRotate behavior1 = new MouseRotate();
    behavior1.setTransformGroup(objTrans);
    objTrans.addChild(behavior1);
    behavior1.setSchedulingBounds(bounds);

    MouseWheelZoom behavior2 = new MouseWheelZoom();
    behavior2.setTransformGroup(objTrans);
    //      behavior2.setFactor(10);
    objTrans.addChild(behavior2);
    behavior2.setSchedulingBounds(bounds);

    MouseTranslate behavior3 = new MouseTranslate();
    behavior3.setTransformGroup(objTrans);
    objTrans.addChild(behavior3);
    behavior3.setSchedulingBounds(bounds);

    PickTranslateBehavior ptb = new PickTranslateBehavior(objRoot, canvas, bounds, PickTool.GEOMETRY);
    ptb.setSchedulingBounds(bounds);
    //      objTrans.addChild(ptb);
    ptb.setupCallback(new PickingCallback() {

        public void transformChanged(int type, TransformGroup tg) {
            if (tg == null)
                return;
            Transform3D t3d = new Transform3D();
            tg.getTransform(t3d);
            //            System.err.println(tg+" transformChanged \n"+t3d);
            Point3f p1 = new Point3f();
            V v = vertexMap.getKey(tg);
            //            Transform3D lvw = new Transform3D();
            //            tg.getLocalToVworld(lvw);
            //            System.err.println("lvw = \n"+lvw);
            //            lvw.invert();
            //            System.err.println("invert lvw = \n"+lvw);
            Point3f p0 = layout.transform(v);
            //            Transform3D vwip = new Transform3D();
            //            canvas.getVworldToImagePlate(vwip);
            //            System.err.println("vwip=\n"+vwip);
            //            t3d.mul(lvw);
            t3d.transform(p1);
            //            scale.transform(p1);
            System.err.println(
                    "change location for vertex " + v + ", transformGroup " + tg + " from " + p0 + " to " + p1);
            //            p1.set(p1.getX()*2,p1.getY()*2,p1.getZ()*2);
            //            layout.setLocation(v, p1);

        }
    });

    PickSphereBehavior psb = new PickSphereBehavior(objRoot, canvas, bounds);

    PickVertexBehavior pvb = new PickVertexBehavior(objRoot, canvas, bounds,
            renderContext.getPickedVertexState());
    objTrans.addChild(pvb);
    pvb.addChangeListener(new ChangeListener() {

        public void stateChanged(ChangeEvent e) {
            for (V v : graph.getVertices()) {
                VertexGroup<V> vg = vertexMap.get(v);
                Appearance look = redLook;
                if (renderContext.getPickedVertexState().isPicked(v)) {
                    look = yellowLook;
                }
                Node node = vg.getShape();
                if (node instanceof Primitive) {
                    ((Primitive) node).setAppearance(look);
                }
            }

        }
    });

    //Shine it with two colored lights.
    Color3f lColor1 = new Color3f(.5f, .5f, .5f);
    Color3f lColor2 = new Color3f(1.0f, 1.0f, 1.0f);
    Vector3f lDir2 = new Vector3f(-1.0f, 0.0f, -1.0f);
    DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2);
    AmbientLight ambient = new AmbientLight(lColor1);
    lgt2.setInfluencingBounds(bounds);
    ambient.setInfluencingBounds(bounds);
    objRoot.addChild(lgt2);
    objRoot.addChild(ambient);

    // Let Java 3D perform optimizations on this scene graph.
    objRoot.compile();

    //      VisRunner runner = new VisRunner((IterativeContext)elayout);
    //      runner.relax();

    return objRoot;
}

From source file:J3dSwingFrame.java

/**
 * Create the basic universe and all of the supporting infrastructure that
 * is needed by a J3D application. The default setup just uses a single
 * local located at the origin.//from w w w . j av a2s.  c  o  m
 */
public UniverseManager() {
    locale = new Locale(this);

    view_group = new BranchGroup();
    view_group.setCapability(Group.ALLOW_CHILDREN_EXTEND);

    world_object_group = new BranchGroup();
    world_object_group.setCapability(Group.ALLOW_CHILDREN_EXTEND);
}

From source file:J3dSwingFrame.java

public Camera() {
    hud_group = new Group();
    hud_group.setCapability(Group.ALLOW_CHILDREN_EXTEND);

    platform = new ViewPlatform();
    location = new Transform3D();

    root_tx_grp = new TransformGroup();
    root_tx_grp.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    root_tx_grp.setTransform(location);/*from w  w w .ja v a 2 s.c o m*/
    root_tx_grp.addChild(platform);
    root_tx_grp.addChild(hud_group);

    // now create the headlight
    headlight = new DirectionalLight();
    headlight.setCapability(Light.ALLOW_STATE_WRITE);
    headlight.setColor(White);
    headlight.setInfluencingBounds(LIGHT_BOUNDS);
    root_tx_grp.addChild(headlight);

    body = new PhysicalBody();
    env = new PhysicalEnvironment();

    view = new View();
    view.setBackClipDistance(BACK_CLIP_DISTANCE);
    view.setPhysicalBody(body);
    view.setPhysicalEnvironment(env);
    view.attachViewPlatform(platform);
}

From source file:IntersectTest.java

public void init() {
    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);

    // Add picking behavior
    IntersectInfoBehavior behavior = new IntersectInfoBehavior(c, scene, 0.05f);
    behavior.setSchedulingBounds(bounds);
    scene.addChild(behavior);/*from w w w  .  jav a  2 s .  c om*/

    TransformGroup vpTrans = u.getViewingPlatform().getViewPlatformTransform();

    KeyNavigatorBehavior keybehavior = new KeyNavigatorBehavior(vpTrans);
    keybehavior.setSchedulingBounds(bounds);
    scene.addChild(keybehavior);
    scene.setCapability(Group.ALLOW_CHILDREN_EXTEND);
    scene.compile();
    u.addBranchGraph(scene);

    View view = u.getViewer().getView();
    view.setBackClipDistance(100000);

}

From source file:SwingTest.java

/**
 * Create the scene side of the scenegraph
 *//*from w ww.jav a  2 s .com*/
protected BranchGroup createSceneBranchGroup() {
    // create the root of the scene side scenegraph
    BranchGroup objRoot = new BranchGroup();

    // create a TransformGroup to rotate the objects in the scene
    // set the capability bits on the TransformGroup so that it
    // can be modified at runtime
    TransformGroup objTrans = new TransformGroup();
    objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);

    // create a spherical bounding volume
    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);

    // create a 4x4 transformation matrix
    Transform3D yAxis = new Transform3D();

    // create an Alpha interpolator to automatically generate
    // modifications to the rotation component of the transformation matrix
    Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0);

    // create a RotationInterpolator behavior to effect the TransformGroup
    rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI * 2.0f);

    // set the scheduling bounds on the behavior
    rotator.setSchedulingBounds(bounds);

    // add the behavior to the scenegraph
    objTrans.addChild(rotator);

    // create the BranchGroup which contains the objects
    // we add/remove to and from the scenegraph
    sceneBranchGroup = new BranchGroup();

    // allow the BranchGroup to have children added at runtime
    sceneBranchGroup.setCapability(Group.ALLOW_CHILDREN_EXTEND);
    sceneBranchGroup.setCapability(Group.ALLOW_CHILDREN_READ);
    sceneBranchGroup.setCapability(Group.ALLOW_CHILDREN_WRITE);

    // add both the cube and the sphere to the scenegraph
    sceneBranchGroup.addChild(createCube());
    sceneBranchGroup.addChild(createSphere());

    // create the colors for the lights
    Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f);
    Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f);
    Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f);

    // create the ambient light
    AmbientLight aLgt = new AmbientLight(alColor);
    aLgt.setInfluencingBounds(bounds);

    // create the directional light
    DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1);
    lgt1.setInfluencingBounds(bounds);

    // add the lights to the scenegraph
    objRoot.addChild(aLgt);
    objRoot.addChild(lgt1);

    // wire the scenegraph together
    objTrans.addChild(sceneBranchGroup);
    objRoot.addChild(objTrans);

    // return the root of the scene side of the scenegraph
    return objRoot;
}

From source file:ExText.java

/**
 * Builds the 3D universe by constructing a virtual universe (via
 * SimpleUniverse), a view platform (via SimpleUniverse), and a view (via
 * SimpleUniverse). A headlight is added and a set of behaviors initialized
 * to handle navigation types./*from w  w  w. j  ava 2  s .  c  om*/
 */
protected void buildUniverse() {
    //
    //  Create a SimpleUniverse object, which builds:
    //
    //    - a Locale using the given hi-res coordinate origin
    //
    //    - a ViewingPlatform which in turn builds:
    //          - a MultiTransformGroup with which to move the
    //            the ViewPlatform about
    //
    //          - a ViewPlatform to hold the view
    //
    //          - a BranchGroup to hold avatar geometry (if any)
    //
    //          - a BranchGroup to hold view platform
    //            geometry (if any)
    //
    //    - a Viewer which in turn builds:
    //          - a PhysicalBody which characterizes the user's
    //            viewing preferences and abilities
    //
    //          - a PhysicalEnvironment which characterizes the
    //            user's rendering hardware and software
    //
    //          - a JavaSoundMixer which initializes sound
    //            support within the 3D environment
    //
    //          - a View which renders the scene into a Canvas3D
    //
    //  All of these actions could be done explicitly, but
    //  using the SimpleUniverse utilities simplifies the code.
    //
    if (debug)
        System.err.println("Building scene graph...");
    SimpleUniverse universe = new SimpleUniverse(null, // Hi-res coordinate
            // for the origin -
            // use default
            1, // Number of transforms in MultiTransformGroup
            exampleCanvas, // Canvas3D into which to draw
            null); // URL for user configuration file - use defaults

    //
    //  Get the viewer and create an audio device so that
    //  sound will be enabled in this content.
    //
    Viewer viewer = universe.getViewer();
    viewer.createAudioDevice();

    //
    //  Get the viewing platform created by SimpleUniverse.
    //  From that platform, get the inner-most TransformGroup
    //  in the MultiTransformGroup. That inner-most group
    //  contains the ViewPlatform. It is this inner-most
    //  TransformGroup we need in order to:
    //
    //    - add a "headlight" that always aims forward from
    //       the viewer
    //
    //    - change the viewing direction in a "walk" style
    //
    //  The inner-most TransformGroup's transform will be
    //  changed by the walk behavior (when enabled).
    //
    ViewingPlatform viewingPlatform = universe.getViewingPlatform();
    exampleViewTransform = viewingPlatform.getViewPlatformTransform();

    //
    //  Create a "headlight" as a forward-facing directional light.
    //  Set the light's bounds to huge. Since we want the light
    //  on the viewer's "head", we need the light within the
    //  TransformGroup containing the ViewPlatform. The
    //  ViewingPlatform class creates a handy hook to do this
    //  called "platform geometry". The PlatformGeometry class is
    //  subclassed off of BranchGroup, and is intended to contain
    //  a description of the 3D platform itself... PLUS a headlight!
    //  So, to add the headlight, create a new PlatformGeometry group,
    //  add the light to it, then add that platform geometry to the
    //  ViewingPlatform.
    //
    BoundingSphere allBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100000.0);

    PlatformGeometry pg = new PlatformGeometry();
    headlight = new DirectionalLight();
    headlight.setColor(White);
    headlight.setDirection(new Vector3f(0.0f, 0.0f, -1.0f));
    headlight.setInfluencingBounds(allBounds);
    headlight.setCapability(Light.ALLOW_STATE_WRITE);
    pg.addChild(headlight);
    viewingPlatform.setPlatformGeometry(pg);

    //
    //  Create the 3D content BranchGroup, containing:
    //
    //    - a TransformGroup who's transform the examine behavior
    //      will change (when enabled).
    //
    //    - 3D geometry to view
    //
    // Build the scene root
    BranchGroup sceneRoot = new BranchGroup();

    // Build a transform that we can modify
    exampleSceneTransform = new TransformGroup();
    exampleSceneTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    exampleSceneTransform.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    exampleSceneTransform.setCapability(Group.ALLOW_CHILDREN_EXTEND);

    //
    //  Build the scene, add it to the transform, and add
    //  the transform to the scene root
    //
    if (debug)
        System.err.println("  scene...");
    Group scene = this.buildScene();
    exampleSceneTransform.addChild(scene);
    sceneRoot.addChild(exampleSceneTransform);

    //
    //  Create a pair of behaviors to implement two navigation
    //  types:
    //
    //    - "examine": a style where mouse drags rotate about
    //      the scene's origin as if it is an object under
    //      examination. This is similar to the "Examine"
    //      navigation type used by VRML browsers.
    //
    //    - "walk": a style where mouse drags rotate about
    //      the viewer's center as if the viewer is turning
    //      about to look at a scene they are in. This is
    //      similar to the "Walk" navigation type used by
    //      VRML browsers.
    //
    //  Aim the examine behavior at the scene's TransformGroup
    //  and add the behavior to the scene root.
    //
    //  Aim the walk behavior at the viewing platform's
    //  TransformGroup and add the behavior to the scene root.
    //
    //  Enable one (and only one!) of the two behaviors
    //  depending upon the current navigation type.
    //
    examineBehavior = new ExamineViewerBehavior(exampleSceneTransform, // Transform
            // gorup
            // to
            // modify
            exampleFrame); // Parent frame for cusor changes
    examineBehavior.setSchedulingBounds(allBounds);
    sceneRoot.addChild(examineBehavior);

    walkBehavior = new WalkViewerBehavior(exampleViewTransform, // Transform
            // group to
            // modify
            exampleFrame); // Parent frame for cusor changes
    walkBehavior.setSchedulingBounds(allBounds);
    sceneRoot.addChild(walkBehavior);

    if (navigationType == Walk) {
        examineBehavior.setEnable(false);
        walkBehavior.setEnable(true);
    } else {
        examineBehavior.setEnable(true);
        walkBehavior.setEnable(false);
    }

    //
    //  Compile the scene branch group and add it to the
    //  SimpleUniverse.
    //
    if (shouldCompile)
        sceneRoot.compile();
    universe.addBranchGraph(sceneRoot);

    reset();
}

From source file:Demo3D.java

/**
 * Create the subgraph #3//from www .  j a  v  a 2  s.  c  om
 * 
 * @return javax.media.j3d.BranchGroup brGr3 - the root of the subgraph #3
 */
public BranchGroup mySubGraph3() {
    // Create the BranchGroup node brGr3, in other words the root of
    // the subgraph31 and subgraph32.
    brGr3 = new BranchGroup();

    // To allow the detach/add process of the subgraph 32 from the
    // BranchGroup node brGr3.
    brGr3.setCapability(Group.ALLOW_CHILDREN_READ);
    brGr3.setCapability(Group.ALLOW_CHILDREN_WRITE);
    brGr3.setCapability(Group.ALLOW_CHILDREN_EXTEND);

    // A BoundingSphere instance as picking bound region.
    pickBounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 5.0);

    // A BoundingSphere instance as general bounding region.
    boundsGen = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);

    // Create and attach the subgraph31 with the tetrahedron
    // to the BranchGroup node brGr3.
    tetrahedron = new Tetrahedron(1.0f);
    sceneBuilder31 = new SceneBuilder31(tetrahedron.myTetrahedron());
    brGr3.addChild(sceneBuilder31.mySubGraph31());

    // Picking of the tetrahedron
    // Note:It's the instruction:
    //      trGr31.setCapability(TransformGroup.ENABLE_PICK_REPORTING)
    //      in the class SceneBuilder31 that determines if the
    //      tetrahedron is pickable or not.

    // Pick and translate the tetrahedron parallel to the z-axis if the
    // mouse pointer is over it.
    pickZoomBehavior = new PickZoomBehavior(brGr3, canvas3D, pickBounds);
    // pickZoomBehavior.setEnable(ctrlDown);
    brGr3.addChild(pickZoomBehavior);

    // Pick and translate the tetrahedron in the (x-y)-plane if the
    // mouse pointer is over it.
    pickTransBehavior = new PickTranslateBehavior(brGr3, canvas3D, pickBounds);
    // pickTransBehavior.setEnable(ctrlDown);
    brGr3.addChild(pickTransBehavior);

    // Pick and rotate the tetrahedron if the mouse pointer is over it.
    pickRotBehavior = new PickRotateBehavior(brGr3, canvas3D, pickBounds);
    // pickRotBehavior.setEnable(ctrlDown);
    brGr3.addChild(pickRotBehavior);

    // Create the subgraph32 ===> the earth in double rotation.
    sceneBuilder32 = new SceneBuilder32();
    brGr3.addChild(sceneBuilder32.mySubGraph32());

    // Create an instance of the AddDetachEarthBehavior class to
    // allow the detach/add process of the subgraph32.
    addDetachEarthBehavior = new AddDetachEarthBehavior(this, sceneBuilder32);
    addDetachEarthBehavior.setSchedulingBounds(boundsGen);
    brGr3.addChild(addDetachEarthBehavior);

    // Compile the subgraph to optimize the performances.
    brGr3.compile();

    // Return the final version of the BranchGroup node brGr3
    return brGr3;
}