Dion Moult
Dion Moult
Please see stack trace from the [Transportr app](https://transportr.app/) below: 
Where would be the most official data source to extract translated strings for: 1. Entity names (and descriptions?) 2. Attribute names (and descriptions?) 3. Enumeration values (and descriptions?) Also, I...
Brought up [here](https://forums.buildingsmart.org/t/implementation-of-ifc-preprocessor/3198) Confirmed that the docs make no mention of how reinforcement gets assigned to slabs / columns / beams / etc. One method I would assume is IfcRelAggregates...
https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/concepts/Object_Composition/Aggregation/Element_Decomposition/content.html states: > Use the sub template Element Decomposition Required if any instance of the element is required to represent a composite with declared parts. However `Element Decomposition Required` doesn't...
IfcGeometricRepresentationContext's TrueNorth attribute should be described as purely reference only
https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGeometricRepresentationContext.htm says this: > The TrueNorth attribute should be provided, if the y axis of the WorldCoordinateSystem does not point to the global northing. Direction of the true north, or...
From the docs of IfcGeometricRepresentationContext: https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcGeometricRepresentationContext.htm > If an geographic placement is provided using [IfcMapConversion](https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcMapConversion.htm) then the WorldCoordinateSystem atttibute is used to define the offset between the zero point of...
buildingSMART has long published this georeferencing guide: https://www.buildingsmart.org/wp-content/uploads/2020/02/User-Guide-for-Geo-referencing-in-IFC-v2.0.pdf This has long described the use of the scale parameter to store the average combined scale factor:  We have delivered many...
The usecase of IfcRigidOperation is to do a simple **translation** from A to B, most commonly when you truncate large coordinates. Yet FirstCoordinate and SecondCoordinate allow IfcPlaneAngleMeasure... but why? Lat...
The [element nesting concept](https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/concepts/Object_Composition/Nesting/Element_Nesting/content.html) describes this: > The hosted component should not be contained in the spatial hierarchy, i.e. the concept Spatial Containment shall not be used at the level...