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Detecting clearance clashes between elements

1. E by engineer_21 on 11 Apr 2025, edited 23 Apr 2025 # +1 votes
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   Hello everyone, I was wondering whether it is possible to get the full clash geometry (all vertices) and not just two points (p1, p2), when detecting clearance clashes between elements? (as described here: https://docs.ifcopenshell.org/ifcopenshell-python/geometry_tree.html#clashing-or-selecting-geometry-from-a-geometry-tree)

   For example, I have three objects. Object 1 touches objects 2 and 3, but the connecting surface between object 1 and 3 is much smaller than between objects 1 and 2 and I would like to detect which connecting surface is bigger. (I hope this explanation is clear)

   Thanks a lot!

1. M by Moult on 18 Apr 2025 # +1 votes
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   Clearance clash detection has an early return so that the moment it finds any vertex under the clearance threshold, that's what it returns. So no, it doesn't have any more control than that.

1. E by engineer_21 on 23 Apr 2025 #
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   @Moult thank you very much for the reply! Is it possible to transform the coordinates of the points P1 and P2 to world coordinates? I do not understand what coordinate system is being used to determine the coordinates of these points. Thank you!

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