Stabilize a small public API in C++, C and Python
The title says it all: we need to provide a small, stable API in C++, C and Python.
This is a major goal for Gmsh 4.0.
Work in progress: http://gitlab.onelab.info/gmsh/gmsh/blob/master/api
Examples in C++ and Python: http://gitlab.onelab.info/gmsh/gmsh/blob/master/demos/api