IfcPatch ExtractElements recipe misses the material

edited February 2021 in General

I have played with ifcpatch. Awesome tool ... see https://community.osarch.org/discussion/10/ifcpatch-tool-now-available If a IfcWallStandardCase is extracted with a GUID query into a new ifc this IfcWallStandardCase misses a material. According https://standards.buildingsmart.org/IFC/RELEASE/IFC2x3/FINAL/HTML/ifcsharedbldgelements/lexical/ifcwallstandardcase.htm a IfcWallStandardCase has to have a IfcMaterialLayerSetUsage. The file created with ifcpatch does not have this thus it is not Standard thus it is not read by CAD Nemetschek Allplan. I do not know if it true but at least it is what Support of Nemetschek Allplan told me.

There is a simple workaround, just make a IfcWall out of the IfcWallStandardCase.

Does it makes senst to make this automatically by ifcpatch?

cheers bernd

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