Oh, one other thing of note...

As mentioned, the routine loops through and checks for intersections with the "tripolys associated with the list of vertices passed in"... but it currently makes no attempt to screen that list of tripolys for duplicates, so it actually ends up testing each of those tripolys multiple times (since each tripoly likely has some of those vertices in common).

With the C++ code, it didn't really matter (for now), so I didn't bother doing that optimization yet, but at some point, it would be best to add some code for that (particularly in the Python version).

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