Example usage for javax.media.j3d PointArray setColor

Introduction

In this page you can find the example usage for javax.media.j3d PointArray setColor.

Prototype

public void setColor(int index, float color[]) 

Source Link

Document

Sets the color associated with the vertex at the specified index for this object.

Usage

From source file:IntersectTest.java

public BranchGroup createSceneGraph() {

    // Create the root of the branch graph
    BranchGroup objRoot = new BranchGroup();

    // Set up the ambient light
    Color3f ambientColor = new Color3f(0.1f, 0.1f, 0.1f);
    AmbientLight ambientLightNode = new AmbientLight(ambientColor);
    ambientLightNode.setInfluencingBounds(bounds);
    objRoot.addChild(ambientLightNode);//from   www  .j a va2  s  .c o m

    // Set up the directional lights
    Color3f light1Color = new Color3f(1.0f, 1.0f, 0.9f);
    Vector3f light1Direction = new Vector3f(4.0f, -7.0f, -12.0f);
    Color3f light2Color = new Color3f(0.3f, 0.3f, 0.4f);
    Vector3f light2Direction = new Vector3f(-6.0f, -2.0f, -1.0f);

    DirectionalLight light1 = new DirectionalLight(light1Color, light1Direction);
    light1.setInfluencingBounds(bounds);
    objRoot.addChild(light1);

    DirectionalLight light2 = new DirectionalLight(light2Color, light2Direction);
    light2.setInfluencingBounds(bounds);
    objRoot.addChild(light2);

    Transform3D t3 = new Transform3D();

    // Shapes
    for (int x = 0; x < 3; x++) {
        for (int y = 0; y < 3; y++) {
            for (int z = 0; z < 3; z++) {
                t3.setTranslation(new Vector3d(-4 + x * 4.0, -4 + y * 4.0, -20 - z * 4.0));
                TransformGroup objTrans = new TransformGroup(t3);

                objRoot.addChild(objTrans);

                // Create a simple shape leaf node, add it to the scene
                // graph.
                GeometryArray geom = null;

                if (((x + y + z) % 2) == 0) {
                    geom = new RandomColorCube();
                } else {
                    geom = new RandomColorTetrahedron();
                }

                Shape3D shape = new Shape3D(geom);

                // use the utility method to set the capabilities
                PickTool.setCapabilities(shape, PickTool.INTERSECT_FULL);

                objTrans.addChild(shape);
            }
        }
    }

    // Lines
    Point3f[] verts = { new Point3f(-2.0f, 0.0f, 0.0f), new Point3f(2.0f, 0.0f, 0.0f) };
    Color3f grey = new Color3f(0.7f, 0.7f, 0.7f);
    Color3f[] colors = { grey, grey };

    for (int y = 0; y < 5; y++) {
        for (int z = 0; z < 5; z++) {
            t3.setTranslation(new Vector3d(7.0, -4 + y * 2.0, -20.0 - z * 2.0));
            TransformGroup objTrans = new TransformGroup(t3);

            objRoot.addChild(objTrans);

            LineArray la = new LineArray(verts.length, LineArray.COORDINATES | LineArray.COLOR_3);
            la.setCoordinates(0, verts);
            la.setColors(0, colors);

            Shape3D shape = new Shape3D();
            shape.setGeometry(la);

            // use the utility method to set the capabilities
            PickTool.setCapabilities(shape, PickTool.INTERSECT_FULL);

            objTrans.addChild(shape);
        }
    }

    // Points
    for (double x = -2.0; x <= 2.0; x += 1.0) {
        for (double y = -2.0; y <= 2.0; y += 1.0) {
            for (double z = -2.0; z <= 2.0; z += 1.0) {
                t3.setTranslation(new Vector3d(-10.0 + 2.0 * x, 0.0 + 2.0 * y, -20.0 + 2.0 * z));
                TransformGroup objTrans = new TransformGroup(t3);

                objRoot.addChild(objTrans);

                PointArray pa = new PointArray(1, PointArray.COORDINATES | PointArray.COLOR_3);

                pa.setCoordinate(0, new Point3d(0.0, 0.0, 0.0));
                pa.setColor(0, grey);

                Shape3D shape = new Shape3D();
                shape.setGeometry(pa);

                // use the utility method to set the capabilities
                PickTool.setCapabilities(shape, PickTool.INTERSECT_FULL);

                objTrans.addChild(shape);
            }
        }
    }

    return objRoot;
}

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From source file:PointTest.java

private BranchGroup createPoints(final int nPointSize, final int nNumPoints, boolean bAliased) {
    BranchGroup bg = new BranchGroup();

    String szText = new String();
    szText += (nNumPoints + "X, Size:" + nPointSize + ", aliased: " + bAliased);

    Font3D f3d = new Font3D(new Font("SansSerif", Font.PLAIN, 1), new FontExtrusion());
    Text3D label3D = new Text3D(f3d, szText, new Point3f(-5, 0, 0));
    Shape3D sh = new Shape3D(label3D);

    bg.addChild(sh);/*from ww  w  . j a  v a 2s .  co m*/

    PointArray pointArray = new PointArray(nNumPoints * nNumPoints,
            GeometryArray.COORDINATES | GeometryArray.COLOR_3);

    // create the PointArray that we will be rendering
    int nPoint = 0;
    final double factor = 1.0 / nNumPoints;

    for (int n = 0; n < nNumPoints; n++) {
        for (int i = 0; i < nNumPoints; i++) {
            Point3f point = new Point3f(n - nNumPoints / 2, i - nNumPoints / 2, 0.0f);
            pointArray.setCoordinate(nPoint, point);
            pointArray.setColor(nPoint++, new Color3f(0.5f, (float) (n * factor), (float) (i * factor)));
        }
    }

    // create the material for the points
    Appearance pointApp = new Appearance();

    // enlarge the points
    pointApp.setPointAttributes(new PointAttributes(nPointSize, bAliased));

    Shape3D pointShape = new Shape3D(pointArray, pointApp);

    bg.addChild(pointShape);
    return bg;
}

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