OSTexo,

Thanks for pointing out the IsoAtPoints script and for asking Michael to make it years ago. I gave it a try and am hoping you can give me some pointers.

I found that this script accepts 1 face only, so I'm running the script 8 times to go around a filleted rectangle:



Is that what you'd do in this case, have you modified the script to accept multiple faces, or can you recommend some other workflow?

I found that the singularity in UV occurs at different vertices on different corners of a filleted rectangle and so I end up with isocurves that fan out at some corners but are parallel at others. Do you carefully construct solids so that the UV coordinates will be right for line shading, or how do you handle UV parameterization that doesn't jive with how you'd like shade lines to run?



What do you use for fragment deletion? I'm using an Illustrator script by John Wundes called SelectPathsBySize