Autodesk / Autodesk/revit-ifc

Qto_ColumnBaseQuantities -> OuterSurfaceArea

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#822 1 comment 0 reactions 0 assignees View on GitHub
problem
Dominant language
C#
Stars
637
Forks
225
PR merge metrics
No merged PRs in 30d

Description

### Problem Description

In Revit 2025.3 and IFC Exporter 25.2.0.5 it is not working overwritting param OuterSurfaceArea with custom value.
![image](https://github.com/user-attachments/assets/10f8ae36-6286-4eb4-8ccf-0d8374432b39)
The result is:
![image](https://github.com/user-attachments/assets/0ad73224-750a-432e-ab82-93f5b6300332)
With other category, like beams it is working.
I try with columns and structural columns categories but still not working.
I think it is a bug.

### Revit Version

2024.0.x

### IFC for Revit Addon Version

24.x.x

### Windows Version

11 22H2

Contributor guide

Open the contributing guide

Research direction

Start by reproducing the reported OuterSurfaceArea override for columns and structural columns in Revit with the IFC Exporter, checking the version discrepancy in the report. Compare the column behavior with the working beam case and inspect the exporter path handling Qto_ColumnBaseQuantities. Done means a custom OuterSurfaceArea value is preserved for columns in the exported IFC.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
tooling
Issue type
Bug
Difficulty
4/5
Estimated time
3-5 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
30/100

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