Hello,
I’m wondering if there’s a command or some simple solution I’ve missed, I’m looking to blend match and tween curves on surfaces with double curvature. Occasionally I can get away with just using blend or match and then pulling the result to, or projecting onto a surface but, is there a way to run the blending/matching/tween commands and have them pay attention to the surface the curves are sitting on? Sorry if this is a silly question 
If you are able to use Grasshopper then Pufferfish has Components for tweening curves on surfaces.
Thank you. I understand the basics of rhino but, grasshopper is giant mystery to me. Ill take a look
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Hi Natalie - can you post a file with some examples of what you are trying to do?
-Pascal
I would also like to match and blend curves on surface (not so much tween). You can make any examples you want, but here’s one:
That’s line creation. It would be nice if InterpcrvOnSrf also had Tangency (and Curvature) as starting options, for example.