OSArch Community

ifcopenshell, get Material Name

1. B by bernd on 5 Nov 2021, edited 16 Nov 2021 #

   Hi there,

   is there a possibility in ifcopenshell to directly get the material name of a building element easily? Similar to the great get_psets() method.

   cheers Bernd

   BTW: in FreeCAD we use this ... https://github.com/FreeCAD/FreeCAD/blob/916fe37a6b757e3bf6d51fb65ebc412243125d8e/src/Mod/Arch/importIFCHelper.py#L239-L257

2. M by Moult on 6 Nov 2021 # +1 votes

   @bernd ifcopenshell.util.element.get_material(element, should_skip_usage=True or False you choose)

3. B by bernd on 8 Nov 2021, edited 8 Nov 2021 #

   works great. Setting the material Name works too :-)

   What does the parameter "should_skip_usage" do?

4. B by bernd on 9 Nov 2021, edited 9 Nov 2021 #

   Just to be sure ... There is no ifcopenshell.util.element.get_layer() in https://github.com/IfcOpenShell/IfcOpenShell/blob/v0.7.0/src/ifcopenshell-python/ifcopenshell/util/element.py or is there some other short smart way to get the layer.

   FreeCAD code for layer:

   https://github.com/FreeCAD/FreeCAD/blob/916fe37a6b757e3bf6d51fb65ebc412243125d8e/src/Mod/Arch/importIFC.py#L404-L411

   cheers bernd

5. M by Moult on 9 Nov 2021 # +1 votes

   Sorry no layer utility. PR welcome :)

   The should_skip_usage determines if you want to skip the material set usage and jump straight to the material set. Usages are per instance, so sometimes its not what you're after.

6. B by bernd on 10 Nov 2021 #

   https://github.com/IfcOpenShell/IfcOpenShell/pull/1869

7. M by Moult on 16 Nov 2021 # +3 votes

   ... and we now have an ifcopenshell.util.element.get_layers()! https://github.com/IfcOpenShell/IfcOpenShell/commit/41486ba08a3ddcbd5dd40a086dd9b96ca6a3fbaa

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