A note about GMSH scripting

This is about a frustrating detail that took me a few hours to discover. Scripting in GMSH allows one flexibility in design. The parameterization of the mesh allows for quick redesign. As objects can become complex rather quickly, when scripting in GMSH it may be helpful to make 'functions'. I say 'functions' because these are parameter-less and act as though you copy and pasted the function where you called it. So it is very primitive.

This caveat that took me some time to discover was that you have to be sure that calling a function is the last thing you do on a line, and do not have multiple calls in one line. Only after a line break does the program refresh the variables and such.