STL tool

A simple class for handling points-connectivity correspondence in triangulation.

This class allows computation of unique vertices in 'stable' order.

Connectivity will change accordingly, and so will all additional indices contained in Indices struct. These will update every time remove_duplicate is called.

It uses familiar property names ( Points and ConnectivityList), and additional triangulation methods can access by creating tr = triangulation(connectivitylist, points) on the fly.