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Autodesk / revit-ifc

IFC for Revit and Navisworks (2019+)
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Problem: Bug Revit 2022 IFC Export Shaft opening in floors #609

Open MikeRCAD opened 1 year ago

MikeRCAD commented 1 year ago

Hello,

The Revit 2022 IFC exporter 22.6.0.0 (and 22.6.2.0) has a issue with Shaft openings that share a edge with floor(s).

Bug occurs when there is also a shaft within the floor, if there are only shafts sharing egdes with the floor, the floor boundary is exported correctly.

After some testing I found out the combination of steps to reproduce this:

  1. draw a rectangular floor on level1
  2. copy floor to level 2
  3. draw a shaft intersecting both floors AND have the shaft share a edge with the floors
  4. draw a shaft in the middle of the floor and only let it intersect one of the floors.
  5. export to IFC (2x3 scheme)

The floor boundary with the 2 schaft openings isn't correct, the other one is.

Further issue (minor) the shaft sharing it's boundary with the floor(s) isn't exported as opening in the Ifc.

Below a image with the IFC export on the left (with missing opening) and revit file on the right (with shafts selected) Revit2022_ifc_shaft_issue

LSMMrdk commented 5 months ago

I believe this still applies to the 22.7.0 and also newer versions of Revit and the IFC exporter such as 24.2.0.49. At least shaft openings still appear to be missing from exports.

T-Silkjaer commented 1 week ago

This issue is still a problem in Revit 2024