Hi,
Thanks to mmg, my mesh generation has become much more elegant, no longer just a simple mesh splitting.I’ve also encountered an issue while using it and would like to discuss this in the community.
I’m using mmg3d to remesh a mesh generated by gmsh, and I’ve found that if the initial mesh has no extra nodes on a shared edge across multiple physics groups, mmg3d cannot insert points on that edge.
My structure is very simple; it’s a cube composed of two cuboids. On the common edges of the two cuboids, some edges have extra nodes, and some don’t.
I tried to remesh this structure with following command:
mmg3d_O3.exe .\demo.msh -hausd 0.1 -hgrad 999 -hmin 0 -hmax 0.1
I found that for common edges with extra nodes, insertion points work correctly. However, for common edges without extra nodes, no points are inserted on the edges, resulting in very long and narrow triangles.
I’d like to know how to solve this problem. Is this a bug?
demo.msh (1.8 KB)
demo.o.msh (689.5 KB)
