IFC4.3.x-development
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Repository to collect updates to the IFC4.3 Specification
Current version: ENTITY IfcVertex SUPERTYPE OF (ONEOF (IfcVertexPoint)) SUBTYPE OF (IfcTopologicalRepresentationItem); END_ENTITY; Solution: ENTITY IfcVertex ABSTRACT SUPERTYPE OF (ONEOF (IfcVertexPoint)) SUBTYPE OF (IfcTopologicalRepresentationItem); END_ENTITY;
http://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/property/CeilingCovering.htm Label to indicate the material or finish of the space **flooring**. --> change into : Label to indicate the material or finish of the space **ceiling**. http://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/property/WallCovering.htm Label to...
There has been a meeting (myself excluded) about some adjustments georeferencing. The changes (with some light modifications) discussed are:  ```diff --- IFC.exp 2022-09-13 14:05:16.062397000 +0200 +++ IFC.exp 2022-09-30 21:11:54.409712800...
for IFC VirtuelElement CLEARANCE see https://github.com/buildingSMART/IFC4.3.x-development/issues/536
see https://github.com/buildingSMART/IFC4.3.x-development/issues/536
For http://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcVirtualElementTypeEnum.htm, i thing it's important to also mention as a additional example [Structure gauge](https://en.wikipedia.org/wiki/Structure_gauge) here, see image below:  Because for me it was not clear that IfcVirtualElement with...
```diff --- tmp/a/IFC.exp 2022-08-26 23:08:09.300513800 +0200 +++ tmp/b/IFC.exp 2022-09-05 20:18:40.046645700 +0200 @@ -10094,21 +10094,21 @@ SUPERTYPE OF (ONEOF (IfcRevolvedAreaSolidTapered)) SUBTYPE OF (IfcSweptAreaSolid); Axis : IfcAxis1Placement; Angle : IfcPlaneAngleMeasure; DERIVE AxisLine...
There are a number of issues with IfcMaterialProfileSetUsageTapering. But I'll start with an easy one: the ReferenceExtent attribute says: > It is used as the reference value for the upper...