Triangulate_MONO failure

[guicoe]

Hey y’all,

I was trying out Triangulate_MONO on some polygons and found several where it was unable to triangulate properly. I tried triangulating the same polygons using Triangulate_EC and it worked just fine, though much more slowly as expected.

After tinkering for a while, I managed to find a small example where the triangulation fails: 1 7 0 2 4 0 2 2 0 4 1 6 0 6 4 4 3