buildingSMART / IFC4.3.x-development

Repository to collect updates to the IFC4.3 Specification
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Annotation 2|3D concept is self contradictory #113

Open aothms opened 2 years ago

aothms commented 2 years ago

The text states: "within an IfcGeometricSet", but the concept diagram lists the IfcPoint, -Curve -Surface directly as the IfcShapeRepresentation.Items

https://standards.buildingsmart.org/IFC/DEV/IFC4_3/RC4-voting/HTML/link/annotation-3d-geometry.htm

http://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/concepts/Product_Shape/Product_Geometric_Representation/Annotation_Geometry/Annotation_2D_Geometry/content.html

Applies to both 2D and 3D

Moult commented 2 years ago

Agreed. There are a whole bunch of permutations of context type, identifier, and target view that seem to conflict. More reading here: https://forums.buildingsmart.org/t/suggestions-on-how-to-improve-clarity-of-representation-context-usage-in-documentation/3663

Is this the right time to go through all the permutations and see which ones make sense and how to document them? I've got a list in the BlenderBIM Add-on codebase of which ones I think make sense.