Need Help Diagnosing Mesh Loading Bug

Hey Everyone,

I recently came across a bug when attempting to load meshes from file. I have attached a minimal working example that meshes either the unit square or two concentric circles. In both cases, I was able to catch the following exception when attempting to load from file:

netgen.libngpy._meshing.NgException: co dim 2 elements not implemented for dimension 2

In the working example, you can generate this exception by setting geotype in the __main__ section of the code to either 'circle' or 'square'. Here's some more information in case it's needed:

• Operating System: CentOS Linux 7 (Core)
• NGSolve Version: NGSolve-6.2.2101-48-gbd6eaf8
• NGSolve Version: 3.8.6

To reproduce this bug, run either of the following commands at the terminal:

• python3 mesh_load_bug.py
• netgen mesh_load_bug.py

Any help on the matter is greatly appreciated.

In comparison, I had no issues running the same script on Windows, but I am using different versions of Python and NGSolve. In case this may help troubleshoot, here's the information:

• Operating System: Windows 10 Home
• Operating System Version: 20H2
• Operating System Build: 19042.867
• NGSolve Version: NGSolve-6.2.2101-140-g62e21dad8
• NGSolve Version: 3.7.9

-Ben

Hey Everyone,

As a first step, I just update NGSolve via git to NGSolve-6.2.2102-21-g7a7c427 on the Linux distro I am running right on now. That seems to have fixed the issue. Otherwise, the Python version remains the same. Having said that, I'm fine closing this issue as fixed.

-Ben