Hello,
I’m currently implementing the read/write of IFC4x3, focusing on railways entities.
I’m facing an issue for writing the entity IFCFacilityPart. I don’t know how the predefined type argument should be written. Before it was an enum, it became a select in IFC4x3.
Does someone has sample with IFCFacilityPart ?
Thank you.
Kevin.
Here’s my understanding of this topic.
STEP serializes a Select by wrapping the value with the class name. So it should look like this:
#76= IFCFACILITYPART(‘2rZAYplcf7Hu4GBw_FfuTH’,,'Circular Quay',,,#77,,,,IFCMARINEPARTTYPEENUM(.BERTHINGSTRUCTURE.),.NOTDEFINED.);
I’ve attached a test example file from Geometry Gym grasshopper plugin.
200703 TfNSW Location Breakdown.ifc (5.7 KB)
Here’s an image showing the spatial structure nominated within this.
Our c# toolkit for serializing and deserializing is open source, so you can see our implementation (using generics) here. https://github.com/GeometryGym/GeometryGymIFC/blob/WorkInProgress/Core/IFC/Enumerations.cs Search for IfcFacilityPartTypeSelect
Cheers,
Jon
