Example usage for javax.media.j3d RotationInterpolator RotationInterpolator

Introduction

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

Prototype

public RotationInterpolator(Alpha alpha, TransformGroup target) 

Source Link

Document

Constructs a trivial rotation interpolator with a specified target, an default axisOfTranform set to identity, a minimum angle of 0.0f, and a maximum angle of 2*pi radians.

Usage

From source file:TwistStripApp.java

public BranchGroup createSceneGraph() {

    BranchGroup contentRoot = new BranchGroup();

    // Create the transform group node and initialize it to the
    // identity. Add it to the root of the subgraph.
    TransformGroup objSpin = new TransformGroup();
    objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    contentRoot.addChild(objSpin);/*  w w  w  .  j  a v a2s  .  c  o  m*/

    Shape3D twist = new Twist();
    objSpin.addChild(twist);

    // Duplicate the twist strip geometry and set the
    // appearance of the new Shape3D object to line mode
    // without culling.
    // Add the POLYGON_FILLED and POLYGON_LINE strips
    // in the scene graph at the same point.
    // This will show the triangles of the original Mobius strip that
    // are clipped. The PolygonOffset is set to prevent stitching.
    PolygonAttributes polyAttrib = new PolygonAttributes();
    polyAttrib.setCullFace(PolygonAttributes.CULL_NONE);
    polyAttrib.setPolygonMode(PolygonAttributes.POLYGON_LINE);
    polyAttrib.setPolygonOffset(0.001f);
    Appearance polyAppear = new Appearance();
    polyAppear.setPolygonAttributes(polyAttrib);
    objSpin.addChild(new Shape3D(twist.getGeometry(), polyAppear));

    Alpha rotationAlpha = new Alpha(-1, 16000);

    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objSpin);

    // a bounding sphere specifies a region a behavior is active
    // create a sphere centered at the origin with radius of 1
    BoundingSphere bounds = new BoundingSphere();
    rotator.setSchedulingBounds(bounds);
    objSpin.addChild(rotator);

    // make background white
    Background background = new Background(1.0f, 1.0f, 1.0f);
    background.setApplicationBounds(bounds);
    contentRoot.addChild(background);

    // Let Java 3D perform optimizations on this scene graph.
    contentRoot.compile();

    return contentRoot;
}

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From source file:GeomInfoApp.java

public BranchGroup createSceneGraph(boolean wireFrame) {
    int total = 0;

    System.out.println("\n --- geometry debug information --- \n");

    float[] coordinateData = null;
    coordinateData = createCoordinateData();
    int[] stripCount = { 17, 17, 5, 5, 5, 5, 5, 5, 5 }; // ******
    //        int[] stripCount = {17,17,17}; // ******

    for (int i = 0; i < stripCount.length; i++) {
        System.out.println("stripCount[" + i + "] = " + stripCount[i]);
        total += stripCount[i];/*from w  w w.  ja v a  2 s . co m*/
    }

    if (total != coordinateData.length / 3) {
        System.out.println("  coordinateData vertex count: " + coordinateData.length / 3);
        System.out.println("stripCount total vertex count: " + total);
    }

    GeometryInfo gi = new GeometryInfo(GeometryInfo.POLYGON_ARRAY);
    gi.setCoordinates(coordinateData);
    gi.setStripCounts(stripCount);

    Triangulator tr = new Triangulator();
    //        Triangulator tr = new Triangulator(1);
    System.out.println("begin triangulation");
    tr.triangulate(gi);
    System.out.println("  END triangulation");
    gi.recomputeIndices();

    NormalGenerator ng = new NormalGenerator();
    ng.generateNormals(gi);
    gi.recomputeIndices();

    Stripifier st = new Stripifier();
    st.stripify(gi);
    gi.recomputeIndices();

    Shape3D part = new Shape3D();
    if (wireFrame == true)
        part.setAppearance(createWireFrameAppearance());
    else
        part.setAppearance(createMaterialAppearance());
    part.setGeometry(gi.getGeometryArray());

    /////////////////////////////

    BranchGroup contentRoot = new BranchGroup();

    // Create the transform group node and initialize it to the
    // identity. Add it to the root of the subgraph.
    TransformGroup objSpin = new TransformGroup();
    objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
    contentRoot.addChild(objSpin);

    objSpin.addChild(part);

    ////////////////////////
    LineStripArray lineArray = new LineStripArray(69, LineArray.COORDINATES, stripCount); //*****
    //        LineStripArray lineArray = new LineStripArray(51,
    // LineArray.COORDINATES, stripCount); //*****
    lineArray.setCoordinates(0, coordinateData);
    Appearance blueColorAppearance = new Appearance();
    ColoringAttributes blueColoring = new ColoringAttributes();
    blueColoring.setColor(0.0f, 0.0f, 1.0f);
    blueColorAppearance.setColoringAttributes(blueColoring);
    LineAttributes lineAttrib = new LineAttributes();
    lineAttrib.setLineWidth(2.0f);
    blueColorAppearance.setLineAttributes(lineAttrib);
    objSpin.addChild(new Shape3D(lineArray, blueColorAppearance));

    Alpha rotationAlpha = new Alpha(-1, 16000);

    RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objSpin);

    // a bounding sphere specifies a region a behavior is active
    // create a sphere centered at the origin with radius of 1
    BoundingSphere bounds = new BoundingSphere();
    rotator.setSchedulingBounds(bounds);
    objSpin.addChild(rotator);

    DirectionalLight lightD = new DirectionalLight();
    lightD.setDirection(new Vector3f(0.0f, -0.7f, -0.7f));
    lightD.setInfluencingBounds(bounds);
    contentRoot.addChild(lightD);

    AmbientLight lightA = new AmbientLight();
    lightA.setInfluencingBounds(bounds);
    contentRoot.addChild(lightA);

    Background background = new Background();
    background.setColor(1.0f, 1.0f, 1.0f);
    background.setApplicationBounds(bounds);
    contentRoot.addChild(background);

    // Let Java 3D perform optimizations on this scene graph.
    // contentRoot.compile();

    return contentRoot;
}

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