[Gmsh] Beta-testing new Gmsh CSG modeler and boolean operations

Christophe Geuzaine cgeuzaine at ulg.ac.be
Sun Feb 12 08:05:34 CET 2017

Dear all,

An initial version of the new Gmsh geometrical modeler based on OpenCASCADE is available on SVN and in recent nightly builds: one can now directly create OpenCASCADE entities in the .geo files when specifying


It's still very much in beta, but now is the right time to start giving it a try and to give me feedback. 

There is no documentation yet: just explore the examples in https://onelab.info/svn/gmsh/trunk/demos/boolean (login and passwd: gmsh)

Some caveats with the current version:

- In order to define meshing constraints or to define physical groups you need first to "synchronise the model", using "SyncModel;"
- Not all existing primitives from the native Gmsh modeler have been ported yet to OpenCASCADE
- The GUI cannot yet be used to create the entities interactively


Prof. Christophe Geuzaine
University of Liege, Electrical Engineering and Computer Science 

Free software: http://gmsh.info | http://getdp.info | http://onelab.info

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