IFC4.3.x-development
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buildingSMART
Repository to collect updates to the IFC4.3 Specification
The semantic definition of **SoilConductivity** reads: >Thermal conductivity of soil. Generally, within standards such as IEC 60364-5-52, table 52A-16, the resistivity of soil is required (measured in [SI] units of...
1) Second sentence says "Curtain wall is represented as a building element assembly", suggested to change "may be represented as an assembly or single instance" 2) Needs clarification what entities...
Checking of IFC properties with IDS requires to specify the datatype. Where to find the underlying datatype of predefined IfcPropertyEnumeratedValues? This information is part of the IFC4 HTML documentation, but...
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...
**Situation** I can't quite follow the text in the ifc concept documentation about predefind type. Here is an excerpt from the documentation: > "If the object is typed by an...
The description says: "An entrance door consisting of four leaves set in a form of a cross and revolving around a central vertical axis.". A different number of leaves can...
The documentation says there is no such markdown file. https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/property/OperationModeHistory.htm I wanted to remove the description saying "...corresponding to Pset_UnitaryControlTypeCommon.Mode. For example, 'HEAT', 'COOL', 'AUTO'." since that pset and property...
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Repository to collect updates to the IFC4.3 Specification