Examples of javax.media.j3d.TransformGroup

javax.media.j3d.TransformGroup
Group node that contains a transform. The TransformGroup node specifies a single spatial transformation, via a Transform3D object, that can position, orient, and scale all of its children.
The specified transformation must be affine. Further, if the TransformGroup node is used as an ancestor of a ViewPlatform node in the scene graph, the transformation must be congruent-only rotations, translations, and uniform scales are allowed in a direct path from a Locale to a ViewPlatform node.
Note: Even though arbitrary affine transformations are allowed, better performance will result if all matrices within a branch graph are congruent, containing only rotations translation, and uniform scale.
The effects of transformations in the scene graph are cumulative. The concatenation of the transformations of each TransformGroup in a direct path from the Locale to a Leaf node defines a composite model transformation (CMT) that takes points in that Leaf node's local coordinates and transforms them into Virtual World (Vworld) coordinates. This composite transformation is used to transform points, normals, and distances into Vworld coordinates. Points are transformed by the CMT. Normals are transformed by the inverse-transpose of the CMT. Distances are transformed by the scale of the CMT. In the case of a transformation containing a nonuniform scale or shear, the maximum scale value in any direction is used. This ensures, for example, that a transformed bounding sphere, which is specified as a point and a radius, continues to enclose all objects that are also transformed using a nonuniform scale.

    Box fBox = new Box(0.2f,0.2f,0.2f,fBoxApp);


    //The UserData are needed in order to identify the cube when it is picked.
    fBox.setUserData("box");


    TransformGroup tgmBox = new TransformGroup();
    tgmBox.addChild(fBox);


    Transform3D rotationAxis = new Transform3D();




    //The following lines define what the cube should do when picked.
    Alpha boxAlpha = new Alpha(1,2000);


    //The starting time is first postponed until "infinity".
    boxAlpha.setStartTime(Long.MAX_VALUE);


    RotationInterpolator boxRotation = new RotationInterpolator(boxAlpha,tgmBox,
                                             rotationAxis,0.0f,(float) Math.PI*2);


    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),Double.MAX_VALUE);
    boxRotation.setSchedulingBounds(bounds);


    //The movement is added to the transformation group.
    tgmBox.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgmBox.addChild(boxRotation);




    //A transformation group for positioning the cube.
    Transform3D tfFBox = new Transform3D();
    tfFBox.rotY(Math.PI/6);
    Transform3D rotationX = new Transform3D();
    rotationX.rotX(-Math.PI/5);
    tfFBox.mul(rotationX);
    TransformGroup tgFBox = new TransformGroup(tfFBox);
    tgFBox.addChild(tgmBox);




//*** The same for the sphere.
    Color3f ambientColourBSphere = new Color3f(0.0f,0.6f,0.0f);
    Color3f emissiveColourBSphere = new Color3f(0.0f,0.0f,0.0f);
    Color3f diffuseColourBSphere = new Color3f(0.0f,0.6f,0.0f);
    Color3f specularColourBSphere = new Color3f(0.0f,0.6f,0.0f);
    float shininessBSphere = 2.0f;


    Appearance bSphereApp = new Appearance();


    bSphereApp.setMaterial(new Material(ambientColourBSphere,
                                        emissiveColourBSphere,
                                        diffuseColourBSphere,
                                        specularColourBSphere,
                                        shininessBSphere));


    Sphere bSphere = new Sphere(0.4f,bSphereApp);


    //The UserData are needed in order to identify the sphere when it is picked.
    bSphere.setUserData("sphere");


    TransformGroup tgmBSphere = new TransformGroup();
    tgmBSphere.addChild(bSphere);




    //Two transformations must be defined for the sphere: One for
    //shrinking, one for growing. First the shrinking transformation 
    //is defined.
    Alpha sphereShrinkAlpha = new Alpha(1,2000);


    //The starting time is first postponed until "infinity".
    sphereShrinkAlpha.setStartTime(Long.MAX_VALUE);


    ScaleInterpolator shrinker = new ScaleInterpolator(sphereShrinkAlpha,
                                                       tgmBSphere,
                                                       new Transform3D(),
                                                       1.0f,0.5f);


    shrinker.setSchedulingBounds(bounds);


    tgmBSphere.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgmBSphere.addChild(shrinker);




    //The same for the growing sphere.
    Alpha sphereStretchAlpha = new Alpha(1,2000);
    sphereStretchAlpha.setStartTime(Long.MAX_VALUE);


    ScaleInterpolator stretcher = new ScaleInterpolator(sphereStretchAlpha,
                                                       tgmBSphere,
                                                       new Transform3D(),
                                                       0.5f,1.0f);


    stretcher.setSchedulingBounds(bounds);


    tgmBSphere.addChild(stretcher);




    //A transformation group for positioning the sphere.
    Transform3D tfBSphere = new Transform3D();
    tfBSphere.setTranslation(new Vector3f(2.0f,0.0f,-10.5f));
    TransformGroup tgBSphere = new TransformGroup(tfBSphere);
    tgBSphere.addChild(tgmBSphere);


    //Generate the scenegraph.
    BranchGroup theScene = new BranchGroup();
    theScene.addChild(tgFBox);
    theScene.addChild(tgBSphere);

View Full Code Here

    tfBox.rotY(Math.PI/6);
    tfBox.rotX(Math.PI/9);
    Transform3D shift = new Transform3D();
    shift.setTranslation(new Vector3f(-0.6f,-0.2f,0.1f));
    tfBox.mul(shift);
    TransformGroup tgBox = new TransformGroup(tfBox);
    tgBox.addChild(myBox);








//*** Generate a sphere. ***


    //Generate an (unrealistic) Appearance for the sphere.
    Color3f ambientColourSphere = new Color3f(1.0f,0.0f,0.0f);
    Color3f emissiveColourSphere = new Color3f(0.3f,0.0f,0.0f);
    Color3f diffuseColourSphere = new Color3f(0.0f,1.0f,0.0f);
    Color3f specularColourSphere = new Color3f(0.0f,0.0f,1.0f);
    float shininessSphere = 20.0f;


    Appearance sphereApp = new Appearance();


    sphereApp.setMaterial(new Material(ambientColourSphere,emissiveColourSphere,
                           diffuseColourSphere,specularColourSphere,shininessSphere));






    Sphere mySphere = new Sphere(0.3f,Sphere.GENERATE_NORMALS,100,sphereApp);
    Transform3D tfSphere = new Transform3D();
    tfSphere.setTranslation(new Vector3f(0.0f,0.0f,-1.0f));


    TransformGroup tgSphere = new TransformGroup(tfSphere);
    tgSphere.addChild(mySphere);








    //*** Generate (the root of) the scenegraph. ***

View Full Code Here

    Vector3f lightDir  = new Vector3f(0.0f, 0.0f, -1.0f);
    DirectionalLight light = new DirectionalLight(lightColour, lightDir);
    light.setInfluencingBounds(bounds);


    //The transformation group for the directional light including the rotation.
    TransformGroup tfmLight = new TransformGroup();
    tfmLight.addChild(light);


    //The Alpha for the rotation.
    Alpha alphaLight = new Alpha(-1,4000);
    //The rotation.
    RotationInterpolator rot = new RotationInterpolator(alphaLight,tfmLight,
                                                        new Transform3D(),
                                                         0.0f,(float) Math.PI*2);
    rot.setSchedulingBounds(bounds);


    tfmLight.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tfmLight.addChild(rot);


    bgLight.addChild(tfmLight);

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    {
      for (int j=0; j<columns; j++)
      {
        tfArray[i][j] = new Transform3D();
        tfArray[i][j].setTranslation(new Vector3f(i*columnStep-2.0f,j*0.1f-0.5f,-j*rowStep));
        tgArray[i][j] = new TransformGroup(tfArray[i][j]);
        tgArray[i][j].addChild(new Link(sgSphere));
        theScene.addChild(tgArray[i][j]);
      }
    }

View Full Code Here

    fBox.setUserData("box");






    //Create a transformgroup for the rotation of the box.
    TransformGroup tgmBox = new TransformGroup();
    tgmBox.addChild(fBox);


    //Define the rotation.
    Transform3D rotationAxis = new Transform3D();


    Alpha boxAlpha = new Alpha(1,2000);


    //Set the starting time of the rotation to infinity.
    boxAlpha.setStartTime(Long.MAX_VALUE);


    RotationInterpolator boxRotation = new RotationInterpolator(boxAlpha,tgmBox,
                                             rotationAxis,0.0f,(float) Math.PI*2);


    BoundingSphere bounds = new BoundingSphere(new Point3d(0.0,0.0,0.0),100.0);
    boxRotation.setSchedulingBounds(bounds);


    //Add the rotation to the corresponding transform group.
    tgmBox.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgmBox.addChild(boxRotation);




    //Create a transformgroup for the positioning of the box and add the
    //transformgroup with the rotation.
    Transform3D tfFBox = new Transform3D();
    tfFBox.rotY(Math.PI/6);
    Transform3D rotationX = new Transform3D();
    rotationX.rotX(-Math.PI/5);
    tfFBox.mul(rotationX);
    TransformGroup tgFBox = new TransformGroup(tfFBox);


    tgFBox.addChild(tgmBox);




    //The same for the sphere:
    Color3f ambientColourBSphere = new Color3f(0.0f,0.0f,0.0f);
    Color3f emissiveColourBSphere = new Color3f(0.0f,0.0f,0.0f);
    Color3f diffuseColourBSphere = new Color3f(0.0f,0.5f,0.0f);
    Color3f specularColourBSphere = new Color3f(0.0f,0.8f,0.0f);
    float shininessBSphere = 128.0f;


    Appearance bSphereApp = new Appearance();


    bSphereApp.setMaterial(new Material(ambientColourBSphere,
                                        emissiveColourBSphere,
                                        diffuseColourBSphere,
                                        specularColourBSphere,
                                        shininessBSphere));


    Sphere bSphere = new Sphere(0.4f,bSphereApp);


    bSphere.setUserData("sphere");


    TransformGroup tgmBSphere = new TransformGroup();
    tgmBSphere.addChild(bSphere);




    //Create the transformation for shrinking.
    Alpha sphereShrinkAlpha = new Alpha(1,2000);
    sphereShrinkAlpha.setStartTime(Long.MAX_VALUE);


    ScaleInterpolator shrinker = new ScaleInterpolator(sphereShrinkAlpha,
                                                       tgmBSphere,
                                                       new Transform3D(),
                                                       1.0f,0.5f);


    shrinker.setSchedulingBounds(bounds);






    tgmBSphere.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgmBSphere.addChild(shrinker);




    //Create the transformation for stretching the sphere again.
    Alpha sphereStretchAlpha = new Alpha(1,2000);
    sphereStretchAlpha.setStartTime(Long.MAX_VALUE);


    ScaleInterpolator stretcher = new ScaleInterpolator(sphereStretchAlpha,
                                                       tgmBSphere,
                                                       new Transform3D(),
                                                       0.5f,1.0f);


    stretcher.setSchedulingBounds(bounds);


    tgmBSphere.addChild(stretcher);






    //Create a transform group to position the sphere and add the
    //transfromgroup with the shrinking/stretching.
    Transform3D tfBSphere = new Transform3D();
    tfBSphere.setTranslation(new Vector3f(2.0f,0.0f,-10.5f));
    TransformGroup tgBSphere = new TransformGroup(tfBSphere);
    tgBSphere.addChild(tgmBSphere);


    //Create the root of the scene graph and add the box and the sphere group.
    BranchGroup theScene = new BranchGroup();;
    theScene.addChild(tgFBox);
    theScene.addChild(tgBSphere);

View Full Code Here

    //A transformation rotating the platform a little bit.
    Transform3D tfPlatform = new Transform3D();
    tfPlatform.rotY(Math.PI/6);


    //The transformation group of the platform.
    TransformGroup tgPlatform = new TransformGroup(tfPlatform);
    tgPlatform.addChild(platform);










//*** The cockpit of the helicopter. ****


    //An Appearance to make the cockpit green.
    Appearance greenApp = new Appearance();
    setToMyDefaultAppearance(greenApp,new Color3f(0.0f,0.7f,0.0f));


    //Radius of the cockpit.
    float cabinRadius = 0.1f;


    //Generate the cockpit in the form of a sphere.
    Sphere cabin = new Sphere(cabinRadius,greenApp);


    //The transformation group for the cockpit.
    //The cockpit first remains in the origin. Later on, the whole
    //helicopter is shifted onto the platform.
    TransformGroup tgCabin = new TransformGroup();
    tgCabin.addChild(cabin);




//*** The rotor blade of the helicopter. ***


    //An Appearance to make the rotor blade blue.
    Appearance blueApp = new Appearance();
    setToMyDefaultAppearance(blueApp,new Color3f(0.0f,0.0f,1.0f));


    //Generate the rotor blade in the form of a (very thin and long) box.
    Box rotor = new Box(0.4f,0.0001f,0.01f,blueApp);


    //A transformation placing the rotor blade on top of the cockpit.
    Transform3D tfRotor = new Transform3D();
    tfRotor.setTranslation(new Vector3f(0.0f,cabinRadius,0.0f));


    //The transformation group for the rotor blade.
    TransformGroup tgRotor = new TransformGroup(tfRotor);
    tgRotor.addChild(rotor);




//*** The tail of the helicopter. ***


    //Length of the tail.
    float halfTailLength = 0.2f;


    //Generate the tail in form of a green box.
    Box tail = new Box(halfTailLength,0.02f,0.02f,greenApp);


    //A transformation placing the tail at the end of the cockpit.
    Transform3D tfTail = new Transform3D();
    tfTail.setTranslation(new Vector3f(cabinRadius+halfTailLength,0.0f,0.0f));


    //The transformation group for the tail.
    TransformGroup tgTail = new TransformGroup(tfTail);
    tgTail.addChild(tail);






//*** The helicopter, assembled by the transformation groups  ***
//*** for the cockpit, the rotor blade and the tail.          ***
//*** Afterwards, the helicopter must be lifted onto the      ***
//*** platform.                                               ***


    //The transformation placing the helicopter on top of the platform.
    Transform3D tfHelicopter = new Transform3D();
    tfHelicopter.setTranslation(new Vector3f(0.0f,platformSize+cabinRadius,0.0f));


    //The transformation group for the helicopter.
    TransformGroup tgHelicopter = new TransformGroup(tfHelicopter);
    tgHelicopter.addChild(tgCabin);
    tgHelicopter.addChild(tgRotor);
    tgHelicopter.addChild(tgTail);




//*** The helicopter and the platform are joint together in one    ***
//*** transformation group in order to place them together         ***
//*** in the scene.                                                ***
    //The transformation for positioning the helicopter
    //together with the platform.
    Transform3D tfHeliPlat = new Transform3D();
    tfHeliPlat.setTranslation(new Vector3f(0.0f,0.1f,0.0f));


    //The transformation group for the helicopter together with the platform.
    TransformGroup tgHeliPlat = new TransformGroup(tfHeliPlat);
    tgHeliPlat.addChild(tgHelicopter);
    tgHeliPlat.addChild(tgPlatform);






//*** The tree trunk. ***


    //An Appearance to make the tree trunk brown.
    Appearance brownApp = new Appearance();
    setToMyDefaultAppearance(brownApp,new Color3f(0.5f,0.2f,0.2f));


    //Height of the tree trunk.
    float trunkHeight = 0.4f;


    //Generate the tree trunk as a cylinder.
    Cylinder trunk = new Cylinder(0.05f,trunkHeight,brownApp);


    //The transformation group of the tree trunk. The tree trunk first
    //remains in the origin and is placed in the scene together with the 
    //leaves.
    TransformGroup tgTrunk = new TransformGroup();
    tgTrunk.addChild(trunk);




//*** The treetop. ***


    //Height of the treetop.
    float leavesHeight = 0.4f;


    //Generate the treetop in the form of a green cone.
    Cone leaves = new Cone(0.3f,leavesHeight,greenApp);


    //A transformation to place the treetop on top of the tree trunk.
    Transform3D tfLeaves = new Transform3D();
    tfLeaves.setTranslation(new Vector3f(0.0f,(trunkHeight+leavesHeight)/2,0.0f));


    //The transformation group of the treetop.
    TransformGroup tgLeaves = new TransformGroup(tfLeaves);
    tgLeaves.addChild(leaves);




//*** The tree assembled from the transformation groups for     ***
//*** the tree trunk and the treetop.                           ***


    //A transformation for positioning the tree in the scene.
    Transform3D tfTree = new Transform3D();
    tfTree.setTranslation(new Vector3f(-0.6f,0.0f,0.0f));


    //The transformation group of the tree.
    TransformGroup tgTree = new TransformGroup(tfTree);
    tgTree.addChild(tgTrunk);
    tgTree.addChild(tgLeaves);




//*** The root of the graph containing the scene. ***
    BranchGroup theScene = new BranchGroup();

View Full Code Here

    Transform3D tfFBox = new Transform3D();
    tfFBox.rotY(Math.PI/6);
    Transform3D rotationX = new Transform3D();
    rotationX.rotX(-Math.PI/5);
    tfFBox.mul(rotationX);
    TransformGroup tgFBox = new TransformGroup(tfFBox);


    tgFBox.addChild(fBox);






//*** Generate a red cube including its transformation group. ***
    Color3f ambientColourBSphere = new Color3f(0.0f,0.6f,0.0f);
    Color3f emissiveColourBSphere = new Color3f(0.0f,0.0f,0.0f);
    Color3f diffuseColourBSphere = new Color3f(0.0f,0.6f,0.0f);
    Color3f specularColourBSphere = new Color3f(0.0f,0.6f,0.0f);
    float shininessBSphere = 2.0f;


    Appearance bSphereApp = new Appearance();


    bSphereApp.setMaterial(new Material(ambientColourBSphere,emissiveColourBSphere,
                          diffuseColourBSphere,specularColourBSphere,shininessBSphere));


    Sphere bSphere = new Sphere(0.4f,bSphereApp);


    //The UserData are needed in order to identify the sphere when it is picked.
    bSphere.setUserData("sphere");


    Transform3D tfBSphere = new Transform3D();
    tfBSphere.setTranslation(new Vector3f(2.0f,0.0f,-10.5f));
    TransformGroup tgBSphere = new TransformGroup(tfBSphere);
    tgBSphere.addChild(bSphere);


    //Generate the scenegraph.
    BranchGroup theScene = new BranchGroup();
    theScene.addChild(tgFBox);
    theScene.addChild(tgBSphere);

View Full Code Here


    //The wings.
    Box wings = new Box(0.03f,0.005f,0.3f,birdApp);


    //The transformation group for the bird including the flight and the sound.
    TransformGroup tgmBird = new TransformGroup();
    tgmBird.addChild(wings);


    //The body of the bird.
    Box body = new Box(0.1f,0.01f,0.01f,birdApp);
    tgmBird.addChild(body);




    //The bird's flight.
    long flightTime = 10000;
    Alpha flightAlpha = new Alpha(-1,Alpha.INCREASING_ENABLE+Alpha.DECREASING_ENABLE,
                                  0,0,flightTime,0,0,flightTime,0,0);


    float flightDistance = 9.0f;
    PositionInterpolator posIFlight = new PositionInterpolator(flightAlpha,
                                                   tgmBird,new Transform3D(),
                                                   0.0f,flightDistance);


    BoundingSphere bs = new BoundingSphere(new Point3d(0.0,0.0,0.0),Double.MAX_VALUE);
    posIFlight.setSchedulingBounds(bs);


    tgmBird.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgmBird.addChild(posIFlight);


    //Add the PointSound also to the transformation group of the bird.
    tgmBird.addChild(soundPoint);




    //A transformation group to position the bird including its flight and sound.
    Transform3D tfBird = new Transform3D();
    tfBird.setTranslation(new Vector3f(-flightDistance/2,1.7f,-5.0f));
    TransformGroup tgBird = new TransformGroup(tfBird);
    tgBird.addChild(tgmBird);




    //Add everything to the scene.
    BranchGroup theScene = new BranchGroup();
    theScene.addChild(tgBird);

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    Transform3D tfFBox = new Transform3D();
    tfFBox.rotY(Math.PI/6);
    Transform3D rotationX = new Transform3D();
    rotationX.rotX(-Math.PI/5);
    tfFBox.mul(rotationX);
    TransformGroup tgFBox = new TransformGroup(tfFBox);
    tgFBox.addChild(fBox);




//*** And a sphere with its transformation group.


    //The colours for the Appearance.
    Color3f ambientColourBSphere = new Color3f(0.0f,0.4f,0.0f);
    Color3f emissiveColourBSphere = new Color3f(0.0f,0.0f,0.0f);
    Color3f diffuseColourBSphere = new Color3f(0.0f,0.0f,0.0f);
    Color3f specularColourBSphere = new Color3f(0.0f,0.8f,0.0f);
    float shininessBSphere = 128.0f;


    //The Appearance for the sphere.
    Appearance bSphereApp = new Appearance();
    bSphereApp.setMaterial(new Material(ambientColourBSphere,emissiveColourBSphere,
                          diffuseColourBSphere,specularColourBSphere,shininessBSphere));


    //The sphere.
    Sphere bSphere = new Sphere(0.4f,bSphereApp);


    //The transformation group for the sphere.
    Transform3D tfBSphere = new Transform3D();
    tfBSphere.setTranslation(new Vector3f(0.0f,2.7f,-10.5f));
    TransformGroup tgBSphere = new TransformGroup(tfBSphere);
    tgBSphere.addChild(bSphere);




    //Add everything to the scene.
    BranchGroup theScene = new BranchGroup();
    theScene.addChild(tgFBox);

View Full Code Here

    //A transformation rotating the platform a little bit.
    Transform3D tfPlatform = new Transform3D();
    tfPlatform.rotY(Math.PI/6);


    //The transformation group of the platform.
    TransformGroup tgPlatform = new TransformGroup(tfPlatform);
    tgPlatform.addChild(platform);










//*** The cockpit of the helicopter. ****




    //Radius of the cockpit.
    float cabinRadius = 0.1f;


    //Generate the cockpit in the form of a sphere.
    Sphere cabin = new Sphere(cabinRadius,blackApp);


    //The transformation group for the cockpit.
    //The cockpit first remains in the origin. Later on, the whole
    //helicopter is shifted onto the platform.
    TransformGroup tgCabin = new TransformGroup();
    tgCabin.addChild(cabin);




//*** The rotor blade of the helicopter. ***


    //Generate the rotor blade in the form of a (very thin and long) box.
    Box rotor = new Box(0.4f,0.0001f,0.01f,blackApp);


    //A transformation placing the rotor blade on top of the cockpit.
    Transform3D tfRotor = new Transform3D();
    tfRotor.setTranslation(new Vector3f(0.0f,cabinRadius,0.0f));


    //The transformation group for the rotor blade.
    TransformGroup tgRotor = new TransformGroup(tfRotor);
    tgRotor.addChild(rotor);




//*** The tail of the helicopter. ***


    //Length of the tail.
    float halfTailLength = 0.2f;


    //Generate the tail in form of a box.
    Box tail = new Box(halfTailLength,0.02f,0.02f,blackApp);


    //A transformation placing the tail at the end of the cockpit.
    Transform3D tfTail = new Transform3D();
    tfTail.setTranslation(new Vector3f(cabinRadius+halfTailLength,0.0f,0.0f));


    //The transformation group for the tail.
    TransformGroup tgTail = new TransformGroup(tfTail);
    tgTail.addChild(tail);






//*** The helicopter, assembled by the transformation groups  ***
//*** for the cockpit, the rotor blade and the tail.          ***
//*** Afterwards, the helicopter must be lifted onto the      ***
//*** platform.                                               ***


    //The transformation placing the helicopter on top of the platform.
    Transform3D tfHelicopter = new Transform3D();
    tfHelicopter.setTranslation(new Vector3f(0.0f,platformSize+cabinRadius,0.0f));


    //The transformation group for the helicopter.
    TransformGroup tgHelicopter = new TransformGroup(tfHelicopter);
    tgHelicopter.addChild(tgCabin);
    tgHelicopter.addChild(tgRotor);
    tgHelicopter.addChild(tgTail);




//*** The helicopter and the platform are joint together in one    ***
//*** transformation group in order to place them together         ***
//*** in the scene.                                                ***


    //The transformation for positioning the helicopter
    //together with the platform.
    Transform3D tfHeliPlat = new Transform3D();
    tfHeliPlat.setTranslation(new Vector3f(0.0f,0.1f,0.0f));


    //The transformation group for the helicopter together with the platform.
    TransformGroup tgHeliPlat = new TransformGroup(tfHeliPlat);
    tgHeliPlat.addChild(tgHelicopter);
    tgHeliPlat.addChild(tgPlatform);






//*** The tree trunk. ***


    //Height of the tree trunk.
    float trunkHeight = 0.4f;


    //Generate the tree trunk as a cylinder.
    Cylinder trunk = new Cylinder(0.05f,trunkHeight,blackApp);


    //The transformation group of the tree trunk. The tree trunk first
    //remains in the origin and is placed in the scene together with the 
    //leaves.
    TransformGroup tgTrunk = new TransformGroup();
    tgTrunk.addChild(trunk);




//*** The treetop. ***


    //Height of the treetop.
    float leavesHeight = 0.4f;


    //Generate the treetop in the form of a cone.
    Cone leaves = new Cone(0.3f,leavesHeight,blackApp);


    //A transformation to place the treetop on top of the tree trunk.
    Transform3D tfLeaves = new Transform3D();
    tfLeaves.setTranslation(new Vector3f(0.0f,(trunkHeight+leavesHeight)/2,0.0f));


    //The transformation group of the treetop.
    TransformGroup tgLeaves = new TransformGroup(tfLeaves);
    tgLeaves.addChild(leaves);




//*** The tree assembled from the transformation groups for     ***
//*** the tree trunk and the treetop.                           ***


    //A transformation for positioning the tree in the scene.
    Transform3D tfTree = new Transform3D();
    tfTree.setTranslation(new Vector3f(-0.6f,0.0f,0.0f));


    //The transformation group of the tree.
    TransformGroup tgTree = new TransformGroup(tfTree);
    tgTree.addChild(tgTrunk);
    tgTree.addChild(tgLeaves);




//*** The root of the graph containing the scene.  ***
    BranchGroup theScene = new BranchGroup();

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Related Classes of javax.media.j3d.TransformGroup

barsuift.simLife.j3d.tree.BasicTree3D

barsuift.simLife.j3d.tree.BasicTree3DTest

barsuift.simLife.j3d.tree.BasicTreeBranch3D

barsuift.simLife.j3d.tree.BasicTreeBranch3DTest

barsuift.simLife.j3d.tree.BasicTreeBranchPart3D

barsuift.simLife.j3d.tree.BasicTreeBranchPart3DTest

barsuift.simLife.j3d.tree.BasicTreeLeaf3DTest

barsuift.simLife.j3d.tree.BasicTreeTrunk3D

barsuift.simLife.j3d.tree.helper.BasicTreeTrunk3DTestHelper

barsuift.simLife.j3d.universe.BasicUniverse3D

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