chbergmann
Reflections on a curved mirror only work for one row of rays, but fail with a second column
Problem description see https://forum.freecad.org/viewtopic.php?t=59860&start=220#p809729
Switching on the lights will cause a RuntimeError
22:40:52 File "/home/christi/.local/share/FreeCAD/Mod/OpticsWorkbench/./Ray.py", line 558, in traceRay isec_struct = self.getIntersections(fp, line) ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 22:40:52 File "/home/christi/.local/share/FreeCAD/Mod/OpticsWorkbench/./Ray.py", line 385, in getIntersections dist_to_face = vert.distToShape(face) ^^^^^^^^^^^^^^^^^^^^^^ 22:40:52 RuntimeError:
The workbench itself is programmed in Python, but it makes use of a C++ library called opencascade. The workbench calculates the intersection points of a ray segment with all faces of all optical objects and picks out the nearest one. vert is one of the intersection points and face is the curved face of a mirror. distToShape() is a call to the opencascade library. It throws an exception. I do not know why. I tried to wrap the call with a try catch block to let the program be continued, but from this point on the calculations for the rays are wrong
I've redone the CAD file from scratch and now the whole thing works as expected. I guess it comes from my initial geometry but I can't figure out what is different.
https://forum.freecad.org/viewtopic.php?p=811914#p811914
Well, it didn't last long. after playing more with the same file, it does crash now. It almost looks like the CAD package is getting corrupted of some sort. I am lost here.