I have used the or-tools VRP (vehicle routing problem) solver to optimize the drawing order of a pen plotter [1]. The Python API is a bit ugly but once I got pa

I have used the or-tools VRP (vehicle routing problem) solver to optimize the drawing order of a pen plotter [1]. The Python API is a bit ugly but once I got past that, I found it had enough flexibility (e.g. asymmetric costs, disjoint routes) to represent the problem neatly. 1. https://nb.paulbutler.org/optimizing-plots-with-tsp-solver/ https://nb.paulbutler.org/optimizing-plots-with-tsp-solver/