Recursion limit reach with more than 1200 origins

[laurensversluis]

sys.setrecursionlimit(limit

[jorgegil]

There is some vey dangerous recursion in the convex hull algorithm within nested while loops! That's a recipe for disaster at the smallest error. For that reason those loops should be re-designed.

This happens even with fewer origins (for example 10) but in large and dense networks.