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IFC type for ADA clearances

1. T by theoryshaw on 20 Jul 2023, edited 20 Jul 2023 #

   Anyone know what ifc type the following 2D ADA clearances could be categorized under?

   I thought IfcVirtualElementType, but IfcVirtualElement doesn't have a type.

   

2. M by Moult on 20 Jul 2023 #

   They should be part of the type's Clearance representation.

3. T by theoryshaw on 20 Jul 2023, edited 20 Jul 2023 #

   Maybe IfcTypeProduct with IfcAnnotation/LINEWORK as the ApplicableOccurrence?

   IfcTypeProduct doesn't show in the list, however...

   

4. M by Moult on 20 Jul 2023 #

   What's wrong with the Clearance representation?

5. T by theoryshaw on 20 Jul 2023 #

   Potentially, but what's the ifcclass then? I'd like to type these.

6. T by theoryshaw on 20 Jul 2023, edited 20 Jul 2023 #

   Oh, i think i know what you're talking about... about putting them in the particular type that applies.

   I'd rather not do this, as I typically don't want clearances in every ifcdoortype, for example, I have in the document. Would clutter the drawing.

   I use these clearances, more in the design phase, and move them around individually, just to make sure there's enough room around doors, furniture, appliances, etc.

   Currently i assigned them to the IfcTypeProduct, but I can only use this in one drawing, at a time.

7. T by theoryshaw on 20 Jul 2023 #

   There's also IfcBuildingElementProxyType with PROVISIONFORSPACE as the PredefinedType

   https://ifc43-docs.standards.buildingsmart.org/IFC/RELEASE/IFC4x3/HTML/lexical/IfcBuildingElementProxyTypeEnum.htm

8. M by Moult on 20 Jul 2023, edited 20 Jul 2023 # +1 votes

   Correct, that would be good, except that there is unfortunately no IfcVirtualElementType :(

   Really should fix IfcTypeProduct. Edit: fixed https://github.com/IfcOpenShell/IfcOpenShell/commit/a360bac4c3ca0138becac7acf5fd8e2ed1232be8

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