geometryToGmshGeo

Introduction

The tool geometryToGmshGeo takes OGS geometries (gml files) and creates a Gmsh .geo file. The user can specify several command line arguments to influence the creation procedure. A list of the arguments as well as a description of each argument can be obtained with the --help option.

Usage

geometryToGmshGeo --input <input file name> --output <output file>

The --input argument is accepted multiple times.

Simple examples

First Example: Simple Geometry

First, the Gmsh geometry file is create from the gml file square_1x1.gml:

geometryToGmshGeo -i square_1x1.gml -o /tmp/square_1x1.geo --mesh_density_scaling_at_points 0.05

Then, the Gmsh geometry can be meshed:

gmsh /tmp/square_1x1.geo -2 -algo meshadapt -format msh22 -o /tmp/square_1x1.msh

Second Example: Simple Geometry with Additional Geometrical Information

First, the Gmsh geometry file is create from the gml files

• square_1x1.gml
• square_0.15_0.25x0.15_0.25.gml
• square_0.45_0.55x0.45_0.55.gml

geometryToGmshGeo -i square_1x1.gml
                  -i square_0.15_0.25x0.15_0.25.gml
                  -i square_0.45_0.55x0.45_0.55.gml
                  -o /tmp/square_1x1.geo --mesh_density_scaling_at_points 0.5

Then, the Gmsh geometry can be meshed:

gmsh /tmp/square_1x1.geo -2 -algo meshadapt -format msh22 -o /tmp/square_1x1.msh