Hello,

I want to apply the NemAll_Python_Geometry.MakeUnion method on two polyhedrons which I retrieved from a fixture. Although they seem to be valid when I test them with Polyhedron3D.IsValid(), the MakeUnion methoud throws an error (eWrongShape) and an empty Polyhedron3D.

When I place the two polyhedrons in the model and try to use the Union tool manually I also get an error ("Solids cannot be modeled"). This is fixed when I apply the "Repair 3D Elements" tool on both elements and then it is possible to Union them both manually and with the API MakeUnion method. Is there a way to repair the polyhedrons with the API? I've tried the Heal() and Normalize() methods but they don't seem to have an effect. I realy would like to handle the 'corrupt' polyhedrons inside the API, is that possible somehow?

I've attached the data to this topic (Export Loaded drawing files with resources) and I've modified the GeometrySelectInteractor.py example to show the case. Output of trace, generated with the modified GeometrySelectInteractor is also attached.

Attached data is from Allplan 2025 WIP-2.