List of usage examples for javax.media.j3d TransformGroup ALLOW_TRANSFORM_WRITE
int ALLOW_TRANSFORM_WRITE
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From source file:SimpleGeometry.java
PlatformGeometry createAimer() {
PlatformGeometry pg = new PlatformGeometry();
// This TransformGroup will be used by the MouseTranslate
// utiltiy to move the cylinder around the canvas. when the
// the user holds down mouse button 3.
TransformGroup moveTG = new TransformGroup();
moveTG.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
moveTG.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
MouseTranslate mouseT = new MouseTranslate(moveTG);
moveTG.addChild(mouseT);//from w w w. j a v a 2 s . c o m
BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0);
mouseT.setSchedulingBounds(bounds);
pg.addChild(moveTG);
// This TransformGroup is used to place the cylinder in the scene.
// The cylinder will be rotated 90 degrees so it will appear as
// a circle on the screen (could be made into a nice gun site...).
// The cylinder is also displaced a little in Z so it is in front
// of the viewer.
Transform3D xForm = new Transform3D();
xForm.rotX(Math.PI / 2.0);
xForm.setTranslation(new Vector3d(0.0, 0.0, -0.7));
TransformGroup placementTG = new TransformGroup(xForm);
moveTG.addChild(placementTG);
// Create the cylinder - make it thin and transparent.
Appearance cylinderAppearance = new Appearance();
TransparencyAttributes transAttrs = new TransparencyAttributes(TransparencyAttributes.FASTEST, 0.5f);
// cylinderAppearance.setTransparencyAttributes(transAttrs);
Cylinder aimer = new Cylinder(0.06f, 0.005f, 0, cylinderAppearance);
placementTG.addChild(aimer);
return pg;
}
From source file:PolygonOffset.java
public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); // Create the transform group node and initialize it to the // identity. Enable the TRANSFORM_WRITE capability so that // our behavior code can modify it at runtime. Add it to the // root of the subgraph. TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objRoot.addChild(objTrans);//from w ww . j av a 2 s .c o m // Create a Sphere. We will display this as both wireframe and // solid to make a hidden line display // wireframe Appearance wireApp = new Appearance(); ColoringAttributes wireCa = new ColoringAttributes(); wireCa.setColor(black); wireApp.setColoringAttributes(wireCa); wirePa = new PolygonAttributes(PolygonAttributes.POLYGON_LINE, PolygonAttributes.CULL_BACK, 0.0f); wireApp.setPolygonAttributes(wirePa); Sphere outWireSphere = new Sphere(sphereRadius, 0, 15, wireApp); objTrans.addChild(outWireSphere); // solid ColoringAttributes outCa = new ColoringAttributes(red, ColoringAttributes.SHADE_FLAT); Appearance outSolid = new Appearance(); outSolid.setColoringAttributes(outCa); solidPa = new PolygonAttributes(PolygonAttributes.POLYGON_FILL, PolygonAttributes.CULL_BACK, 0.0f); solidPa.setPolygonOffsetFactor(dynamicOffset); solidPa.setPolygonOffset(staticOffset); solidPa.setCapability(PolygonAttributes.ALLOW_OFFSET_WRITE); outSolid.setPolygonAttributes(solidPa); Sphere outSolidSphere = new Sphere(sphereRadius, 0, 15, outSolid); objTrans.addChild(outSolidSphere); innerTG = new TransformGroup(); innerTG.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); scale = new Transform3D(); updateInnerScale(); objTrans.addChild(innerTG); // Create a smaller sphere to go inside. This sphere has a different // tesselation and color Sphere inWireSphere = new Sphere(sphereRadius, 0, 10, wireApp); innerTG.addChild(inWireSphere); // inside solid ColoringAttributes inCa = new ColoringAttributes(blue, ColoringAttributes.SHADE_FLAT); Appearance inSolid = new Appearance(); inSolid.setColoringAttributes(inCa); inSolid.setPolygonAttributes(solidPa); Sphere inSolidSphere = new Sphere(sphereRadius, 0, 10, inSolid); innerTG.addChild(inSolidSphere); // Create a new Behavior object that will perform the desired // operation on the specified transform object and add it into // the scene graph. AxisAngle4f axisAngle = new AxisAngle4f(0.0f, 0.0f, 1.0f, -(float) Math.PI / 2.0f); Transform3D yAxis = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 80000, 0, 0, 0, 0, 0); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI * 2.0f); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); rotator.setSchedulingBounds(bounds); objTrans.addChild(rotator); // set up a white background Background bgWhite = new Background(new Color3f(1.0f, 1.0f, 1.0f)); bgWhite.setApplicationBounds(bounds); objTrans.addChild(bgWhite); // Have Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; }
From source file:ModelClipTest2.java
public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); // Create a Transformgroup to scale all objects so they // appear in the scene. TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.4);/*from ww w . j a v a 2 s. c o m*/ objScale.setTransform(t3d); objRoot.addChild(objScale); // Create lights BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); //Shine it with two colored lights. Color3f lColor0 = new Color3f(1.0f, 1.0f, 1.0f); Color3f lColor1 = new Color3f(0.5f, 0.0f, 0.5f); Color3f lColor2 = new Color3f(0.7f, 0.7f, 0.0f); Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, 1.0f); Vector3f lDir2 = new Vector3f(0.0f, 0.0f, -1.0f); AmbientLight lgt0 = new AmbientLight(true, lColor2); DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1); DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2); lgt0.setInfluencingBounds(bounds); lgt1.setInfluencingBounds(bounds); lgt2.setInfluencingBounds(bounds); objScale.addChild(lgt0); objScale.addChild(lgt1); objScale.addChild(lgt2); // Create a Transformgroup for the geometry TransformGroup objRot = new TransformGroup(); Transform3D t3d1 = new Transform3D(); AxisAngle4f rot1 = new AxisAngle4f(0.0f, 1.0f, 0.0f, 45.0f); t3d1.setRotation(rot1); objRot.setTransform(t3d1); objScale.addChild(objRot); //Create a cylinder PolygonAttributes attr = new PolygonAttributes(); attr.setCullFace(PolygonAttributes.CULL_NONE); Appearance ap = new Appearance(); Material mat = new Material(); mat.setLightingEnable(true); ap.setMaterial(mat); ap.setPolygonAttributes(attr); Cylinder CylinderObj = new Cylinder(0.5f, 2.2f, ap); objRot.addChild(CylinderObj); //Create a box Box BoxObj = new Box(0.8f, 0.8f, 0.8f, ap); objRot.addChild(BoxObj); // This Transformgroup is used by the mouse manipulators to // move the model clip planes. TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); objRot.addChild(objTrans); // Create the rotate behavior node MouseRotate behavior = new MouseRotate(objTrans); objTrans.addChild(behavior); behavior.setSchedulingBounds(bounds); // Create the zoom behavior node MouseZoom behavior2 = new MouseZoom(objTrans); objTrans.addChild(behavior2); behavior2.setSchedulingBounds(bounds); //Create Model Clip ModelClip mc = new ModelClip(); boolean enables[] = { false, false, false, false, false, false }; Vector4d eqn = new Vector4d(0.0, 1.0, 1.0, 0.0); mc.setEnables(enables); mc.setPlane(1, eqn); mc.setEnable(1, true); mc.setInfluencingBounds(bounds); objTrans.addChild(mc); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; }
From source file:BoundsTest.java
protected BranchGroup createSceneBranchGroup() { BranchGroup objRoot = super.createSceneBranchGroup(); // do NOT auto compute bounds for this node objRoot.setBoundsAutoCompute(false); TransformGroup objTrans = new TransformGroup(); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); Transform3D yAxis = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans, yAxis, 0.0f, (float) Math.PI * 2.0f); rotator.setSchedulingBounds(createApplicationBounds()); objTrans.addChild(rotator);//from ww w. j a v a2 s. com objTrans.addChild(createColorCubes()); objTrans.addChild(createPoints()); objRoot.addChild(objTrans); return objRoot; }
From source file:MultiTextureTest.java
public BranchGroup createSceneGraph() { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); // Create a Transformgroup to scale all objects so they // appear in the scene. TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.4);//w w w . ja va 2 s .c o m objScale.setTransform(t3d); objRoot.addChild(objScale); TransformGroup objTrans = new TransformGroup(); //write-enable for behaviors objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); objTrans.setCapability(TransformGroup.ENABLE_PICK_REPORTING); objScale.addChild(objTrans); Appearance ap = new Appearance(); // load textures TextureAttributes texAttr1 = new TextureAttributes(); texAttr1.setTextureMode(TextureAttributes.DECAL); TextureAttributes texAttr2 = new TextureAttributes(); texAttr2.setTextureMode(TextureAttributes.MODULATE); TextureLoader tex = new TextureLoader(stoneImage, new String("RGB"), this); if (tex == null) return null; stoneTex = tex.getTexture(); tex = new TextureLoader(skyImage, new String("RGB"), this); if (tex == null) return null; skyTex = tex.getTexture(); lightTex = createLightMap(); textureUnitState[0] = new TextureUnitState(stoneTex, texAttr1, null); textureUnitState[0].setCapability(TextureUnitState.ALLOW_STATE_WRITE); textureUnitState[1] = new TextureUnitState(lightTex, texAttr2, null); textureUnitState[1].setCapability(TextureUnitState.ALLOW_STATE_WRITE); ap.setTextureUnitState(textureUnitState); //Create a Box Box BoxObj = new Box(1.5f, 1.5f, 0.8f, Box.GENERATE_NORMALS | Box.GENERATE_TEXTURE_COORDS, ap, 2); // add it to the scene graph. objTrans.addChild(BoxObj); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); //Shine it with two lights. Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f); Color3f lColor2 = new Color3f(0.2f, 0.2f, 0.1f); Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f); Vector3f lDir2 = new Vector3f(0.0f, 0.0f, -1.0f); DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1); DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2); lgt1.setInfluencingBounds(bounds); lgt2.setInfluencingBounds(bounds); objScale.addChild(lgt1); objScale.addChild(lgt2); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; }
From source file:TickTockPicking.java
public BranchGroup createSceneGraph(Canvas3D c) { // Create the root of the branch graph BranchGroup objRoot = new BranchGroup(); // Create a Transformgroup to scale all objects so they // appear in the scene. TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setScale(0.4);//w w w. j a v a 2s. c o m objScale.setTransform(t3d); objRoot.addChild(objScale); // Create a bounds for the background and behaviors BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); // Set up the background Color3f bgColor = new Color3f(0.05f, 0.05f, 0.2f); Background bg = new Background(bgColor); bg.setApplicationBounds(bounds); objScale.addChild(bg); // Set up the global lights Color3f lColor1 = new Color3f(0.7f, 0.7f, 0.7f); Vector3f lDir1 = new Vector3f(-1.0f, -1.0f, -1.0f); Color3f alColor = new Color3f(0.2f, 0.2f, 0.2f); AmbientLight aLgt = new AmbientLight(alColor); aLgt.setInfluencingBounds(bounds); DirectionalLight lgt1 = new DirectionalLight(lColor1, lDir1); lgt1.setInfluencingBounds(bounds); objScale.addChild(aLgt); objScale.addChild(lgt1); // Create a pair of transform group nodes and initialize them to // identity. Enable the TRANSFORM_WRITE capability so that // our behaviors can modify them at runtime. Add them to the // root of the subgraph. TransformGroup objTrans1 = new TransformGroup(); objTrans1.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objScale.addChild(objTrans1); TransformGroup objTrans2 = new TransformGroup(); objTrans2.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans1.addChild(objTrans2); // Create the positioning and scaling transform group node. Transform3D t = new Transform3D(); t.set(0.3, new Vector3d(0.0, -1.5, 0.0)); TransformGroup objTrans3 = new TransformGroup(t); objTrans2.addChild(objTrans3); // Create a simple shape leaf node, set it's appearance, and // add it to the scene graph. Shape3D shape = new Cube(); Appearance a = new Appearance(); Color3f black = new Color3f(0.0f, 0.0f, 0.0f); Color3f white = new Color3f(1.0f, 1.0f, 1.0f); Color3f objColor = new Color3f(0.8f, 0.0f, 0.0f); a.setMaterial(new Material(objColor, black, objColor, white, 80.0f)); shape.setAppearance(a); shape.setCapability(shape.ALLOW_APPEARANCE_READ); shape.setCapability(shape.ALLOW_APPEARANCE_WRITE); objTrans3.addChild(shape); // Create a new Behavior object that will perform the desired // rotation on the specified transform object and add it into // the scene graph. Transform3D yAxis1 = new Transform3D(); yAxis1.rotX(Math.PI / 2.0); Alpha tickTockAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE | Alpha.DECREASING_ENABLE, 0, 0, 5000, 2500, 200, 5000, 2500, 200); RotationInterpolator tickTock = new RotationInterpolator(tickTockAlpha, objTrans1, yAxis1, -(float) Math.PI / 2.0f, (float) Math.PI / 2.0f); tickTock.setSchedulingBounds(bounds); objTrans2.addChild(tickTock); // Create a new Behavior object that will perform the desired // rotation on the specified transform object and add it into // the scene graph. Transform3D yAxis2 = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, Alpha.INCREASING_ENABLE, 0, 0, 4000, 0, 0, 0, 0, 0); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objTrans2, yAxis2, 0.0f, (float) Math.PI * 2.0f); rotator.setSchedulingBounds(bounds); objTrans2.addChild(rotator); // Now create the simple picking behavior PickHighlightBehavior pickBeh = new PickHighlightBehavior(c, objRoot, bounds); // Create a bunch of objects with a behavior and add them // into the scene graph. int row, col; Appearance[][] app = new Appearance[3][3]; for (row = 0; row < 3; row++) for (col = 0; col < 3; col++) app[row][col] = createAppearance(row * 3 + col); for (int i = 0; i < 3; i++) { double ypos = (double) (i - 1) * 1.5; for (int j = 0; j < 3; j++) { double xpos = (double) (j - 1) * 1.5; objScale.addChild(createObject(app[i][j], 0.3, xpos, ypos)); } } // Have Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; }
From source file:TextureTransformTest.java
private TransformGroup createRotator() { // create a ColorCube to illustrate the current rotation TransformGroup transTg = new TransformGroup(); Transform3D t3d = new Transform3D(); t3d.setTranslation(new Vector3d(-70, -70, 50)); transTg.setTransform(t3d);/*from ww w .java2s .c om*/ TransformGroup subTg = new TransformGroup(); subTg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); subTg.addChild(new ColorCube(10.0)); // attach a MouseRotate behavior so we can // rotate the color cube with the left mouse button MouseRotate mouseRot = new MouseRotate(subTg); subTg.addChild(mouseRot); // assign a transformChanged callback as we want to be // notified whenever the rotation of the ColorCube // changed ("this" implements MouseBehaviorCallback ); mouseRot.setupCallback(this); mouseRot.setSchedulingBounds(getApplicationBounds()); transTg.addChild(subTg); return transTg; }
From source file:edu.uci.ics.jung.visualization3d.VisualizationViewer.java
public BranchGroup createSceneGraph(final Canvas3D canvas) { objRoot = new BranchGroup(); objRoot.setCapability(Group.ALLOW_CHILDREN_EXTEND); objRoot.setCapability(Group.ALLOW_CHILDREN_WRITE); TransformGroup objScale = new TransformGroup(); Transform3D t3d = new Transform3D(); // t3d.setScale(0.05); objScale.setTransform(t3d);/*from w w w .j a v a 2 s.c om*/ objRoot.addChild(objScale); Transform3D tt = new Transform3D(); tt.setScale(.05); tt.setTranslation(new Vector3f(0, 0, -30.f)); objTrans = new TransformGroup(tt); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objTrans.setCapability(TransformGroup.ALLOW_TRANSFORM_READ); objTrans.setCapability(TransformGroup.ALLOW_CHILDREN_EXTEND); objScale.addChild(objTrans); // objRoot.addChild(objTrans); // Create Colors, Materials, and Appearances. Appearance look = new Appearance(); Color3f objColor = new Color3f(0.7f, 0.7f, 0.7f); Color3f black = new Color3f(0.f, 0.f, 0.f); Color3f white = new Color3f(1.0f, 1.0f, 0.6f); Color3f gray = new Color3f(.2f, .2f, .2f); Color3f red = new Color3f(1.0f, 0, 0); Color3f yellow = new Color3f(1, 1, 0); Material objMaterial = new Material(objColor, black, objColor, white, 100.0f); Material blackMaterial = new Material(objColor, black, black, objColor, 10.0f); Material whiteMaterial = new Material(white, white, white, white, 100.0f); Material grayMaterial = new Material(gray, black, gray, gray, 100.0f); Material redMaterial = new Material(red, black, red, red, 100.0f); Material yellowMaterial = new Material(yellow, black, yellow, yellow, 100); look.setMaterial(new Material(objColor, black, objColor, white, 100.0f)); Appearance blackLook = new Appearance(); blackLook.setMaterial(blackMaterial); Appearance whiteLook = new Appearance(); whiteLook.setMaterial(whiteMaterial); Appearance grayLook = new Appearance(); grayLook.setMaterial(grayMaterial); grayLook.setCapability(Appearance.ALLOW_MATERIAL_READ); grayLook.setCapability(Appearance.ALLOW_MATERIAL_WRITE); final Appearance redLook = new Appearance(); redLook.setMaterial(redMaterial); // vertexLook = redLook; Appearance objLook = new Appearance(); objLook.setMaterial(objMaterial); grayLook = objLook; final Appearance yellowLook = new Appearance(); yellowLook.setMaterial(yellowMaterial); Bounds bounds = new BoundingSphere(new Point3d(), 300); MouseRotate behavior1 = new MouseRotate(); behavior1.setTransformGroup(objTrans); objTrans.addChild(behavior1); behavior1.setSchedulingBounds(bounds); MouseWheelZoom behavior2 = new MouseWheelZoom(); behavior2.setTransformGroup(objTrans); // behavior2.setFactor(10); objTrans.addChild(behavior2); behavior2.setSchedulingBounds(bounds); MouseTranslate behavior3 = new MouseTranslate(); behavior3.setTransformGroup(objTrans); objTrans.addChild(behavior3); behavior3.setSchedulingBounds(bounds); PickTranslateBehavior ptb = new PickTranslateBehavior(objRoot, canvas, bounds, PickTool.GEOMETRY); ptb.setSchedulingBounds(bounds); // objTrans.addChild(ptb); ptb.setupCallback(new PickingCallback() { public void transformChanged(int type, TransformGroup tg) { if (tg == null) return; Transform3D t3d = new Transform3D(); tg.getTransform(t3d); // System.err.println(tg+" transformChanged \n"+t3d); Point3f p1 = new Point3f(); V v = vertexMap.getKey(tg); // Transform3D lvw = new Transform3D(); // tg.getLocalToVworld(lvw); // System.err.println("lvw = \n"+lvw); // lvw.invert(); // System.err.println("invert lvw = \n"+lvw); Point3f p0 = layout.transform(v); // Transform3D vwip = new Transform3D(); // canvas.getVworldToImagePlate(vwip); // System.err.println("vwip=\n"+vwip); // t3d.mul(lvw); t3d.transform(p1); // scale.transform(p1); System.err.println( "change location for vertex " + v + ", transformGroup " + tg + " from " + p0 + " to " + p1); // p1.set(p1.getX()*2,p1.getY()*2,p1.getZ()*2); // layout.setLocation(v, p1); } }); PickSphereBehavior psb = new PickSphereBehavior(objRoot, canvas, bounds); PickVertexBehavior pvb = new PickVertexBehavior(objRoot, canvas, bounds, renderContext.getPickedVertexState()); objTrans.addChild(pvb); pvb.addChangeListener(new ChangeListener() { public void stateChanged(ChangeEvent e) { for (V v : graph.getVertices()) { VertexGroup<V> vg = vertexMap.get(v); Appearance look = redLook; if (renderContext.getPickedVertexState().isPicked(v)) { look = yellowLook; } Node node = vg.getShape(); if (node instanceof Primitive) { ((Primitive) node).setAppearance(look); } } } }); //Shine it with two colored lights. Color3f lColor1 = new Color3f(.5f, .5f, .5f); Color3f lColor2 = new Color3f(1.0f, 1.0f, 1.0f); Vector3f lDir2 = new Vector3f(-1.0f, 0.0f, -1.0f); DirectionalLight lgt2 = new DirectionalLight(lColor2, lDir2); AmbientLight ambient = new AmbientLight(lColor1); lgt2.setInfluencingBounds(bounds); ambient.setInfluencingBounds(bounds); objRoot.addChild(lgt2); objRoot.addChild(ambient); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); // VisRunner runner = new VisRunner((IterativeContext)elayout); // runner.relax(); return objRoot; }
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);//from w w w . ja v a2 s. 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; }
From source file:YoyoPointApp.java
public BranchGroup createSceneGraph() { BranchGroup objRoot = new BranchGroup(); // Create the transform group node and initialize it to the // identity. Enable the TRANSFORM_WRITE capability so that // our behavior code can modify it at runtime. Add it to the // root of the subgraph. TransformGroup objSpin = new TransformGroup(); objSpin.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE); objRoot.addChild(objSpin);//from w w w. jav a 2s .co m objSpin.addChild(new Yoyo()); // Create a new Behavior object that will perform the desired // operation on the specified transform object and add it into // the scene graph. Transform3D yAxis = new Transform3D(); Alpha rotationAlpha = new Alpha(-1, 4000); RotationInterpolator rotator = new RotationInterpolator(rotationAlpha, objSpin); BoundingSphere bounds = new BoundingSphere(new Point3d(0.0, 0.0, 0.0), 100.0); rotator.setSchedulingBounds(bounds); objSpin.addChild(rotator); // Let Java 3D perform optimizations on this scene graph. objRoot.compile(); return objRoot; }