Package javax.media.j3d

Examples of javax.media.j3d.BoundingBox

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    float cubeHalfLength = 0.1f;
    Box moveBox = new Box(cubeHalfLength,cubeHalfLength,cubeHalfLength,boxApp);


    //The CollisionBounds for the cube.
    moveBox.setCollisionBounds(new BoundingBox(new Point3d(0.0,0.0,0.0),
                                               new Point3d(cubeHalfLength,
                                                           cubeHalfLength,
                                                           cubeHalfLength)));

    moveBox.setCollidable(true);

    //Position the cube and assign it to a transformation group.
    Transform3D tfBox = new Transform3D();
    tfBox.rotY(Math.PI/6);
    Transform3D rotationX = new Transform3D();
    rotationX.rotX(-Math.PI/5);
    tfBox.mul(rotationX);
    TransformGroup tgBox = new TransformGroup(tfBox);
    tgBox.addChild(moveBox);


    //These properties are needed to allow the cube to moved around the scene.
    tgBox.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    tgBox.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
    tgBox.setCapability(TransformGroup.ENABLE_PICK_REPORTING);



    //Generate a golden Appearance for the cylinder.
    Color3f ambientColourCylinder = new Color3f(0.0f,0.0f,0.0f);
    Color3f emissiveColourCylinder = new Color3f(0.0f,0.0f,0.0f);
    Color3f diffuseColourCylinder = new Color3f(0.8f,0.4f,0.0f);
    Color3f specularColourCylinder = new Color3f(0.8f,0.8f,0.0f);
    float shininessCylinder = 100.0f;

    Appearance yellowCylinderApp = new Appearance();

    yellowCylinderApp.setMaterial(new Material(ambientColourCylinder,
                                               emissiveColourCylinder,
                                               diffuseColourCylinder,
                                               specularColourCylinder,
                                               shininessCylinder));


    //Generate the cylinder.
    Cylinder cyli = new Cylinder(0.1f,0.3f,yellowCylinderApp);

    //The CollisionBounds for the cylinder.
    cyli.setCollisionBounds(new BoundingBox(new Point3d(0.0,-0.15,0.0),
                                            new Point3d(0.1,0.15,0.1)));
    cyli.setCollidable(true);

    //Position the cylinder and assign it to a transformation group.
    Transform3D tfCylinder = new Transform3D();
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/* 877 */     switch (in.readInt()) {
/*     */     case 0:
/* 879 */       bounds = null;
/* 880 */       break;
/*     */     case 1:
/* 882 */       bounds = new BoundingBox(readPoint3d(in), readPoint3d(in));
/* 883 */       break;
/*     */     case 2:
/* 885 */       bounds = new BoundingSphere(readPoint3d(in), in.readDouble());
/* 886 */       break;
/*     */     case 3:
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        Transform3D transform3D = new Transform3D();
        trunkTransformGroup.getTransform(transform3D);

        // check bottom of trunk
        Shape3D bottom = trunkCylinder.getShape(Cylinder.BOTTOM);
        BoundingBox bottomBounds = (BoundingBox) bottom.getBounds();
        Point3d lowerBottom = new Point3d();
        bottomBounds.getLower(lowerBottom);
        Point3d movedLowerBottom = new Point3d();
        transform3D.transform(lowerBottom, movedLowerBottom);
        Point3d upperBottom = new Point3d();
        bottomBounds.getUpper(upperBottom);
        Point3d movedUpperBottom = new Point3d();
        transform3D.transform(upperBottom, movedUpperBottom);
        PointTestHelper.assertPointEquals(expectedLowerBottom, lowerBottom, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedMovedLowerBottom, movedLowerBottom, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedUpperBottom, upperBottom, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedMovedUpperBottom, movedUpperBottom, 0.02, 0.0001, 0.02);

        // check top of trunk
        Shape3D top = trunkCylinder.getShape(Cylinder.TOP);
        BoundingBox topBounds = (BoundingBox) top.getBounds();
        Point3d lowerTop = new Point3d();
        topBounds.getLower(lowerTop);
        Point3d movedLowerTop = new Point3d();
        transform3D.transform(lowerTop, movedLowerTop);
        Point3d upperTop = new Point3d();
        topBounds.getUpper(upperTop);
        Point3d movedUpperTop = new Point3d();
        transform3D.transform(upperTop, movedUpperTop);
        PointTestHelper.assertPointEquals(expectedLowerTop, lowerTop, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedMovedLowerTop, movedLowerTop, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedUpperTop, upperTop, 0.02, 0.0001, 0.02);
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        Transform3D transform3D = new Transform3D();
        trunkTransformGroup.getTransform(transform3D);

        // check bottom of trunk
        Shape3D bottom = trunkCylinder.getShape(Cylinder.BOTTOM);
        BoundingBox bottomBounds = (BoundingBox) bottom.getBounds();
        Point3d lowerBottom = new Point3d();
        bottomBounds.getLower(lowerBottom);
        Point3d movedLowerBottom = new Point3d();
        transform3D.transform(lowerBottom, movedLowerBottom);
        Point3d upperBottom = new Point3d();
        bottomBounds.getUpper(upperBottom);
        Point3d movedUpperBottom = new Point3d();
        transform3D.transform(upperBottom, movedUpperBottom);
        PointTestHelper.assertPointEquals(expectedLowerBottom, lowerBottom, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedMovedLowerBottom, movedLowerBottom, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedUpperBottom, upperBottom, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedMovedUpperBottom, movedUpperBottom, 0.02, 0.0001, 0.02);

        // check top of trunk
        Shape3D top = trunkCylinder.getShape(Cylinder.TOP);
        BoundingBox topBounds = (BoundingBox) top.getBounds();
        Point3d lowerTop = new Point3d();
        topBounds.getLower(lowerTop);
        Point3d movedLowerTop = new Point3d();
        transform3D.transform(lowerTop, movedLowerTop);
        Point3d upperTop = new Point3d();
        topBounds.getUpper(upperTop);
        Point3d movedUpperTop = new Point3d();
        transform3D.transform(upperTop, movedUpperTop);
        PointTestHelper.assertPointEquals(expectedLowerTop, lowerTop, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedMovedLowerTop, movedLowerTop, 0.02, 0.0001, 0.02);
        PointTestHelper.assertPointEquals(expectedUpperTop, upperTop, 0.02, 0.0001, 0.02);
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