Пример #1
0
  /**
   * Simple algorithm to add or remove a quad from the selection Ideas: 1. Use one shape per quad =>
   * easy, but can become very fast too big to fit in memory. => pb: flicker when adding / removing
   * because the scene is detached 2. Use only one shape, modify geometry TODO: pre-create an empty
   * shape to avoid initial flicker
   *
   * @param on
   * @param p
   * @param u
   * @param v
   * @param groupIdx2
   */
  protected void toggleSelectedQuad(boolean on, SelectionQuad sq) {
    LOGGER.finest("on=" + on + " selectionQuad=" + sq);
    if (on) {
      // add the given quad to the list
      if (selection.contains(sq)) return; // already in
      selection.add(sq);
    } else {
      // remove the given quad from the list
      if (!selection.contains(sq)) return; // not present
      selection.remove(sq);
      if (selection.size() == 0) {
        QuadArray qa = (QuadArray) selectionShape.getGeometry();
        qa.setValidVertexCount(0);
        return;
      }
    }
    // Use in-memory arrays instead of NIO because selection should not be
    // too big
    // => faster
    QuadArray qa =
        new QuadArray(
            selection.size() * 4,
            GeometryArray.COORDINATES | GeometryArray.COLOR_3 | GeometryArray.BY_REFERENCE);
    float[] coords = new float[selection.size() * 4 * 3];
    float[] colors = new float[selection.size() * 4 * 3];

    for (int i = 0; i < coords.length; i += 12) {
      SelectionQuad quad = selection.get(i / 12);
      quad.updateCoords(grid, coords, i);
      quad.updateColors(colors, i);
    }
    qa.setCoordRefFloat(coords);
    qa.setColorRefFloat(colors);
    qa.setCapability(GeometryArray.ALLOW_COUNT_WRITE);
    // update selection Shape with the new selection list
    if (selectionShape == null) {
      Appearance a = new Appearance();
      PolygonAttributes pa =
          new PolygonAttributes(PolygonAttributes.POLYGON_FILL, PolygonAttributes.CULL_NONE, 0);
      pa.setPolygonOffset(0.5f); // between faces and edges
      pa.setPolygonOffsetFactor(0.5f);
      a.setPolygonAttributes(pa);
      selectionShape = new Shape3D(qa, a);
      selectionShape.setUserData(this);
      selectionShape.setPickable(false);
      selectionShape.setCapability(Shape3D.ALLOW_GEOMETRY_WRITE);
      selectionShape.setCapability(Shape3D.ALLOW_GEOMETRY_READ);
      BranchGroup bg = new BranchGroup();
      bg.addChild(selectionShape);
      addChild(bg);
    } else selectionShape.setGeometry(qa);
  }
Пример #2
0
  public CubeShape() {
    super();

    int i;

    QuadArray cube = new QuadArray(24, QuadArray.COORDINATES | QuadArray.NORMALS);

    cube.setCoordinates(0, verts);
    for (i = 0; i < 24; i++) {
      cube.setNormal(i, normals[i / 4]);
    }

    cube.setCapability(Geometry.ALLOW_INTERSECT);
    setAppearance(new Appearance());
    setGeometry(cube);
  }
Пример #3
0
  protected void makeGroups() {
    int totalQuads = 0;
    int totalInternalEdges = 0;
    int totalExternalEdges = 0;
    // loop over each group
    // loop over each group
    int[] groupID = provider.getDomainIDs();

    for (int g = 0; g < groupID.length; ++g) {
      LOGGER.finest("generating java3d tree for group number " + groupID[g]);
      // Set of EdgeLine objects. Overlapping edges on the same line are
      // merged together
      HashMap<EdgeLine, EdgeLine> externalEdges = new HashMap<EdgeLine, EdgeLine>();
      // Same trick for internal edges.
      HashMap<EdgeLine, EdgeLine> internalEdges = new HashMap<EdgeLine, EdgeLine>();
      FDDomain fdDomain = (FDDomain) provider.getDomain(groupID[g]);
      baseColor.put(new Integer(g), fdDomain.getColor());
      Plate[] plates = domainToPlates(fdDomain);

      if (plates.length == 0) continue;

      // Create plates for this group
      FloatBuffer nioCoords =
          ByteBuffer.allocateDirect(plates.length * 4 * 3 * 4)
              .order(ByteOrder.nativeOrder())
              .asFloatBuffer();
      FloatBuffer nioColors =
          ByteBuffer.allocateDirect(plates.length * 4 * 3 * 4)
              .order(ByteOrder.nativeOrder())
              .asFloatBuffer();
      float[] baseColor = getColorForOrder(g, 0);
      // System.out.println(baseColor[0]+" "+baseColor[1]+" "+baseColor[2]);
      for (int np = 0; np < plates.length; ++np) {
        Plate p = plates[np];
        // put coordinates
        nioCoords.put(p.getCoordinates(grid));
        // put colors for the 4 vertices
        nioColors.put(baseColor);
        nioColors.put(baseColor);
        nioColors.put(baseColor);
        nioColors.put(baseColor);
        // Merge external edges
        addEdge(externalEdges, getLine(p, 2, p.min1), p.min2, p.max2);
        addEdge(externalEdges, getLine(p, 2, p.max1), p.min2, p.max2);
        addEdge(externalEdges, getLine(p, 1, p.min2), p.min1, p.max1);
        addEdge(externalEdges, getLine(p, 1, p.max2), p.min1, p.max1);
        // Merge internal edges
        for (int i = p.min1 + 1; i < p.max1; ++i)
          addEdge(internalEdges, getLine(p, 2, i), p.min2, p.max2);
        for (int j = p.min2 + 1; j < p.max2; ++j)
          addEdge(internalEdges, getLine(p, 1, j), p.min1, p.max1);
      }
      // use by reference array of colors => fast to change!
      QuadArray qa =
          new NioQuadArray(plates.length * 4, GeometryArray.COORDINATES | GeometryArray.COLOR_3);
      qa.setCoordRefBuffer(new J3DBuffer(nioCoords));
      qa.setColorRefBuffer(new J3DBuffer(nioColors));
      qa.setCapability(GeometryArray.ALLOW_COLOR_WRITE);
      qa.setCapabilityIsFrequent(GeometryArray.ALLOW_COLOR_WRITE);
      Appearance a = new Appearance();
      PolygonAttributes pa =
          new PolygonAttributes(PolygonAttributes.POLYGON_FILL, PolygonAttributes.CULL_NONE, 0);
      pa.setPolygonOffset(1);
      pa.setPolygonOffsetFactor(1);
      a.setPolygonAttributes(pa);
      Shape3D s3d = new Shape3D(qa, a);
      PickTool.setCapabilities(s3d, PickTool.INTERSECT_FULL);
      s3d.setCapability(Shape3D.ALLOW_APPEARANCE_READ);
      s3d.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
      s3d.setCapability(Node.ALLOW_PICKABLE_READ);
      s3d.setCapability(Node.ALLOW_PICKABLE_WRITE);
      s3d.setPickable(true);
      s3d.setUserData(new BehindShape(s3d, plates, g));

      this.addChild(s3d);

      // Create edge shapes directly, don't make them appear in graph
      int nInternalEdges = 0;
      for (Iterator<EdgeLine> it = internalEdges.keySet().iterator(); it.hasNext(); ) {
        EdgeLine el = it.next();
        nInternalEdges += el.getNumberOfEdges();
      }
      if (nInternalEdges > 0) {
        DoubleBuffer nioInternalEdges =
            ByteBuffer.allocateDirect(nInternalEdges * 2 * 3 * 8)
                .order(ByteOrder.nativeOrder())
                .asDoubleBuffer();
        // create edge coords
        for (Iterator<EdgeLine> it = internalEdges.keySet().iterator(); it.hasNext(); ) {
          EdgeLine el = it.next();
          nioInternalEdges.put(el.getCoords(grid));
        }
        LineArray la =
            new NioLineArray(nInternalEdges * 2, GeometryArray.COORDINATES | GeometryArray.COLOR_3);
        la.setCoordRefBuffer(new J3DBuffer(nioInternalEdges));
        int colSize = nInternalEdges * 2 * 3;
        FloatBuffer nioInternalColors =
            ByteBuffer.allocateDirect(colSize * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();
        float[] colors = getColorForOrder(g, 2);
        for (int i = 0; i < colSize; i += 3) nioInternalColors.put(colors);
        la.setColorRefBuffer(new J3DBuffer(nioInternalColors));
        la.setUserData(new int[] {g, 2});
        a = new Appearance();
        // pa = new PolygonAttributes(PolygonAttributes.POLYGON_LINE,
        // PolygonAttributes.CULL_NONE, 0);
        // pa.setPolygonOffset(4);
        // pa.setPolygonOffsetFactor(4);
        // a.setPolygonAttributes(pa);
        // LineAttributes lat = new LineAttributes();
        // lat.setLineAntialiasingEnable(true);
        // a.setLineAttributes(lat);
        // RenderingAttributes ra = new RenderingAttributes();
        // ra.setAlphaTestFunction(RenderingAttributes.GREATER);
        // ra.setAlphaTestValue(0.5f);
        // a.setRenderingAttributes(ra);
        s3d = new Shape3D(la, a);
        PickTool.setCapabilities(s3d, PickTool.INTERSECT_FULL);
        s3d.setCapability(Shape3D.ALLOW_APPEARANCE_READ);
        s3d.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
        s3d.setCapability(Node.ALLOW_PICKABLE_READ);
        s3d.setCapability(Node.ALLOW_PICKABLE_WRITE);
        s3d.setPickable(false); // by default, see actions
        s3d.setUserData(this); // this object will handle edges
        this.addChild(s3d);
        allEdgeShapes.add(s3d);
      }
      // Now, create external edge
      int nExternalEdges = 0;
      for (Iterator<EdgeLine> it = externalEdges.keySet().iterator(); it.hasNext(); ) {
        EdgeLine el = it.next();
        nExternalEdges += el.getNumberOfEdges();
      }
      if (nExternalEdges > 0) {
        DoubleBuffer nioExternalEdges =
            ByteBuffer.allocateDirect(nExternalEdges * 2 * 3 * 8)
                .order(ByteOrder.nativeOrder())
                .asDoubleBuffer();
        // create edge coords
        for (Iterator<EdgeLine> it = externalEdges.keySet().iterator(); it.hasNext(); ) {
          EdgeLine el = it.next();
          nioExternalEdges.put(el.getCoords(grid));
        }
        LineArray la =
            new NioLineArray(nExternalEdges * 2, GeometryArray.COORDINATES | GeometryArray.COLOR_3);
        la.setCoordRefBuffer(new J3DBuffer(nioExternalEdges));
        int colSize = nExternalEdges * 2 * 3;
        FloatBuffer nioExternalColors =
            ByteBuffer.allocateDirect(colSize * 4).order(ByteOrder.nativeOrder()).asFloatBuffer();
        float[] colors = getColorForOrder(g, 4);
        for (int i = 0; i < colSize; i += 3) nioExternalColors.put(colors);
        la.setColorRefBuffer(new J3DBuffer(nioExternalColors));
        la.setUserData(new int[] {g, 4});
        a = new Appearance();
        // pa = new PolygonAttributes(PolygonAttributes.POLYGON_LINE,
        // PolygonAttributes.CULL_NONE, 0);
        // pa.setPolygonOffset(3);
        // pa.setPolygonOffsetFactor(3);
        // a.setPolygonAttributes(pa);
        s3d = new Shape3D(la, a);
        PickTool.setCapabilities(s3d, PickTool.INTERSECT_FULL);
        s3d.setCapability(Shape3D.ALLOW_APPEARANCE_READ);
        s3d.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE);
        s3d.setCapability(Node.ALLOW_PICKABLE_READ);
        s3d.setCapability(Node.ALLOW_PICKABLE_WRITE);
        s3d.setPickable(false); // by default, see actions
        s3d.setUserData(this); // this object will handle edges
        this.addChild(s3d);
        allEdgeShapes.add(s3d);
      }
      totalQuads += plates.length;
      totalInternalEdges += nInternalEdges;
      totalExternalEdges += nExternalEdges;
    }
    System.out.println("Total quads: " + totalQuads);
    System.out.println("Total Internal Plate edges: " + totalInternalEdges);
    System.out.println("Total External Plate edges: " + totalExternalEdges);
  }