Create curve from edge
From:
Frenchy Pilou (PILOU)
31 Aug 2016 (2 of 9)
8075.2
Draw a Straight line or a curve above your volume
Then "Project" it Menu Construct / Curve / Project
http://moi3d.com/3.0/docs/moi_command_reference7.htm#project
Sorry I read your post too quickly! :)
My method if for obtain a curve from a surface! ;)
EDITED: 31 Aug 2016 by PILOU