Hello Michael,

Thanks for the explanation. It's in an old CATIA video I saw but I'm thinking Extend is what I'm looking for, not extrapolate, so the curve can follow its natural progression. I think the behavior that VSR calls extrapolate is the same as the CATIA extend? The terminology seems to flip flop depending on the application, e.g. Altair calls a CATIA extrapolate natural extend.

https://www.youtube.com/watch?v=xk748plEtMM

Being able to do a CATIA type Extend on a curve would be great, being able to extend the curve up to another line would be icing on the cake.

As far as the outline curves are concerned it sounds like it only something that can be done when exporting since the outline creation depends on the raster layer?

Thanks.