Dear Gmsh users/developpers,
I was wondering if there is a way to extrude a prism layer over a
compound surface obtained by stl reparametrisation. I'm trying to
import an stl file in order to generate a 3d prism/tetrahedrons mesh.
I've checked your tutorial about stl remeshing (https://geuz.org/trac/gmsh/wiki/STLRemeshing
) and tried to modify the artery example:
Mesh.RemeshParametrization=0; //(0) harmonic (1) conformal
Mesh.RemeshAlgorithm=1; //(0) nosplit (1) automatic (2) split metis
Mesh.CharacteristicLengthFactor=0.05;
//merge the stl triangulation
Merge "artery.stl";
CreateTopology;
Compound Surface(100)={1};
//One layer of prisms:
bl[]=Extrude{Surface{100};
Layers{{1},{0.02}};
Recombine;
};
But I end up with the following error: Error : Impossible to extrude
entity 100 (of type 307)
The way I used to generate my meshes was to generate a wireframe of
isolines of my geometry and define a set of curved surfaces that I
would later on extrude. I'm thus also really interested by the trans-
patch remeshing which would allow me to get a smoother mesh, but I
also end up with a compound surface that I cannot extrude
Thanks again for your software
Best regards
Julien
Julien Hoessler
PhD Student
Department of Aeronautics
Imperial College London
Phone: +44 (0) 20759 45042
Email: [email protected]
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