public ObjectViewer(URL url) {
setLayout(new BorderLayout());
Canvas3D canvas3D = new Canvas3D(SimpleUniverse.getPreferredConfiguration());
add("Center", canvas3D);
BoundingSphere bounds = new BoundingSphere(new Point3d(), 1000);
BranchGroup root = new BranchGroup();
BranchGroup scene = createSceneGraph(url);
scene.setBoundsAutoCompute(true);
System.out.println(scene.getBounds());
BoundingSphere sceneBounds = new BoundingSphere(scene.getBounds());
SimpleUniverse univ = new SimpleUniverse(canvas3D);
ViewingPlatform view = univ.getViewingPlatform();
view.setNominalViewingTransform();
Transform3D t = new Transform3D();
TransformGroup viewTransform = view.getViewPlatformTransform();
t.set(new Vector3d(0, 0, 3 * sceneBounds.getRadius()));
viewTransform.setTransform(t);
BranchGroup lights = new BranchGroup();
Light light = new AmbientLight();
light.setInfluencingBounds(bounds);
lights.addChild(light);
light = new DirectionalLight();
light.setInfluencingBounds(bounds);
lights.addChild(light);
root.addChild(lights);
TransformGroup tg = new TransformGroup();
tg.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
tg.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
tg.addChild(scene);
root.addChild(tg);
MouseRotate mouse = new MouseRotate();
mouse.setTransformGroup(tg);
mouse.setSchedulingBounds(bounds);
root.addChild(mouse);
MouseZoom mousezoom = new MouseZoom();
mousezoom.setTransformGroup(tg);
mousezoom.setSchedulingBounds(bounds);
root.addChild(mousezoom);
Background background = new Background(1, 1, 1);
background.setApplicationBounds(bounds);
root.addChild(background);
root.compile();
univ.addBranchGraph(root);
}
public void zoomAll() {
bounds = new BoundingSphere();
boolean first = true;
for (VisualShape v : drawModel.getPicture()) {
Bounds b = getBounds(v);
if (first) bounds.set(b);
else bounds.combine(getBounds(v));
first = false;
}
bounds.getCenter(center);
scale = 1.0f / 1.3f / (float) bounds.getRadius();
updateView();
}
public float getViewPlatformDistance(BranchGroup scene, Component canvas, View view) {
BoundingSphere sceneSphere = getBoundingSphere(scene);
double sceneRadius = sceneSphere.getRadius();
double borderFactor = 1.3;
double ratioFactor = 1.0;
int canvasWidth = canvas.getWidth();
int canvasHeight = canvas.getHeight();
if (canvasWidth > canvasHeight) {
ratioFactor = (double) canvasWidth / canvasHeight;
}
double distance =
ratioFactor * borderFactor * sceneRadius / Math.tan(view.getFieldOfView() / 2);
return (float) distance;
}
protected void createViewBranch() {
TransformGroup viewTG = new TransformGroup();
viewTG.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
ViewPlatform viewPlatform = new ViewPlatform();
view = new View();
view.setBackClipDistance(30000);
view.addCanvas3D(canvas);
view.setPhysicalBody(new PhysicalBody());
view.setPhysicalEnvironment(new PhysicalEnvironment());
view.attachViewPlatform(viewPlatform);
float halfRadius = (float) (getBoundingSphere(sceneBranchGroup).getRadius() / 2f);
Point3d center = new Point3d();
getBoundingSphere(sceneBranchGroup).getCenter(center);
BoundingSphere globalBounds = new BoundingSphere();
globalBounds.setRadius(Double.MAX_VALUE);
orbitBehaviorInterim =
new OrbitBehaviorInterim(
canvas,
viewTG,
OrbitBehaviorInterim.REVERSE_ROTATE | OrbitBehaviorInterim.REVERSE_TRANSLATE);
orbitBehaviorInterim.setRotationCenter(center);
orbitBehaviorInterim.setViewingTransform(
new Point3d(
halfRadius, getViewPlatformDistance(sceneBranchGroup, canvas, view), halfRadius),
center,
new Vector3d(0, -1, 0),
true);
orbitBehaviorInterim.setVpView(view);
orbitBehaviorInterim.setTransFactors(3.0, 3.0);
orbitBehaviorInterim.setSchedulingBounds(globalBounds);
viewTG.addChild(viewPlatform);
viewTG.addChild(orbitBehaviorInterim);
viewBranchGroup.addChild(viewTG);
}
public double getObjRadius() {
return bs.getRadius();
}
public Point3d getObjCenter() {
Point3d objCenter = new Point3d();
bs.getCenter(objCenter);
return objCenter;
}
private MyPickResult getMouseIntersection(MouseEvent e, boolean withSnap) {
MyPickResult myResult = new MyPickResult();
Point3d closestObjectPos = null;
Point3d closestMarkPos = null;
Node closestObject = null;
Node closestMark = null;
// 0: closest object; 1: closest mark
pickCanvas.setShapeLocation(e);
PickResult[] allResults = null;
try {
allResults = pickCanvas.pickAllSorted();
} catch (AssertionError ex) {
}
if (allResults != null) {
for (PickResult result : allResults) {
Shape3D s = (Shape3D) result.getNode(PickResult.SHAPE3D);
if (s != null) { // only pick a Shape3D object
if (closestObjectPos != null && closestMarkPos != null) {
break;
}
try {
PickIntersection intersection = result.getClosestIntersection(cameraPos);
if (!(s.getParent().getParent().getParent() instanceof Mark)
&& !((s.getParent().getParent().getParent() instanceof Marker))) {
// markdot/markline/label -> TG -> BG -> Mark/Marker
try {
closestObjectPos = intersection.getPointCoordinatesVW();
closestObject = s;
} catch (NullPointerException ex) {
}
} else if ((s.getParent().getParent().getParent() instanceof Mark)) {
try {
closestMarkPos = intersection.getPointCoordinatesVW();
closestMark = s;
} catch (NullPointerException ex) {
}
}
} catch (NullPointerException ex) {
}
}
}
Point3d resultPos = null;
Node resultNode = null;
if (closestMark != null) {
resultPos = closestMarkPos; // priority of result -> mark
resultNode = closestMark;
} else if (closestObject != null) {
resultPos = closestObjectPos;
resultNode = closestObject;
}
if (withSnap) { // snap resultPos to correct position
// start trying to if cursor are inside object bounding sphere
if ((closestObjectPos != null && bs.intersect(closestObjectPos))
|| closestMarkPos != null && bs.intersect(closestMarkPos)) {
Point3d closestObjectPos2 = null;
Point3d closestMarkPos2 = null;
Node closestObject2 = null;
Node closestMark2 = null;
// initiate snap bounds if hasn't been initiated before
// "snappable" targets to be considered are the ones inside threshold
if (cursorBound == null) {
cursorBound = new BoundingSphere(resultPos, CURSOR_THRESHOLD);
}
if (thresholdBound == null) {
thresholdBound = new BoundingSphere(resultPos, SNAP_THRESHOLD);
}
// update the bounds
// only if the cursor is no longer inside current cursor bounds
if (!cursorBound.intersect(resultPos)) {
cursorBound.setCenter(resultPos);
thresholdBound.setCenter(resultPos);
}
// snap to nearest point in the list of snap targets
double nearestDistance = FARTHEST;
double distance;
Point3d nearestTarget = null;
// snap to vertex. all vertexes listed in snapList
if (snapList.size() > 0) {
for (Point3d snapTarget : snapList) {
if (thresholdBound.intersect(snapTarget)) {
distance = snapTarget.distance(resultPos);
if (distance < nearestDistance) {
nearestDistance = distance;
nearestTarget = snapTarget;
}
if (nearestTarget != null) {
resultPos.set(nearestTarget); // snap!
// pick the snapped node
Vector3d camToSnapped = new Vector3d();
camToSnapped.x = resultPos.x - cameraPos.x;
camToSnapped.y = resultPos.y - cameraPos.y;
camToSnapped.z = resultPos.z - cameraPos.z;
pickCanvas.setShapeRay(cameraPos, camToSnapped);
PickResult[] allResultsSnapped = null;
try {
allResultsSnapped = pickCanvas.pickAllSorted();
} catch (AssertionError ex) {
}
if (allResultsSnapped != null) {
for (PickResult result : allResultsSnapped) {
Shape3D s = (Shape3D) result.getNode(PickResult.SHAPE3D);
if (s != null) { // only pick a Shape3D object
if (closestObjectPos2 != null && closestMarkPos2 != null) {
break;
}
try {
PickIntersection intersection = result.getClosestIntersection(cameraPos);
if (!(s.getParent().getParent().getParent() instanceof Mark)
&& !((s.getParent().getParent().getParent() instanceof Marker))) {
// markdot/markline/label -> TG -> BG -> Mark/Marker
try {
closestObjectPos2 = intersection.getPointCoordinatesVW();
closestObject2 = s;
} catch (NullPointerException ex) {
}
} else if ((s.getParent().getParent().getParent() instanceof Mark)) {
try {
closestMarkPos2 = intersection.getPointCoordinatesVW();
closestMark2 = s;
} catch (NullPointerException ex) {
}
}
} catch (NullPointerException ex) {
}
}
}
if (closestMark2 != null) {
resultPos = closestMarkPos2; // priority of result -> mark
resultNode = closestMark2;
} else if (closestObject2 != null) {
resultPos = closestObjectPos2;
resultNode = closestObject2;
}
}
}
}
}
}
}
}
myResult.setPoint(resultPos);
myResult.setNode(resultNode);
}
return myResult;
}