javax.media.j3d.TransformGroup Java Examples

/**
 * Create a text object for compass point, N S E or W
 * @param inText text to display
 * @param inLocn position at which to display
 * @param inFont 3d font to use
 * @return compound object
 */
private TransformGroup createCompassPoint(String inText, Point3f inLocn, Font3D inFont)
{
	Text3D txt = new Text3D(inFont, inText, inLocn, Text3D.ALIGN_FIRST, Text3D.PATH_RIGHT);
	Material mat = new Material(new Color3f(0.5f, 0.5f, 0.55f),
		new Color3f(0.05f, 0.05f, 0.1f), new Color3f(0.3f, 0.4f, 0.5f),
		new Color3f(0.4f, 0.5f, 0.7f), 70.0f);
	mat.setLightingEnable(true);
	Appearance app = new Appearance();
	app.setMaterial(mat);
	Shape3D shape = new Shape3D(txt, app);

	// Make transform group with billboard behaviour
	TransformGroup subGroup = new TransformGroup();
	subGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
	subGroup.addChild(shape);
	Billboard billboard = new Billboard(subGroup, Billboard.ROTATE_ABOUT_POINT, inLocn);
	BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
	billboard.setSchedulingBounds(bounds);
	subGroup.addChild(billboard);
	return subGroup;
}
 

/**
 * ���[�U�̎��_��������
 */
private void initUserPosition() {
    ViewingPlatform vp = universe.getViewingPlatform(); // SimpleUniverse�̃f�t�H���g���擾
    TransformGroup steerTG = vp.getViewPlatformTransform(); // vp��TG���擾

    Transform3D t3d = new Transform3D(); // ���_�ivp�j�ړ��p��T3D
    steerTG.getTransform(t3d); // ���݂̎��_���擾

    // �V�������_��ݒ�
    // ���[�U�̈ʒu�A������̍��W�A�������w��
    // ���_�̐�͌��_
    t3d.lookAt(USER_POS, new Point3d(0, 0, 0), new Vector3d(0, 1, 0));
    t3d.invert();

    steerTG.setTransform(t3d); // �ύX�������_��ݒ�
}
 

public Ball(double x, double y, double z, double vx, double vy, double vz) {
    position = new Vector3d(x, y, z);
    speed = new Vector3d(vx, vy, vz);

    // �ړ��”\
    this.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    this.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

    app = new Appearance();
    app.setTexture(loadTexture("carpet.jpg"));

    // �{�[����lj�
    this.addChild(new Sphere(radius, Sphere.GENERATE_TEXTURE_COORDS, 100, app));

    move();
}
 

/**
 * ���[�U�̎��_��������
 */
private void initUserPosition() {
    ViewingPlatform vp = universe.getViewingPlatform(); // SimpleUniverse�̃f�t�H���g���擾
    TransformGroup steerTG = vp.getViewPlatformTransform(); // vp��TG���擾

    Transform3D t3d = new Transform3D(); // ���_�ivp�j�ړ��p��T3D
    steerTG.getTransform(t3d); // ���݂̎��_���擾

    // �V�������_��ݒ�
    // ���[�U�̈ʒu�A������̍��W�A�������w��
    // ���_�̐�͌��_
    t3d.lookAt(USER_POS, new Point3d(0, 0, 0), new Vector3d(0, 1, 0));
    t3d.invert();

    steerTG.setTransform(t3d); // �ύX�������_��ݒ�
}
 

public Ball(double x, double y, double z) {
    position = new Vector3d(x, y, z);
    velocity = new Vector3d(0, 0, 0);
    acceleration = new Vector3d(0, -0.01, 0);  // �����x�͈��
    
    // �ړ��”\
    this.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    this.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

    app = new Appearance();
    Material mat = new Material();
    mat.setAmbientColor(new Color3f(0.0f, 0.0f, 1.0f));
    mat.setSpecularColor(new Color3f(1.0f, 1.0f, 1.0f));
    app.setMaterial(mat);

    TransparencyAttributes transAttr = new TransparencyAttributes(
            TransparencyAttributes.BLENDED, 0.2f);
    app.setTransparencyAttributes(transAttr);

    // �{�[����lj�
    this.addChild(new Sphere(radius, Sphere.GENERATE_NORMALS, 100, app));

    move();
}
 

/**
 * ���[�U�̎��_��������
 */
private void initUserPosition() {
    ViewingPlatform vp = universe.getViewingPlatform(); // SimpleUniverse�̃f�t�H���g���擾
    TransformGroup steerTG = vp.getViewPlatformTransform(); // vp��TG���擾

    Transform3D t3d = new Transform3D(); // ���_�ivp�j�ړ��p��T3D
    steerTG.getTransform(t3d); // ���݂̎��_���擾

    // �V�������_��ݒ�
    // ���[�U�̈ʒu�A������̍��W�A�������w��
    // ���_�̐�͌��_
    t3d.lookAt(USER_POS, new Point3d(0, 0, 0), new Vector3d(0, 1, 0));
    t3d.invert();

    steerTG.setTransform(t3d); // �ύX�������_��ݒ�
}
 

public static BranchGroup addElementAt(Node aShape, Vector3f aTranslation, float aScale) {

        BranchGroup theGroup = new BranchGroup();
        theGroup.setCapability(BranchGroup.ALLOW_DETACH);

        Transform3D theTransform = new Transform3D();
        theTransform.setTranslation(aTranslation);
        theTransform.setScale(aScale);
        TransformGroup theTransformGroup = new TransformGroup(theTransform);
        theTransformGroup.addChild(aShape);

        theGroup.addChild(theTransformGroup);

        return theGroup;
    }
 

/**
 * Create a ball at the given point
 * @param inPosition scaled position of point
 * @param inSphere sphere object
 * @param inMaterial material object
 * @return Group containing sphere
 */
private static Group createBall(Point3d inPosition, Sphere inSphere, Material inMaterial)
{
	Group group = new Group();
	// Create ball and add to group
	Transform3D ballShift = new Transform3D();
	ballShift.setTranslation(new Vector3d(inPosition));
	TransformGroup ballShiftTrans = new TransformGroup(ballShift);
	inMaterial.setLightingEnable(true);
	Appearance ballApp = new Appearance();
	ballApp.setMaterial(inMaterial);
	inSphere.setAppearance(ballApp);
	ballShiftTrans.addChild(inSphere);
	group.addChild(ballShiftTrans);
	// Also create rod for ball to sit on
	Cylinder rod = new Cylinder(0.1f, (float) inPosition.y);
	Material rodMat = new Material(new Color3f(0.2f, 0.2f, 0.2f),
		new Color3f(0.0f, 0.0f, 0.0f), new Color3f(0.2f, 0.2f, 0.2f),
		new Color3f(0.05f, 0.05f, 0.05f), 0.4f);
	rodMat.setLightingEnable(true);
	Appearance rodApp = new Appearance();
	rodApp.setMaterial(rodMat);
	rod.setAppearance(rodApp);
	Transform3D rodShift = new Transform3D();
	rodShift.setTranslation(new Vector3d(inPosition.x, inPosition.y/2.0, inPosition.z));
	TransformGroup rodShiftTrans = new TransformGroup(rodShift);
	rodShiftTrans.addChild(rod);
	group.addChild(rodShiftTrans);
	// return the pair
	return group;
}
 

/**
 * �V�[�����\�z����
 * @return BG
 */
public BranchGroup createSceneGraph() {
    BranchGroup bg = new BranchGroup();

    // ��]�pTG
    TransformGroup spinTG = new TransformGroup();
    spinTG.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);

    // ��]�^��
    Alpha rotationAlpha = new Alpha(-1, 4000);
    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha,
            spinTG);

    // �͈͂��w��
    BoundingSphere bounds = new BoundingSphere();
    rotator.setSchedulingBounds(bounds);

    spinTG.addChild(rotator);

    // �g���C�t�H�[�X
    Triforce triforce = new Triforce();
    spinTG.addChild(triforce.getBG()); // spinTG�ɒlj��I

    bg.addChild(spinTG);

    return bg;
}
 

/**
 * ����sceneBG�ɒlj�
 */
private void addSphere() {
    Color3f black = new Color3f(0.0f, 0.0f, 0.0f); // ��
    Color3f red = new Color3f(1.0f, 0.0f, 0.0f); // ��
    Color3f specular = new Color3f(0.9f, 0.9f, 0.9f); // �قڔ�

    // ���̍ގ��iMaterial�j
    Material blueMat = new Material(red, black, red, specular, 25.0f);
    blueMat.setLightingEnable(true);

    // ���̌����ځiAppearance�j
    Appearance blueApp = new Appearance();
    blueApp.setMaterial(blueMat);

    // ���̈ړ�
    Transform3D t3d = new Transform3D();
    t3d.set(new Vector3f(0, 0, 0));  // ���_�ֈړ�����T3D

    // �ړ����]�p�̃m�[�h��TG�iT3D���Z�b�g���Ďg���j
    TransformGroup tg = new TransformGroup(t3d);
    // �����쐬
    Sphere sphere = new Sphere(2.0f, Sphere.GENERATE_NORMALS, 100, blueApp);
    tg.addChild(sphere);  // �ړ��pTG�ɋ���ڑ�����I

    // sceneBG�ɋ����܂�TG��lj�
    sceneBG.addChild(tg);
}
 

public BranchGroup createSceneGraph() {
    BranchGroup bg = new BranchGroup();

    // �L���[�u���X����
    Transform3D rotate = new Transform3D();
    Transform3D tempRotate = new Transform3D();

    rotate.rotX(Math.PI / 4.0);
    tempRotate.rotY(Math.PI / 4.0);
    rotate.mul(tempRotate);

    TransformGroup rotateTG = new TransformGroup(rotate);

    // �L���[�u����]����
    TransformGroup spinTG = new TransformGroup();
    spinTG.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    // �J���[�L���[�u���쐬����spinTG�ɒlj�
    ColorCube cube = new ColorCube(0.4);
    spinTG.addChild(cube);

    // ��]�^��
    Alpha rotationAlpha = new Alpha(-1, 4000);
    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, spinTG);
    // �͈͂��w��
    BoundingSphere bounds = new BoundingSphere();
    rotator.setSchedulingBounds(bounds);
    spinTG.addChild(rotator);

    rotateTG.addChild(spinTG);
    bg.addChild(rotateTG);

    return bg;
}
 

public KinematicObject(World world) {
    super(world);
    rotation.setIdentity();
    transformGroup = new TransformGroup();
    transformGroup.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    transform = new Transform3D();
    transformGroup.setTransform(transform);
    branchGroup = new BranchGroup();
    branchGroup.addChild(transformGroup);
}
 

/**
 * �V�[�����\�z����
 * 
 * @return BG
 */
public BranchGroup createSceneGraph() {
    BranchGroup bg = new BranchGroup();

    // �O�~
    Appearance app = new Appearance();
    app.setTexture(loadTexture("carpet.jpg"));  // �O�~�̃e�N�X�`��
    Box floor = new Box(0.8f, 0.01f, 0.8f, Box.GENERATE_TEXTURE_COORDS, app);

    // ������
    app = new Appearance();
    Material mat = new Material();
    mat.setAmbientColor(new Color3f(0.0f, 0.0f, 1.0f));
    mat.setSpecularColor(new Color3f(1.0f, 1.0f, 1.0f));
    app.setMaterial(mat);

    TransparencyAttributes transAttr = new TransparencyAttributes(
            TransparencyAttributes.BLENDED, 0.5f);
    app.setTransparencyAttributes(transAttr);

    Sphere sphere = new Sphere(0.3f, Sphere.GENERATE_NORMALS, 100, app);

    // �������ړ��p
    Transform3D t3d = new Transform3D();
    t3d.set(new Vector3f(0.0f, 0.3f, 0.0f));
    TransformGroup tg = new TransformGroup(t3d);
    tg.addChild(sphere);

    bg.addChild(floor);
    bg.addChild(tg);
    
    // ����
    BoundingSphere bounds = new BoundingSphere();

    Light light = new AmbientLight();
    light.setInfluencingBounds(bounds);
    bg.addChild(light);

    light = new DirectionalLight(new Color3f(1.0f, 1.0f, 1.0f), new Vector3f(1.0f, -1.0f, -1.0f));
    light.setInfluencingBounds(bounds);
    bg.addChild(light);

    return bg;
}