Not sure, if i should open this topic here or over at GitHub - buildingSMART/IfcDoc: IFC Documentation and Toolkit . I start here. An IfcPropertySet can be related to its IfcPropertySetTemplate through the IfcRelDefinesByTemplate. How can the property itself be related to its property template? E.…

the question is whether there is a possibility for a “direct” relation (…typo “elated”->“related”;): [image] klaus.aengenvoort: How can the property itself be related to its property template? E.g. IfcPropertySingleValue => IfcSimplePropertyTemplate The documentation on http://www.buildings…

Klaus seems to be proposing that we add an optional attribute (reference Id) to an ifc property (which could/should be a guid) that would allow identification of the property. I would certainly support this.

I am not convinced that adding an optional attribute (reference ID) is the way to go for the following reasons: PDT/PDS is a maschine to maschine communication where we can rely on the “name” of the IfcSimplePropertyTemplate and as the response of the IfcPropertySingleValue, as this “name” should…

The IFC scheme, as of today, uses the name as the key for the relation between the property templates and the instances of the templates (the properties) within one file. To find the template for a property, you have to “jump” over the property set to the related property set template and then to t…

How is a IfcPropertySet related to its IfcPropertySetTemplate?

Developers

stegh September 26, 2018, 7:59pm 4

Great, - what’d be the right process to get this started?

bSDD -- GUIDs at the field (property) level

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How is a IfcPropertySet related to its IfcPropertySetTemplate?

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