How to get 3d coordinated by clicking on the universe?

Question

Hi!
I've realized a simple java3d program generates a 3d graph from an XML file.
Once created the 3d universe, I need to get the coordinates (x,y,z) of the objects on which I click with the mouse.
Currently my class can only recognize what kind is the object on which I click.
Here is the source of class:
     public void mouseClicked(MouseEvent e)
     pickCanvas.setShapeLocation(e);
     PickResult result = pickCanvas.pickClosest();
     if (result == null) {
     System.out.println("Nothing picked");
     } else {
     Primitive p = (Primitive)result.getNode(PickResult.PRIMITIVE);
     Shape3D s = (Shape3D)result.getNode(PickResult.SHAPE3D);
     if (p != null) {
     System.out.println(p.getClass().getName());
     } else if (s != null) {
     System.out.println(s.getClass().getName());
     } else{
     System.out.println("null");
I'm new in the 3d programming and probably the code is not perfect ..
Can someone kindly help me?
Thanks in advance!
Jacopo

Answer 1

Hi,
in the code below v gets the position of the Node (Shape and Primitive are both Nodes).
Node n = result.getNode();
Transform3D t = new Transform3D();
Vector3d v = new Vector3d();
n.getLocalToVworld( t );
t.get( v);Edited by: leha23 on Oct 2, 2008 7:47 AM