# Question about the structure of compas\_3gs

**URL:** <https://forum.compas-framework.org/t/question-about-the-structure-of-compas-3gs/432>\
**Category:** compas\_3gs\
**Created:** [February 1, 2021, 2:21am UTC](https://forum.compas-framework.org/t/question-about-the-structure-of-compas-3gs/432 "2021-02-01T02:21:33Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![js\_in\_snu](https://avatars.discourse-cdn.com/v4/letter/j/3be4f8/32.png) [@js\_in\_snu](https://forum.compas-framework.org/u/js_in_snu)\
**Post date:** [February 1, 2021, 2:21am UTC](https://forum.compas-framework.org/t/question-about-the-structure-of-compas-3gs/432/1 "2021-02-01T02:21:33Z")

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Hello 🙂  
I’ve been trying to use compas\_3gs, and studying the examples in [https://blockresearchgroup.github.io/compas\_3gs](https://blockresearchgroup.github.io/compas_3gs) !!

Most of the examples import ForceVolMesh from compas\_3gs.diagrams, but there’s no ForceVolMesh python file in the compas\_3gs/diagrams folder.  
I found ForceVolMeshObject in compas\_3gs/diagrams/polyhedral.py… , I’m getting confused…  
Is there any idea?

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**Author:** ![tomvanmele](https://sea1.discourse-cdn.com/flex015/user_avatar/forum.compas-framework.org/tomvanmele/32/13_2.png) [@tomvanmele](https://forum.compas-framework.org/u/tomvanmele)\
**Post date:** [February 23, 2021, 7:45am UTC](https://forum.compas-framework.org/t/question-about-the-structure-of-compas-3gs/432/2 "2021-02-23T07:45:44Z")

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@juney could you have a look?

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**Author:** ![juney](https://avatars.discourse-cdn.com/v4/letter/j/d26b3c/32.png) [@juney](https://forum.compas-framework.org/u/juney)\
**Post date:** [February 23, 2021, 8:32am UTC](https://forum.compas-framework.org/t/question-about-the-structure-of-compas-3gs/432/3 "2021-02-23T08:32:01Z")

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Hi there, @js_in_snu . `ForceVolMesh` is a class object within the module `polyhedral.py`. So to import the ‘ForceVolMesh’ class, you should do:

`from compas_3gs.diagrams import ForceVolMesh`

The examples from the compas\_3gs homepage are going through some minor updates at the moment. Also, the most [recently released and available version](https://github.com/BlockResearchGroup/compas_3gs/releases) of compas\_3gs can be downloaded as an executable, installable plugin, which should provide all the key functionalities as a toolbar in Rhino. The installation procedure is the same as [RV2](https://blockresearchgroup.gitbook.io/rv2/quick-start/windows-install).