buildingSMART / buildingSMART/IFC4.x-development

Clarification on `IfcObjectPlacement.PlacementRelTo`

Open
#974 33 comments 0 reactions 0 assignees View on GitHub
before-NWI IF
Dominant language
Python
Stars
234
Forks
123
Avg merge
15h 4m
Merged PRs (30d)
5

Description

See

https://github.com/buildingSMART/IFC4.3.x-development/blob/adaadc86f5a47e1c9cae1079c75ffadab4690f4c/docs/schemas/resource/IfcGeometricConstraintResource/Entities/IfcObjectPlacement.md?plain=1#L31-L32

especially

> If it is omitted, then in the case of linear placement it is established by the origin of horizontal alignment of the referenced IfcAlignment Axis.

What `Axis`?

To fix this, I assume that simply deleting

>in the case of linear placement it is established by the origin of horizontal alignment of the referenced IfcAlignment Axis. In the case of local placement

could be sufficient? If agreed I could prepare a PR.

Contributor guide

Open the contributing guide

Research direction

Read the linked IfcObjectPlacement.md passage around lines 31–32, then review the 33-comment discussion before deciding how “Axis” should be clarified. Done means reaching agreement on the intended wording and preparing the focused documentation change or PR described in the issue.

Written by the indexing model from the issue text.

Assessment

Domain
documentation
Issue type
Documentation
Difficulty
3/5
Estimated time
1-2 days
Activity status
Quiet
Clarity
Mostly clear
Newbie friendliness
38/100

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