I'm new to rhino, how do I do this (tensile / mesh model)

[Tom_P]

simulation

see also here - cloth simulation with grasshopper / kangaroo)

@DanielPiker

shrinkwrap_sharp.gh (24.2 KB)

Here’s a go at this with the current Kangaroo, also using MeshEdit to make the convex hull to start with and Weaverbird.
It’s still not perfect - edges that are part of the input geometry and the convex hull stay crisp, but it can still end up rounding other edges inside as it shrinks.
I’d like to improve this, but I think it will need some slightly different way of finding the collisions, and/or remeshing while shrinking.

shrinkwrap

you might also just play around with some very simple initial geometry.
_line
_pipe
and then use
_shrinkwrap (with 10 to 50 smooth iterations) (left)
or
with some initial offset outwards (middle) and back inwards (right).