How do I add hot spots in a jsc3d model? -

i have 3d model loaded in web page using jsc3d. there way place hot spot (a clickable area) on model when clicked zoom in , rotate model specific set or coordinates?

i think "hotspot" mesh selection built in. let have correctly initialized viewer:

var viewer; /* set viewer options */ ... viewer.init(); ... 

set callback function:

viewer.onmousedown = onviewermousedown; 

then need this:

function onviewermousedown(x, y, button, depth, mesh) {          if (button == 0/*left button down*/ && mesh != null) {         var meshname = mesh.name;         var pivot = mesh.aabb.center();         /* selected mesh */         console.log('mesh center: ' + json.stringify(pivot));     } } 

if have more 1 mesh, should rotate/translate self, example implementing mesh rotation matrix in jsc3d prototype.

more info:

http://jsc3d.googlecode.com/svn/trunk/jsc3d/docs/symbols/jsc3d.viewer.html#onmousedown