Grasshopper

algorithmic modeling for Rhino

# Fertility Meshmachine ShortestPath ExoWireframe

1) Model remeshed with Meshmachine
2) Shortest Walk on vertices of the mesh
3) ExosWireframe applied on paths

Original 'fertility' model courtesy of the AIM@SHAPE Shape Repository

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Comment by Laurent DELRIEU on November 6, 2014 at 1:45pm

Thanks for the links, I will look to them.

I already looked to some venations examples and to my point of view it is important to have a direction of growth. So I think geodesic could be useful, growth will be perpendicular to iso geodesic distances. Here is an exemple with horse, I put points on horse sabots (main veins will begin here)

Comment by Daniel González Abalde on November 6, 2014 at 1:19pm
Comment by David Stasiuk on November 6, 2014 at 1:19pm

Ah, cool. Makes sense. The Nervous stuff (I am pretty sure) is derived from the algorithms outlined here: http://algorithmicbotany.org/papers/venation.sig2005.pdf It's a fantastic paper, and totally possible to implement. A number of folks here have done so, I believe.

Comment by Daniel González Abalde on November 6, 2014 at 1:16pm

Eii Laurent,
some time ago I tried to make the venation algorithm as Nervous in Gh, but this is done with the CGAL library. I am a novice in scripting but have this slope. Maybe to you this be a help ...

Also, very good renders.

Comment by Laurent DELRIEU on November 6, 2014 at 12:53pm

It is a shortest walk between a departure point underneath the mesh and all the vertices of the mesh. Path are the edges of triangles.But I want to make something similar to Nervous, but at the moment I try to make some geodesic  with one or more sources. I am here now but it is far from optimized.

Comment by David Stasiuk on November 6, 2014 at 3:53am

Looks great! Although it looks more like a minimum spanning tree to me?