What Method to show how close a curve is to a mesh?

Hi,
V5
have tried intersect to see if my section curve touches mesh but nothing happens.
wish to see how close it is to mesh maybe with little coloured lines normals mesh to line. some visual indicator.

I recall having such I used a few years ago, and I could move surface in and out until it gave no red lines. That a surface though, wasnt a mesh.

I just want to see how my refined mesh section is relative to the mesh.

what method ?

Cheers
Steve

Hi Steve -

PointDeviation, perhaps? → Rhinoceros Help
-wim