PR: IfcIndexedColourMap has wrong number of colours for faces producing invalid model
Open
problem
- Dominant language
- C#
- Stars
- 637
- Forks
- 225
- PR merge metrics
- No merged PRs in 30d
Description
### Problem Description
See https://github.com/IfcOpenShell/IfcOpenShell/issues/6174
### Revit Version
2025.4.x
### IFC for Revit Addon Version
25.4.0
### Windows Version
11 24H2
Contributor guide
Research direction
Start by reviewing the linked IfcOpenShell issue 6174 and reproducing the problem with Revit 2025.4.x and IFC for Revit 25.4.0 on Windows 11. Trace how the generated IfcIndexedColourMap represents face colours; done means the exported model has the correct number of colours and is valid.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- csharp
- Domain
- desktop
- Issue type
- Bug
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Quiet
- Clarity
- Needs clarification
- Newbie friendliness
- 35/100