gmsh-reader

C++ application for reading a GMSH mesh file

Build

Using CMake, build with the following commands.

mkdir build
cd build
cmake -DCMAKE_BUILD_TYPE=Release ..
make

Run

Run it on one of the data files in ../data/.

./gmsh-reader.bin ../data/mesh_file.msh
./gmsh-reader.bin ../data/tutorial4Backup.msh

The second command will read the mesh pictured below.

Or, generate an annular mesh with the following command.

module load gmsh
gmsh -2 -format msh4 -o out.msh data/annular_structured.geo
gmsh -2 -format su2 -o out.su2 data/annular_structured.geo

This code will only read 4.1 ASCII version .msh files, these are written by recent versions of gmsh.

Notes

A clever method to set the Progression in a gmsh script is given by this blog post: https://afqueiruga.github.io/simulation/2018/08/21/geometric-progression-for-meshes.html

Credits

Most code is by Mohammad Haji mhajit@gmail.com. Snippits by Mark Stock markjstock@gmail.com and https://stackoverflow.com/users/763305 .