Iguana Mesh
(by ssuzuki)
Finite element meshing plugin for Grasshopper built on a half-facet data-structure supporting non-manifold meshes and mixed-dimensionalities.
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IGUANA Mesh is an open source three-dimensional finite element meshing plugin for Grasshopper. It uses Gmsh as mesh generator and stores all topological data within a half-facet data-structure in order to provide a comprehensive topological description of discrete models even for non-manifold meshes and mixed-dimensionalities. The plugin runs on x64 architectures and was tested with Rhino 6 64-bit.

IGUANA Mesh is distributed under the terms of the GNU General Public License. Please contact us directly for more information.

Follow the development of Iguana Mesh in Github.

Copyright (C) 2020 by Seiichi Suzuki
Alfred Wegener Institute Helmholtz Center for Marine and Polar Research (AWI)
Bio-inspired Lightweight Design Research Group



  • C. Geuzaine and J.-F. Remacle. Gmsh: a three-dimensional finite element mesh generator with built-in pre- and post-processing facilities. International Journal for Numerical Methods in Engineering 79(11), pp. 1309-1331, 2009.

Half-Facet Data Structure

  • Dyedov, Vladimir; Ray, Navamita; Einstein, Daniel; Jiao, Xiangmin; Tautges, Timothy J. (2014): AHF: Array-Based Half-Facet Data Structure for Mixed-Dimensional and Non-manifold Meshes. In Proceedings of the 22nd International Meshing Roundtable 40, pp. 445–464. DOI: 10.1007/978-3-319-02335-9_25.