How to generate Node Set usisng Gmsh Python API
I have started using Gmsh with latest Python API. My objective is to do as mush as preprocessing as possible in Gmsh and then use it with Calculix ccx calculation so I simply save it with Python API with .inp extension. I tried using a physical group to get a nodes set as stated here and here. However when I create a physical group with all nodes inside extrussion 3D mesh and another physical group with just the nodes of a surface, but when saved only second group nodes are inside .inp file without any other node or element inside. Can anybody point me how to store a set of nodes in Gmsh using Python API?
Thanks in advance.