Examples of javax.media.j3d.Shape3D

javax.media.j3d.Shape3D
The Shape3D leaf node specifies all geometric objects. It contains a list of one or more Geometry component objects and a single Appearance component object. The geometry objects define the shape node's geometric data. The appearance object specifies that object's appearance attributes, including color, material, texture, and so on.
The list of geometry objects must all be of the same equivalence class, that is, the same basic type of primitive. For subclasses of GeometryArray, all point objects are equivalent, all line objects are equivalent, and all polygon objects are equivalent. For other subclasses of Geometry, only objects of the same subclass are equivalent. The equivalence classes are as follows:
- GeometryArray (point): [Indexed]PointArray
- GeometryArray (line): [Indexed]{LineArray, LineStripArray}
- GeometryArray (polygon): [Indexed]{TriangleArray, TriangleStripArray, TriangleFanArray, QuadArray}
- CompressedGeometry
- Raster
- Text3D
When Shape3D is used with multiple geometry components, Java 3D may choose to use individual geometry bounds instead of the shape's bounds for region of influence operations, such as lighting. For example, the individual characters of a Text3D shape object may be rendered with a different light set.

        this.endPoint2 = state.getEndPoint2().toPointValue();


        maxEndPoint1 = computeMaxEndPoint(initialEndPoint1);
        maxEndPoint2 = computeMaxEndPoint(initialEndPoint2);
        leaf.addSubscriber(this);
        leafShape3D = new Shape3D();
        createLeafGeometry();
        setColor(leaf.getEfficiency());
        leafShape3D.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
        maxSizeReached = false;
        this.tg = createLeafTransformGroup();

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            addLeaf(treeLeaf.getTreeLeaf3D());
        }
    }


    private void addBranchShape() {
        Shape3D branchShape = new Shape3D();
        LineArray branchLine = createBranchLine();
        Appearance branchAppearance = new Appearance();
        AppearanceFactory.setColorWithColoringAttributes(branchAppearance, ColorConstants.brown);
        branchShape.setGeometry(branchLine);
        branchShape.setAppearance(branchAppearance);
        group.addChild(branchShape);
    }

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      PickResult result = pickCanvas.pickClosest();
        if (result == null) {
          System.out.println("Nothing picked");
        } else {
          Primitive p = (Primitive)result.getNode(PickResult.PRIMITIVE);
          Shape3D s = (Shape3D)result.getNode(PickResult.SHAPE3D);
          
          //*******************************************************************************
          //   This code will get you a reference to the sphere clicked on
          //   notice that it now prints out which sphere you clicked on
          SceneGraphPath myPath = result.getSceneGraphPath();

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    app.setPolygonAttributes(polyAttr);
    app.setTextureUnitState(textureUnitState);
    app.setMaterial(mat);
    
    // add to root node
    root.addChild(new Shape3D(strip, app));  
  }

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    app.setPolygonAttributes(polyAttr);
    app.setTextureUnitState(textureUnitState);
    app.setMaterial(mat);
    
    // add to root node
    root.addChild(new Shape3D(strip,app));
  }

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      public Node transform(Context<Graph<V,E>,E> ec) {
        LineArray lineArray = new LineArray(2, LineArray.COORDINATES | LineArray.COLOR_3);
        lineArray.setCoordinates(0, new Point3f[]{new Point3f(0,-.5f,0),new Point3f(0,.5f,0)});
        lineArray.setColor(0, new Color3f(1,1,1));
        lineArray.setColor(1, new Color3f(1,1,1));
        Shape3D shape = new Shape3D();
        shape.setGeometry(lineArray);
        return shape;
//        return new Cylinder(1, 1, 
//            Cylinder.GENERATE_NORMALS |
//            Cylinder.ENABLE_GEOMETRY_PICKING,
//             26, 26, lightGrayLook);

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    }


    public void reset() {
        area = 0;
        state = new TreeLeaf3DState();
        Shape3D shape = new Shape3D();
        tg = new TransformGroup();
        tg.addChild(shape);
        bg = new BranchGroup();
        bg.addChild(tg);
        attachPoint = new Point3d();

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    public void testAppearance() {
        mockLeaf.setEfficiency(PercentHelper.getDecimalValue(80));
        BasicTreeLeaf3D leaf3D = new BasicTreeLeaf3D(mockUniverse3D, leaf3DState, mockLeaf);
        CompilerHelper.compile(leaf3D.getBranchGroup());
        Shape3D leafShape3D = (Shape3D) ((TransformGroup) leaf3D.getBranchGroup().getChild(0)).getChild(0);


        Color3f expectedColor = new Color3f(ColorConstants.brownYellow);
        expectedColor.interpolate(ColorConstants.green, 0.8f);
        ColorTestHelper.testColorFromMaterial(leafShape3D.getAppearance(), expectedColor, new Color3f(0.05f, 0.05f,
                0.05f), new Color3f(0.15f, 0.15f, 0.15f));


        // check the leaves are not culled (transparent) when seen from behind
        assertEquals(PolygonAttributes.CULL_NONE, leafShape3D.getAppearance().getPolygonAttributes().getCullFace());


        mockLeaf.setEfficiency(PercentHelper.getDecimalValue(75));
        leaf3D.update(mockLeaf, LeafEvent.EFFICIENCY);


        // check that the color has changed as expected
        expectedColor = new Color3f(ColorConstants.brownYellow);
        expectedColor.interpolate(ColorConstants.green, 0.75f);
        ColorTestHelper.testColorFromMaterial(leafShape3D.getAppearance(), expectedColor, new Color3f(0.05f, 0.05f,
                0.05f), new Color3f(0.15f, 0.15f, 0.15f));




        mockLeaf.setEfficiency(PercentHelper.getDecimalValue(60));
        // 65536 does not correspond to any valid update code
        leaf3D.update(mockLeaf, 65536);


        // check that the color has NOT changed as expected, because the update code is not the appropriate one
        expectedColor = new Color3f(ColorConstants.brownYellow);
        expectedColor.interpolate(ColorConstants.green, 0.75f); // 75%, not 60%
        ColorTestHelper.testColorFromMaterial(leafShape3D.getAppearance(), expectedColor, new Color3f(0.05f, 0.05f,
                0.05f), new Color3f(0.15f, 0.15f, 0.15f));
    }

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        transformGroup.getTransform(transform3D);
        assertEquals(leaf3DState.getTransform(), new Transform3DState(transform3D));


        // test one leaf found
        Structure3DHelper.assertExactlyOneShape3D(transformGroup);
        Shape3D leafShape3D = (Shape3D) transformGroup.getChild(0);
        assertNotNull(leafShape3D);


        // test position and geometry
        Geometry leafGeometry = leafShape3D.getGeometry();
        assertTrue(leafGeometry instanceof TriangleArray);
        TriangleArray leafTriangle = (TriangleArray) leafGeometry;
        assertEquals(3, leafTriangle.getVertexCount());


        Point3d actualStartPoint = new Point3d();

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        leaf3DState.setEndPoint1(leaf3DState.getInitialEndPoint1());
        leaf3DState.setEndPoint2(leaf3DState.getInitialEndPoint2());
        Tuple3dState initialEndPoint1 = leaf3DState.getInitialEndPoint1();
        Tuple3dState initialEndPoint2 = leaf3DState.getInitialEndPoint2();
        BasicTreeLeaf3D leaf3D = new BasicTreeLeaf3D(mockUniverse3D, leaf3DState, mockLeaf);
        Shape3D leafShape = (Shape3D) ((TransformGroup) leaf3D.getBranchGroup().getChild(0)).getChild(0);
        Point3d geomEndPoint1 = new Point3d();
        Point3d geomEndPoint2 = new Point3d();


        assertFalse(leaf3D.isMaxSizeReached());


        leaf3D.increaseSize();


        // test state
        Point3d endPoint1 = leaf3D.getState().getEndPoint1().toPointValue();
        Point3d expectedEndPoint1 = new Point3d(initialEndPoint1.getX() * 2, initialEndPoint1.getY() * 2,
                initialEndPoint1.getZ() * 2);
        PointTestHelper.assertPointEquals(expectedEndPoint1, endPoint1);
        Point3d endPoint2 = leaf3D.getState().getEndPoint2().toPointValue();
        Point3d expectedEndPoint2 = new Point3d(initialEndPoint2.getX() * 2, initialEndPoint2.getY() * 2,
                initialEndPoint2.getZ() * 2);
        PointTestHelper.assertPointEquals(expectedEndPoint2, endPoint2);
        // test geometry
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint1);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint1);
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint2);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint2);


        leaf3D.increaseSize();


        // test state
        endPoint1 = leaf3D.getState().getEndPoint1().toPointValue();
        expectedEndPoint1 = new Point3d(initialEndPoint1.getX() * 3, initialEndPoint1.getY() * 3,
                initialEndPoint1.getZ() * 3);
        PointTestHelper.assertPointEquals(expectedEndPoint1, endPoint1);
        endPoint2 = leaf3D.getState().getEndPoint2().toPointValue();
        expectedEndPoint2 = new Point3d(initialEndPoint2.getX() * 3, initialEndPoint2.getY() * 3,
                initialEndPoint2.getZ() * 3);
        PointTestHelper.assertPointEquals(expectedEndPoint2, endPoint2);
        // test geometry
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint1);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint1);
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint2);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint2);


        // increase up to the max size
        leaf3D.increaseSize();
        leaf3D.increaseSize();
        leaf3D.increaseSize();
        leaf3D.increaseSize();
        leaf3D.increaseSize();
        leaf3D.increaseSize();
        leaf3D.increaseSize();


        // test state
        assertTrue(leaf3D.isMaxSizeReached());
        endPoint1 = leaf3D.getState().getEndPoint1().toPointValue();
        expectedEndPoint1 = new Point3d(initialEndPoint1.getX() * 10, initialEndPoint1.getY() * 10,
                initialEndPoint1.getZ() * 10);
        PointTestHelper.assertPointEquals(expectedEndPoint1, endPoint1);
        endPoint2 = leaf3D.getState().getEndPoint2().toPointValue();
        expectedEndPoint2 = new Point3d(initialEndPoint2.getX() * 10, initialEndPoint2.getY() * 10,
                initialEndPoint2.getZ() * 10);
        PointTestHelper.assertPointEquals(expectedEndPoint2, endPoint2);
        // test geometry
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint1);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint1);
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint2);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint2);


        // nothing changes if we increase the leaf again
        leaf3D.increaseSize();


        // test state
        assertTrue(leaf3D.isMaxSizeReached());
        endPoint1 = leaf3D.getState().getEndPoint1().toPointValue();
        expectedEndPoint1 = new Point3d(initialEndPoint1.getX() * 10, initialEndPoint1.getY() * 10,
                initialEndPoint1.getZ() * 10);
        PointTestHelper.assertPointEquals(expectedEndPoint1, endPoint1);
        endPoint2 = leaf3D.getState().getEndPoint2().toPointValue();
        expectedEndPoint2 = new Point3d(initialEndPoint2.getX() * 10, initialEndPoint2.getY() * 10,
                initialEndPoint2.getZ() * 10);
        PointTestHelper.assertPointEquals(expectedEndPoint2, endPoint2);
        // test geometry
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint1);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint1);
        ((TriangleArray) leafShape.getGeometry()).getCoordinate(1, geomEndPoint2);
        PointTestHelper.assertPointEquals(leaf3D.getState().getEndPoint1().toPointValue(), geomEndPoint2);
    }

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