Interferences Check discussion about freecad_assembly4 HOT 4 CLOSED

1. I am seeing duplicated items. Is this by choice?

No. I've seen that too, but I don't know where it comes from. I hoped you would find the mistake

2. I believe this is not an intended behavior, can you confirm?

this comes probably from if obj1.isDerivedFrom('Part::Feature') . This was intended to also take fasteners into account. May-be a bad choice after-all. Dunno, what do you think, should fasteners also be checked for interference ? For the time being, I'll revert to check App::Link only

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Also, there is something I don't understand: you make all the intersections (make_intersection), and then you remove those that are empty (remove_empty_common). Why not ignore from the beginning empty intersections ?

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No. I've seen that too, but I don't know where it comes from. I hoped you would find the mistake

I see, I will try to find the issue then.

May-be a bad choice after-all. Dunno, what do you think, should fasteners also be checked for interference ? For the time being, I'll revert to check App::Link only

I would like to have the fasteners tested too. The user could ignore them when inspecting visually since everything is transparent. I would just not include them if this becomes processing intensive.

I have a pretty good machine and maybe small assemblies. So far I did not have any issues regarding the processing taking too much time. I also was thinking to generate each intersection with threads, but I am not sure how to make this yet. Also, being able to abort the operation would be interesting. Do you know anything about using threads with Freecad?

Also, there is something I don't understand: you make all the intersections (make_intersection), and then you remove those that are empty (remove_empty_common). Why not ignore from the beginning empty intersections ?

I added this "remove when empty" some days later to avoid having too many objects created. My code definitely needs refinement. Maybe this is such a thing that can be tweaked.

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I am closing this topic since I've pushed some commits to improve the Interference Check.

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