Illustrate mesh generation for domain with circular hole.

Contents

Setup GMSH
Set meshing parameters
Generate geometric model in GMSH geo format.
Generate mesh
Visualize mesh

clear variables;

Setup GMSH

This call is mandatory in order for Matlab/Octave to be able to run GMSH executable.

mp_setup_gmsh()

Set meshing parameters

meshingParams.basename ='rect';
meshingParams.folder = '.';
meshingParams.dim = 2;
meshingParams.clean = false;

Generate geometric model in GMSH geo format.

params.lc = 0.4;
params.dW = 3;
params.dr = 1;
params.lcFactors = [1,0.3,1,1,1,1,1,1];
gmshgeom = mp_geom_circ_hole(params);

Generate mesh

[nodes, elements] = mp_gmsh_generate(gmshgeom, meshingParams);

Visualize mesh

figure(1);
clf;
mp_plot_mesh(gca, nodes, elements);
axis('equal')
saveas(gcf(), 'circ_hole.png');
% Register demo status
mp_manage_demos('report', 'circ_hole_mesh', true);