IFC4.3.x-development
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buildingSMART
Repository to collect updates to the IFC4.3 Specification
The `ShapeAspectStyle` attribute of all other `IfcPreDefinedPropertySet` have been deprecated, except for `IfcPermeableCoveringProperties`. Why is this an exception? If there is no reason for it to be an exception, I...
pset/prop|prop type|prop value type ---|---|--- **Pset_FittingBend** (renamed from Pset_PipeFittingTypeBend)|| IfcDuctFitting/BEND IfcCableCarrierFitting/BEND IfcPipeFitting/BEND|| BendAngle|singlevalue|IfcPlaneAngleMeasure BendRadius|singlevalue|IfcPositiveLengthMeasure || **Pset_FittingJunction** (renamed from Pset_PipeFittingTypeJunction)|| IfcDuctFitting/JUNCTION IfcCableFittingTypeEnum/JUNCTION IfcPipeFitting/JUNCTION|| JunctionLeftAngle|singlevalue|IfcPlaneAngleMeasure JunctionRightAngle|singlevalue|IfcPlaneAngleMeasure JunctionLeftRadius|singlevalue|IfcPositiveLengthMeasure JunctionRightRadius|singlevalue|IfcPositiveLengthMeasure JunctionType|enumeratedvalue|PEnum_FittingJunctionType (renamed from PEnum_PipeFittingJunctionType)...
Originally https://forums.buildingsmart.org/t/ifcsite-does-not-reference-the-epsg-code-for-wgs84-and-further-inconsistencies-with-georef/3499 The `IfcSite` documentation states WGS84, but since there are many WGS84s out there, we need to clarify which one. > World Latitude at reference point (most likely defined...
Originally something I discussed here: https://forums.buildingsmart.org/t/how-is-true-north-and-magnetic-north-stored-in-ifc-and-how-does-it-interact-with-grid-north/3491 When a map conversion is supplied, the true north becomes a calculated value at a particular easting and northing. For example, at Easting X...
When we are modeling walls and slabs, the layer set usage allows us to insert a new instance of a type and we can generate a sensible shape due to...
### Aggregation > * The concept usage 'Aggregation' for entity 'IfcActionRequest' in MVD 'GeneralUsage' is not modeled in UML > * The concept usage 'Aggregation' for entity 'IfcController' in MVD...
Had a look and it seems none of the updates from the Infra and Rail projects are incorporated.
https://forums.buildingsmart.org/t/how-is-ifcreferent-used-to-indicate-transitions-for-cross-sections/3649 Ping @SergejMuhic is this still valid? I’m reading the description of IfcReferent in [5.4.3.32.1](https://standards.buildingsmart.org/IFC/RELEASE/IFC4_1/FINAL/HTML/link/ifcreferent.htm) and it says “Referents may be used for several scenarios: … * indicating transitions for...
Dear IFC-Team, I'm writing on behalf of bSI ifcSpatialZone WG in Building Room. We have reviewed comments on further important types related to Spatial Zones from chapters (Germany with Working...
Original issue: https://forums.buildingsmart.org/t/hascoordinateoperation-constraint-to-all-contexts-cannot-be-satisfied/3502 The docs state: > Indicates conversion between coordinate systems. In particular it refers to an [IfcCoordinateOperation](http://localhost:8001/schema/ifcrepresentationresource/lexical/ifccoordinateoperation.htm) between a Geographic map coordinate reference system, and the engineering coordinate...
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Repository to collect updates to the IFC4.3 Specification