Mouse Event Problem

Question

I need to implement the pseudocode below into a method called cursorNearVertex (xMouse, yMouse). This method should return either a true or false value depending on what part of the canvas the user clicks on. If the user clicks near a graphical vertex (defined in another part of the application not listed) it will return a true value, if they don't click near the vertex it should return a false value. However I don't know what part of the code the method should go in. Any ideas?
/* Simple polygon selection test
     xMouse, yMouse: coordinates of cursor when mouse was clicked
     xArray, yArray: arrays containing the x and y coordinates of a polygon's vertices
     distance: distance between a vertex and the mouse position
     presetMaxDistance: preset distance below which the cursor is considered to be near enough to a vertex
cursorNearVertex(xMouse, yMouse) {
     for each vertex {
          distance = (xMouse - xArray[vertex]) * (xMouse - xArray[vertex]) +
               (yMouse - yArray[vertex]) * (yMouse - yArray[vertex]);
          if (distance < presetMaxDistance)
               return true;
     return false;
// Code for mouse click event
public void serviceMouseEvent(int eventID, int xMousePosition, int yMousePosition)
switch(eventID)
case MouseEvent.MOUSE_CLICKED:
// TO DO: service MOUSE_CLICKED as approriate
break;
case MouseEvent.MOUSE_DRAGGED:
// TO DO: service MOUSE_DRAGGED as approriate
break;
case MouseEvent.MOUSE_PRESSED:
// TO DO: service MOUSE_PRESSED as approriate
break;
case MouseEvent.MOUSE_RELEASED:
// TO DO: service MOUSE_RELEASED as approriate
break;
case MouseEvent.MOUSE_MOVED:
// TO DO: service MOUSE_MOVED as approriate
break;
default:
// TO DO: service "all-other-mouse-states" as approriate
break;
Skeleton app: http://student.soc.staffs.ac.uk/~cmtccc/2dg/SkelApp2DGrel1.zip

Answer 1

This looks like a Java3D question. In which case you might getting better answers to your question if you post it in the Java3d forum.
http://forum.java.sun.com/forum.jsp?forum=21
On my limited Java3d knowledge it looks as though you need to call cursorNearVertex(xMouse, yMouse) method everytime there is a MOUSE_CLICKED event.