Autodesk / Autodesk/revit-ifc

Type parameters for some elements are not exported using 22.6 and 23.2.3

Open
#582 6 comments 0 reactions 0 assignees View on GitHub
2022 2023 export IFC mapping problem Revit Triage
Dominant language
C#
Stars
637
Forks
225
PR merge metrics
No merged PRs in 30d

Description

It seems that with 22.6 and 23.2.3 some elements miss type parameters that are mapped with user defined property sets. I have not tested with property sets using schedules. It has only happened for floors with constant thickness with extreme modify sub-elements and all stairs. It seems be related to the missing IFC type parameters listed below. Instance parameters are ok. In 22.4.2 it is ok.

![image](https://user-images.githubusercontent.com/58807838/215529048-78eae303-be16-492a-8991-545478faa8a8.png)

Not ok
![image](https://user-images.githubusercontent.com/58807838/215528907-2799334c-6f67-4001-ac47-1a9201b35b03.png)

Ok
![image](https://user-images.githubusercontent.com/58807838/215528665-84beea51-6f8c-4c1a-b37f-25bba07513cf.png)

Typeparameters in Revit
![image](https://user-images.githubusercontent.com/58807838/215530281-8ca52cdd-2185-471b-b233-55e854b70db7.png)

Mappingfile
![image](https://user-images.githubusercontent.com/58807838/215529950-7fd89489-5307-4e99-9526-10de9602039b.png)

Parameters in Solibri
![image](https://user-images.githubusercontent.com/58807838/215530096-0f188989-bc8d-4c30-b91a-58ed3763bfc4.png)

Contributor guide

Open the contributing guide

Research direction

Reproduce the export with Revit 22.6 and 23.2.3 using mapped user-defined property sets, especially constant-thickness floors with extreme modified sub-elements and stairs; compare the result with 22.4.2. Start from the mapping file and compare type parameters with instance parameters in the exported IFC and Solibri. Done means the missing IFC type parameters are exported consistently.

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
Mostly clear
Newbie friendliness
35/100

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