Hi, I have a behavior problem in my program.
I implemented variations of PickTranslateBehavior & PickRotateBehavior and they worked
fine, until I changed from a SimpleUniverse to my own custom one in order to allow for
multiple 'viewports'. I will show a segment of the 'before' & 'after' code, if anyone
could help I would appreciate it very much.
Regards, Ben
BEFORE
.................
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
c = new Canvas3D(config);
scene = createSceneGraph();
u = new SimpleUniverse(c);
viewPlatform = u.getViewingPlatform();
orbit = new OrbitBehavior(c);
orbit.setSchedulingBounds(infiniteBounds);
.................
public BranchGroup createSceneGraph() {
BranchGroup objRoot = new BranchGroup();
behavior1 = new MyPickTranslateBehavior(objRoot, c, infiniteBounds);
objRoot.addChild(behavior1);
AFTER
GraphicsConfiguration config = SimpleUniverse.getPreferredConfiguration();
c = new Canvas3D[numViews];
u = new BasicUniverse(numViews);
scene = createSceneGraph();
for(int s = 0; s < numViews; s++) {
c[s] = new Canvas3D(config);
}
u.addBranchGraph(u.setupView(c[0], viewTransform1));
u.addBranchGraph(u.setupView(c[1], viewTransform2));
orbit = new OrbitBehavior(c[0]); //doesnt work anymore
orbit.setSchedulingBounds(infiniteBounds);
.................
public BranchGroup createSceneGraph() {
BranchGroup objRoot = new BranchGroup();
behavior1 = new MyPickTranslateBehavior(objRoot, c[0], infiniteBounds); //doesnt
work anymore
objRoot.addChild(behavior1);
// THE BASIC UNIVERSE SOURCE CODE
public class BasicUniverse extends Object implements Constants {
VirtualUniverse universe;
ViewPlatform viewPlatform;
TransformGroup[] transformGroup;
Locale locale;
View view;
int currentCanvas = 0;
public BasicUniverse(int numCanvases) {
universe = new VirtualUniverse();
locale = new Locale(universe);
transformGroup = new TransformGroup[numCanvases];
}
public BranchGroup setupView(Canvas3D extCanvas, Transform3D t){
viewPlatform = new ViewPlatform();
view = new View();
view.addCanvas3D(extCanvas);
view.setPhysicalBody(new PhysicalBody());
view.setPhysicalEnvironment(new PhysicalEnvironment());
view.setBackClipDistance(5000);
view.attachViewPlatform(viewPlatform);
transformGroup[currentCanvas] = new TransformGroup();
transformGroup[currentCanvas].setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
transformGroup[currentCanvas].setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
transformGroup[currentCanvas].setTransform(t);
transformGroup[currentCanvas].addChild(viewPlatform);
BranchGroup toReturn = new BranchGroup();
toReturn.addChild(transformGroup[currentCanvas]);
currentCanvas++;
return toReturn;
}
public void addBranchGraph(BranchGroup bg) {
locale.addBranchGraph(bg);
}
public void setView(Transform3D t, int canvas) {
transformGroup[canvas].setTransform(t);
}
public Transform3D getViewTransform(int canvas){
Transform3D temp = new Transform3D();
transformGroup[canvas].getTransform(temp);
return temp;
}
public void setViewBehavior(Behavior b) { // am i on the right track????
//viewPlatform.setViewPlatformBehavior(b);
}
public View getView() {
return view;
}
}
Any queries, dont hesitate to ask, basically if i debug on picking i just get
nullpointerexceptions now, which i assume means it isnt finding the shape, i have
highlighted where the problem is. Any ideas, anyone???
Thanks
