Loïc Bartoletti

The "after" video is not good, since we change slighty the behaviour.

> Which if I understood is "that if the exterior ring is in one direction, all interior rings are in the opposite direction, and the parts follow the direction of...

> > > > This seems to be the other way around, the project on GitLab shows: > > > /!\ Deletion pending. This project will be removed on 2020-06-23....

> What about [www.sfcgal.org](http://www.sfcgal.org), that still seems to use oslandia.github.io? And it's not updated since years. We're working on it.

For your information : https://oslandia.com/en/2020/06/19/en-oslandia-migrates-from-github-to-gitlab/

Please, can you share CGAL, boost versions, distribution and compiler? Can you try with master?

It's fine too on FreeBSD Confirmed on MacOs Catalina, sfcgal 1.3.7, cgal 4.14.1, gmp 6.1.2 with clang and gcc The backtrace ``` Process 57688 stopped * thread #1, queue =...

Confirmed with SFCGAL 1.3.7 / Postgis 3.0.1 and CGAL 5.0

@robe2 Confirmed on windows with SFCGAL 1.3.7 / CGAL 4.14.3 / postgis 3.0.1 But it works (c)(tm) on FreeBSD with SFCGAL 1.3.7 / CGAL 5.0 / postgis 3.0.1

Confirmed on FreeBSD with SFCGAL 1.3.7 cgal 5.0.2 boost 1.72 Error with SELECT ST_ConstrainedDelaunayTriangles(ST_GeomFromEWKT(...)): ``` CGAL error: precondition violation! Expression : is_simple_2(first, last, traits) File : /usr/local/include/CGAL/Polygon_2/Polygon_2_algorithms_impl.h Line : 510...