Prob. Objects with same x,y,z coordinates appear at different positions

Question

Hello,
I am having a problem where I have multiple objects with the same x,y,z coordinates but they appear at different positions on the screen. Could this have anything to do with scaling as I scale different types of objects differently. Also, I am using the simple Universe class and the objects that have the problem are added to the Universe when the program is running.
CB

Answer 1

I have encoutered this problem in two occaisions. I have ships that fire bullets. When the bullets are created they are not in the same position as the ship that fired them even though they have the same translation vector.
Here is the constructor for the Bullet--------------------------------
The transform3D passed in is the transform3D from the ship------------
public Bullet(Transform3D temp3d, BoundingSphere bounds) {
     // Create the root of the branch graph
     root = new BranchGroup();
// Create a Transformgroup to scale
tScale = new TransformGroup();
tempTrans = new Transform3D();
tempTrans.setScale(0.2);
tScale.setTransform(tempTrans);
     //create the main transform and attach the shape
transRoot = new TransformGroup();
transRoot.setCapability(TransformGroup.ALLOW_TRANSFORM_WRITE);
     transRoot.setCapability(TransformGroup.ALLOW_TRANSFORM_READ);
     transRoot.addChild(new ColorCube(0.4));
trans3d = new Transform3D(temp3d);
transRoot.setTransform(trans3d);
     //setup behaviour
BulletBehaviour myBehavior = new BulletBehaviour(transRoot, trans3d);
myBehavior.setSchedulingBounds(bounds);
transRoot.addChild(myBehavior);
     // Connect up graph
     tScale.addChild(transRoot);
     root.addChild(tScale);
     //root.addChild(transRoot);
root.compile();
} // end of Cube (constructor)
The other occaision when I find this problem is when comparing the position of two objects a target and a ship.
Check out this web page for pictures and debuging output.
http://www.sfu.ca/~ceden/java3d/snapshots.htm