Hi Ziad,

If you want to find the amount of movement of a particular anatomical location,
you can find that location (node) on the original sphere and then find the
same node on the deformed (warped) sphere, and compare the (spherical) coordinates of the two. However, I think the distances found this way should not be directly used as measure in mm of how much the node moved, because the original spherical surface itself is a distorted version of the smoothwm surface. This is what I meant in the last statement, sorry if it was confusing.

So, I was interested in finding the movement (or displacedment) of the nodes
on the smoothwm surface as a result of warping. It seems that what you would need is some correspondence between nodes in the standard mesh and those in the original mesh (I understand that it won't be a one-to-one correspondence). What you are saying sounds like just what I need. If that log can be added to MapIcosahedron,
that could be useful feature.

thanks,
Rutvik