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buildingSMART / IFC4.3.x-development

Repository to collect updates to the IFC4.3 Specification
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Resource Cost concept incorrectly parametrized #114

Open aothms opened 2 years ago

aothms commented 2 years ago

IfcAppliedValueSelect no longer contains IfcMonetaryMeasure [0]

However all the existing parametrizations of the concept reference IfcMonetaryMeasure as the applied value. E.g. [1]

afbeelding

[0] https://standards.buildingsmart.org/IFC/DEV/IFC4_3/RC4-voting/HTML/link/ifcappliedvalueselect.htm

[1] https://standards.buildingsmart.org/IFC/DEV/IFC4_3/RC4-voting/HTML/link/ifcconstructionequipmentresource.htm

Moult commented 2 years ago

What's the problem there? IfcAppliedValueSelect lets you choose IfcValue, then IfcDerivedMeasureValue, which then resolves to IfcMonetaryMeasure.

I've implemented this and am successfully using monetary measure as specified in the docs.

aothms commented 2 years ago

Right. Mistake on my end I guess. In 2x3 it was directly part of AppliedValue https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/TC1/HTML/ifccostresource/lexical/ifcappliedvalueselect.htm

Keep the issue open please because I do need to double check whether the concept parametrization made it in correctly into the new docs.

On a side note, I'm struggling to see why a IfcMonetaryMeasure would be "Derived". What is it derived from?

Moult commented 2 years ago

Derived from a trust in the global financial institutions.

:D