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The following request/questions came from a quick interaction with the datamodel.
### 1. `IfcValidationOutcome.instance` points to model instead of instance
https://github.com/buildingSMART/ifc-…
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ALS007 restricts representation to a gradient curve.
However, in the Alignment documentation it notes that several types of curves might be used for geometric representation (refer Geometric perspect…
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Psets from IFC4.3 are represented as class with class type "GroupOfProperties" (see for instance Pset_ActorCommon with URI [ https://identifier.buildingsmart.org/uri/buildingsmart/ifc/4.3/class/Pset_A…
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During our bsUSA BIM for Bridges meeting on July 17 someone mentioned that there was still some uncertainty about linear placement that is hampering implementation. I’m wondering what the issues are. …
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When trying to compute placements for comparison with https://github.com/buildingSMART/IFC4.x-IF/tree/main/IFC-files/Linear-placement-sleepers/ACCA#readme the following issue is noted.
**Problem**
…
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Hello,
Do you maybe already have plans about supporting the upcoming version of IFC 4.3? It is already a release candidate.
https://standards.buildingsmart.org/IFC/DEV/IFC4_3/RC1/HTML/
We would…
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It should use `IfcPresentationStyle` instead. This means that IFC4 exports from other BIM applications, when imported into Revit, do not have colours. It also leads to invalid IFC4 exports which canno…
Moult updated
2 weeks ago
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As a developer I want a CDE (Bldrs) to implement an open standard.
https://technical.buildingsmart.org/projects/opencde-api/
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The both types of subtypes of `IfcPhysicalQuantity` and `IfcProperty` are not implemented yet.
See:
https://standards.buildingsmart.org/IFC/RELEASE/IFC4/ADD2_TC1/HTML/schema/ifcpropertyresource/le…
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## The situation
The BuildingSmarth Data Dictionary (BSDD) is an onlne service provided by [BuildingSMART](https://buildingsmart.org), the non-profit body that maintains the [IFC file format](https…