Exoskeleton

Exoskeleton is a free plug-in for creating meshes. It is currently comprised of two components: Exo Wireframe and Cytoskeleton.

  • Exo Wireframe thickens line/node into watertight meshes. It solves the nodes using a convex hull and stitches the hulls together with polygonal struts.
  • Cytoskeleton thickens the edge network of any existing mesh into a thickened mesh. The topology of the base mesh enables the production of a clean quad meshes whose vertices are all of even valence. Because It uses the half-edge mesh library developed by Daniel Piker and Will Pearson, it also requires the installation of the Plankton dll's and gha.

Exoskeleton remains a work in progress, and as bugs are fixed and new components and features introduced, updates will be placed here. Furthermore, Exoskeleton is an open-source library.

Download the most recent version here: Exoskeleton2_150904.zip

This has been updated to also include Plankton version 0.3.4

This library is distributed under the terms of the GNU Lesser General Public License (LGPL).

(The source is available on GitHub here)

Please use this discussion forum to post questions, describe issues, and provide feedback (and examples!).

Copyright 2014 Daniel Piker and David Stasiuk

Thanks to Will Pearson, for his work on Plankton and who also has given some invaluable contributions to Exoskeleton in terms of project organisation. Thanks also to Giulio Piacentino for Weaverbird, and for general knowledge and support, and Mateusz Zwierzycki for the same, as well as for sharing his code for convex hulls, which although not used explicitly here, was very helpful in many regards for the development of Exoskeleton.

Exowireframe failure

Hi all,

Can anyone help? I'm creating some random lines with Voronoi 3D (cleaned up with Topologizer), and am getting "object reference not set to instance of object" with exowireframe. I've got 302 lines. When I use a subset component to pick out the first 40 lines, exowireframe works fine. The failure happens when I include the 41st line. This line long enough, only meets one other line in the collection, and meets it at 90 degrees. So I don't think it's a geometry problem. 

Thanks,

Dave

  • up

    Hyungsoo Kim

    Check this.

    • up

      David Bachman

      Thanks Hyungsoo!

      This is a weird solution. Adjusting the tolerance changes the number of lines that work, but sometimes that number goes down when the tolerance goes up. I can never seem to find a setting that works for all 302 lines, and I still don't think this is a geometry problem. Anyone know?

      Dave