IFC4.3.x-development

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Mistake in Figure 8.10.3.9.A

2

Hello! The Figure 8.10.3.9.A (https://github.com/buildingSMART/IFC4.3.x-development/blob/master/docs/figures/ifcmateriallayerwithoffsets_fig-1.png) shows that IfcMaterialLayerSet for IfcWallType is composed of: - IfcMaterialLayerSetWithOffset which doesn’t exist in specs; - IfcMaterialLayerSet which violates 8.10.3.7.5 Formal representation:  I suppose...

VDobranov

Added a note advising on the preferred usage of IfcBuiltElement to represent generic built elements. Additionally, the order of the 'HYSTORY' section was changed to maintain a chronological order within...

fg55b

Add direct reference in IfcBuildingElementProxy to use IfcBuiltElement as an arbitrary built element

2

Greetings! There is a note in IfcBuiltElement specifying that "_It is advised not to use [IfcBuildingElementProxy](https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/HTML/lexical/IfcBuildingElementProxy.htm) to represent an arbitrary built element, but to use a direct instantiation of [IfcBuiltElement](https://standards.buildingsmart.org/IFC/RELEASE/IFC4_3/HTML/lexical/IfcBuiltElement.htm)...

fg55b

## Proposal Type | Definition ---|--- EXTERNAL_FIRE | Space occupied by external fire safety zone (?) EXTERNAL_ADJACENT | Space occupied by a neighboring ~~building~~ construction work LAND_PARCEL | Space occupied...

aothms

aothms

https://github.com/buildingSMART/IFC4.x-IF/issues/153

aothms

where-rule may return indeterminate value for a valid model

10

Some of functions can return indeterminate (?) value explicitly - IfcCorrectLocalPlacement - IfcCrossProduct - IfcCurveDim - IfcFirstProjAxis - IfcListToArray - IfcMakeArrayOfArray - ... At least one of them is where...

I-Sokolov

See [here](https://github.com/buildingSMART/IFC4.3.x-development/blob/master//docs/schemas/resource/IfcQuantityResource/Entities/IfcQuantityNumber.md#formula). The "IFC4 CHANGE" reference seems wrong since it is a new entity in 4.3.0.0.

SergejMuhic

IfcCorrectLocalPlacement requires an audit and update

6

documented here https://github.com/bSI-InfraRoom/IFC-Specification/issues/637

SergejMuhic

guids in property set xmls

1

Probably not a big deal but in ifc4 xmls files for property sets used to define some guid that was used later in the .ifc pset templates. That way guid...

Andrej730