public BranchGroup addTriangle(Simplex simplex, Color3f color) { int[] p = simplex.getPoints(); BranchGroup bgTriangle = new BranchGroup(); bgTriangle.setCapability(BranchGroup.ALLOW_DETACH); javax.vecmath.Point3d[] coords = new javax.vecmath.Point3d[6]; TriangleArray ta = new TriangleArray(6, TriangleArray.COORDINATES | TriangleArray.COLOR_3); Point3d p0 = (Point3d) complex.getPoints().get(simplex.getPoints()[0]); Point3d p1 = (Point3d) complex.getPoints().get(simplex.getPoints()[1]); Point3d p2 = (Point3d) complex.getPoints().get(simplex.getPoints()[2]); coords[0] = new javax.vecmath.Point3d(p0.getX(), p0.getY(), p0.getZ()); coords[1] = new javax.vecmath.Point3d(p1.getX(), p1.getY(), p1.getZ()); coords[2] = new javax.vecmath.Point3d(p2.getX(), p2.getY(), p2.getZ()); coords[3] = new javax.vecmath.Point3d(p0.getX(), p0.getY(), p0.getZ()); coords[4] = new javax.vecmath.Point3d(p2.getX(), p2.getY(), p2.getZ()); coords[5] = new javax.vecmath.Point3d(p1.getX(), p1.getY(), p1.getZ()); ta.setCoordinates(0, coords); Color3f[] colors = new Color3f[6]; for (int i = 0; i < 3; i++) colors[i] = Colors.black; for (int i = 3; i < 6; i++) colors[i] = Colors.yellow; ta.setColors(0, colors); Appearance ap = new Appearance(); ap.setCapability(Appearance.ALLOW_LINE_ATTRIBUTES_READ); ap.setCapability(Appearance.ALLOW_LINE_ATTRIBUTES_WRITE); ap.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_READ); ap.setCapability(Appearance.ALLOW_COLORING_ATTRIBUTES_WRITE); ap.setLineAttributes(new LineAttributes(2, LineAttributes.PATTERN_SOLID, false)); ap.setMaterial(new Material()); ap.setTransparencyAttributes( new TransparencyAttributes(TransparencyAttributes.SCREEN_DOOR, 0.5f)); Shape3D shape = new Shape3D(ta, ap); shape.setCapability(Shape3D.ALLOW_APPEARANCE_READ); shape.setCapability(Shape3D.ALLOW_APPEARANCE_WRITE); simplex.setTriangle(shape); // simplex.bgTriangle = bgTriangle; TransformGroup tgTriangle = new TransformGroup(); tgTriangle.addChild(shape); bgTriangle.addChild(tgTriangle); spin.addChild(bgTriangle); return bgTriangle; }