Marius Kintel

Status as of 2024-03-24: F5 still broken when using CGAL. Works with Manifold.

Status as of 2024-03-24: * First example: Still broken with CGAL, but works with Manifold * example from jbash: Works with both CGAL and Manifold

Also crashes Mac build 2017.12.02

Some investigation done: CGAL produces smth. like this in the second case:`polygon([[-0.707107,0.707107], [0,0], [0.707107,0.707107], [1.11022e-16,1.41421], [5.55112e-17,1.41421]]);`. Apparently, the two input vertices in the origin aren't exactly in the origin. This...

We could also rewrite to QHull (http://www.qhull.org/)

Another example crash, with a quite reasonable expected real-world scenario: ``` hull() { translate([0, 10]) draw_circle(); translate([10,0]) draw_circle(); } module draw_circle() { rotate([0, 0, 358.987]) { rotate([0, 0, -358.987]) {...

No longer crashes, but also doesn't result in any geometry

@PRouzeau Is this still a problem? Was it reported to NanoCAD?

@mobil750 We've improved STL export quite a bit. If you're still able to test this, please give the latest development snapshots a spin. Also check out Preferences->Features->manifold Will close soon...

The backtrace indicates a crash inside CGAL's union code (tested with CGAL 4.11): ``` #8 0x000000010055a192 in void boost::throw_exception(boost::bad_any_cast const&) at /Users/kintel/code/OpenSCAD/openscad/../libraries/install/include/boost/throw_exception.hpp:69 #9 0x000000010074038d in unsigned int boost::any_cast(boost::any&) at /Users/kintel/code/OpenSCAD/openscad/../libraries/install/include/boost/any.hpp:268...