access eigenmode displacement for mesh nodes?

Hi!

This is my first post to this forum.

I have a simple mechanical structure (say, a clamped clamped beam) where I have been trying to extract, via LiveLink, the displacements for the actual mesh nodes, for a given eigenmode. I have been able to obtain the interpolated values using "Eval", but I would rather just access the x and y displacements for the original nodes.

Here is my code:

model.result().numerical().create('ss1','Eval');
model.result().numerical('ss1').set('expr','u');
ue = model.result.numerical('ss1').getData();
model.result().numerical('ss1').set('expr','v');
ve = model.result.numerical('ss1').getData();

I am quite new to the live link syntax and such, so I think I need some expert advice! Thanks!