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How to generate nice mesh files

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RENAULT edited this page Nov 21, 2019 · 3 revisions

How to generate nice .msh or .stl files from .stl ones

Our methods rely on GMSH 2.16, which must be installed in your working folder or added to your os path, associated papers :

  • 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.

Cross-patch and STL meshing (Compounds):

  • J.-F. Remacle, C. Geuzaine, G. Compère and E. Marchandise. High-quality surface remeshing using harmonic maps. International Journal for Numerical Methods in Engineering 83(4), pp. 403-425, 2010.
  • E. Marchandise, C. Carton de Wiart, W. G. Vos, C. Geuzaine and J.-F. Remacle. High quality surface remeshing using harmonic maps. Part II: surfaces with high genus and of large aspect ratio. International Journal for Numerical Methods in Engineering 86(11), pp. 1303-1321, 2011.
  • E. Marchandise, J.-F. Remacle and C. Geuzaine. Optimal parametrizations for surface remeshing. Engineering with Computers, December 2012, pp. 1-20.

Because, it has the capacity to remesh stl, we developped a Python script to remesh all the .stl in the current folders.

Remeshing with our small python script

To generate the remeshed bone model you need to put all your .stl files in the same folder as remesh_STL_GMSH.py (and GMSH if not added to your os path).
Then all you have to do (provided you have Python 2.7 installed) is to launch remesh_STL_GMSH.py. You can either remesh all the .stl present in the folder or select the one you want to remesh with a small GUI.

Download example files

An example dataset can be accessed at :

https://www.dropbox.com/sh/kbapcubgw4cqu63/AACE6_UtbjhlLAKQSN468n-ca?dl=0

or directly downloaded with :

https://www.dropbox.com/sh/kbapcubgw4cqu63/AACE6_UtbjhlLAKQSN468n-ca?dl=1

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