If a lens was drawn through the origin of the sketch, Freecad crashes when a 2D beam bundle is placed.
Since the bundle is placed into the origin, the lengths of ray vectors hitting the surface are zero and therefore their direction cannot be calculated. Probably it is a "division by zero", which should be catched.
chbergmann
commented
2 years ago
If a lens was drawn through the origin of the sketch, Freecad crashes when a 2D beam bundle is placed. Since the bundle is placed into the origin, the lengths of ray vectors hitting the surface are zero and therefore their direction cannot be calculated. Probably it is a "division by zero", which should be catched.