Hello Wall - IfcWallElementedCase

R by RaphaëlVouilloz on 17 Apr 2023 # +1 votes

@theoryshaw said:

@Coen said:

Just out of curiosity, is it possible to IfcRelAggregates two seperate IfcRelAggregates? Can't think of a usecase for this. but who knows.

Yes, you can do nested aggregates.

Yes this works well, for example I have made an IfcRoof composed of IfcElementAssemblies, composed themselves of IfcMembers.

You have to aggregate the empty (eg IfcElementAssembly) of the first Collection to the second empty (eg IfcRoof).

C by Coen on 18 Apr 2023 #

I was looking at this code:

https://blenderbim.org/docs-python/autoapi/ifcopenshell/api/aggregate/assign_object/index.html

Is there any code example in which you could IfcRelAggregate IFC elements with a list of globalids?

C by Coen on 18 Apr 2023 #

@theoryshaw

Would be cool if the 'IFC Array' tool created aggregates, by which you could apply these ifcopenelement outlines.

Trying to experiment with it now, but with no succes :(

C by Coen on 18 Apr 2023 #

Is there a step by step tutorial somewhere on how to add a void to an IfcElementAssembly?

I'm really struggling with the order of selection and clicking buttons:

T by theoryshaw on 18 Apr 2023 # +1 votes

yes, here. :)

https://community.osarch.org/discussion/comment/15244/#Comment_15244

C by Coen on 18 Apr 2023 #

@theoryshaw said:

yes, here. :)

https://community.osarch.org/discussion/comment/15244/#Comment_15244

Thanks, I see at the end how to modify the geometry of the void, this was not clear to me.

G by Gorgious on 18 Apr 2023 # +1 votes

I was not so convinced about the new void workflow at first, but this is really awesome and very powerful.

C by Coen on 20 Apr 2023 #

Am I using this correctly?:


    def create_assembly(self, model, element_list):

        assembled_element = run("root.create_entity", model, ifc_class="IfcElementAssembly",name='my_collection')

        for i in element_list:

            run("aggregate.assign_object", model, product=assembled_element, relating_object=i)

element_list looks like this:


[#202=IfcCovering('3Qn21p1p5EL8y2qdjXrWg6',$,'insulation',$,$,#223,#213,$,$), #225=IfcCovering('0Z7y9GduPDkwEkOkhAzED6',$,'insulation',$,$,#246,#236,$,$), #248=IfcCovering('1A4n9VM5XD9fjZdtJ3lhFj',$,'insulation',$,$,#269,#259,$,$), #271=IfcCovering('1AIix1i916xBNV_TOWHCGx',$,'insulation',$,$,#292,#282,$,$), #294=IfcCovering('1N65f0cKf1cwFvuV8H7Tfk',$,'insulation',$,$,#315,#305,$,$), #346=IfcCovering('2eeTeOBmX7_eobur6$sl4W',$,'insulation',$,$,#367,#357,$,$), #38=IfcMember('1yqJ4GTn5AqeX2x3ju6l9F',$,'my_beam',$,$,#56,#57,$,$), #59=IfcMember('3ZKjHPpWb8V8WLMu1qE1uw',$,'my_beam',$,$,#76,#77,$,$), #79=IfcMember('0UH0M7Iiv6yvCU3PosVy7I',$,'my_beam',$,$,#96,#97,$,$), #99=IfcMember('2qt0xIrZPCm8CeqKBcgchd',$,'my_beam',$,$,#116,#117,$,$), #119=IfcMember('1dRfBa9zLAlu05ax4a_3Mv',$,'my_beam',$,$,#136,#137,$,$), #139=IfcMember('3pkeFk8zH7W9h0uHP9Pl2w',$,'my_beam',$,$,#156,#157,$,$), #159=IfcMember('1_LmUDkbHAAgr$DQ4Yv$D0',$,'my_beam',$,$,#176,#177,$,$), #179=IfcBeam('0j7rHy9OnBvAB9vMKrg2oj',$,'my_beam',$,$,#196,#197,$,$)]

When I load the IFC in BlenderBIM I see on the last item of the list is added to the collection.

I might be doing some basic Python fundamental scripting wrong? :/

C by Coen on 21 Apr 2023 #

@theoryshaw said:

Wow, I guess you can!

never knew.

This clip is very useful, I tried to replicate it several times. However it seems when I save the ifc it seem the opening randomly cuts elements too much.

BimCollabZoom

BIMVision

BlenderBIM

Am I missing a step in BlenderBIM? Attached is the IFC file from the screenshots