How to detect the collision coordinates?

Scripting Issues
1

I have an actor I would like to move to somewhere on a terrain by clicking on it.
I am using a picker, so how can I detect the coordinates of the terrain position where I clicked? I could not find any method in the CollisionTraverser or CollisionHandlerQueue classes for this.

2

You can retrieve the CollisionEntry from the queue, upon which you can call getSurfacePoint(render). Read this manual page for more info:
panda3d.org/manual/index.php/Collision_Entries