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BlenderBim exclude certain IFC elements?

1. A by Ace on 16 Aug 2022, edited 14 Dec 2023 #

   Hey everyone, So I'm trying to exclude a physical representation of my sewer run on a plan, I've got them drawn as an extruded plane so I can see them in 3d and then also in 2d as a line.

   

   My issue is when I try to exclude the element from the camera (so I can see the 2d line style)

   

   It throws up this error when I try to print the svg:

   

   Not certain If I just haven't referenced the IFC element properly?

2. V by vpajic on 17 Aug 2022 # +3 votes

   Hi @Ace - it appears you're missing a dot at the beginning of IfcBuildingElementProxy.

   So your exclude box should read: .IfcBuildingElementProxy

   Note, if you want to exclude the object with name Sewer line, your syntax would then be:

   .IfcBuildingElementProxy[Name="Sewer line"]

3. A by Ace on 18 Aug 2022 # +1 votes

   Hey @vpajic

   It's working you are a flippin genius!

   Thanks for the help

4. T by theoryshaw on 18 Aug 2022 # +1 votes

   Seems like good wiki content ;)

5. M by Moult on 18 Aug 2022 # +1 votes

   https://wiki.osarch.org/index.php?title=IfcOpenShell_code_examples#IFC_Query_Syntax

6. A by Ace on 18 Aug 2022 #

   Hey @vpajic sorry to bug, would you happen to know how to include more than one excluded item?

   For instance I want to exclude the Sewer line and the 3m building line in this case:

   

7. A by Ace on 18 Aug 2022 # +1 votes

   @theoryshaw said:

   Seems like good wiki content ;)

   When I'm done with this, I can probably fill out this whole wikipage

   https://wiki.osarch.org/index.php?title=A_simple_step_by_step_example_of_a_project_with_BlenderBIM_Add-on&action=edit&redlink=1

   I think that would be helpful if it is comprehensive

8. M by Moult on 18 Aug 2022 # +2 votes

   Use "|" instead of ","

9. A by Ace on 18 Aug 2022 #

   Thanks @Moult !

10. V by vpajic on 18 Aug 2022 # +5 votes

    @Ace - here's a bonus TIP : You can use the helper tool "IFC Selector" to generate the syntax for you ?:

    

11. V by vpajic on 18 Aug 2022, edited 18 Aug 2022 # +1 votes

    @Ace - Once you click on 3, you can copy the syntax from the field to the left, and paste it into the 'exclude' field

12. A by Ace on 18 Aug 2022 # +1 votes

    That's incredibly useful thanks @vpajic !

13. F by Fabien on 14 Dec 2023 #

    Hi everybody. First I'm french and I don't speak very well english. Excuse me if my sentences aren't good. Actualy I try Blender BIM and particulary the exclude or include function. I read this page and I try with the method, but this the result on the screens. I don't undertand why. Can you explain me ? Thank you for your answers.

    

    

14. A by Andrej730 on 14 Dec 2023 # +1 votes

    @Fabien hello! BlenderBIM moved to new selector syntax and your expression now become IfcWall, Name=Cube. You can read about new syntax here - https://community.osarch.org/discussion/1580/new-ifc-facet-based-selector-syntax/p1

15. F by Fabien on 14 Dec 2023 #

    Thank you very much @Andrej730 ! That works ! And thanks for the link.

    But I have an other question : Can we exclude all objects of a collection (IfcElementAssembly/Groupe) ?

    I added objects with "aggregates" and a "Empty" object have the same name of the collection and it is the only one to be excluded.

16. T by theoryshaw on 14 Dec 2023 #

    Can we exclude all objects of a collection (IfcElementAssembly/Groupe) ?

    Unfortunately, I don't think this is possible yet. https://community.osarch.org/discussion/comment/17818/#Comment_17818

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