algorithmic modeling for Rhino


Geometry Gym BIM

BIM (Building Information Modeling) enhancements for Rhino and Grasshopper, import/export to Revit, Digital Project, Bentley and Archicad amongst others.  Also Structure modeling (including analytic) and Computational Geometry Tools such as mesh relaxation/inflation and tessellation tools.

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Installation instructions are located in this discussion,

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I keep getting this error when using the GSA geometry gym bake component.1. ggGSARetrieving the COM class factory for component with CLSID {DA9D8CF0-713B-4E11-B1EB-5C2C47FD32A5} failed due to the…Continue

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need support on “ggGeoDome” 2 Replies

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Comment by Ravenerabnorm on November 5, 2020 at 5:16am
I have found that when I use ggSweepProfile on certain catalogue profiles the results are two dimensional i.e. on plan the profiles are a line, on elevation they look fine. Funnily enough the only profiles the sweepprofile fails to work on is I beams.
Is this a known bug or am I doing something incorrectly.
Comment by Bret Heyer on June 4, 2020 at 11:19pm
you can make a flange with construction points and a pline
Comment by nathanluke5 on June 4, 2020 at 6:00pm
Hi Arina,
Again you can create tapered sections using the ggRhinoIFC components. Can you please contact us at outlining which cataloguesprofiles you are wanting to incorporate.
Comment by nathanluke5 on June 4, 2020 at 5:59pm
Hi Lincoln, No you cannot create such a section in BullAnt currently. You could use ggRhinoIFC to create a compounded section. Is it for structural analysis?? We do allow creation of these sections in some of our analysis plug-ins also. If you want to discuss further please contact or post on the new Rhino Forum.
Comment by Arina on June 2, 2020 at 8:51pm

As far as I know, we can't customise a section to such extent in GG.

If GG happens to look into this issue, can you please look into

1. the customisation of a section tapered along length as well.

2. update the ggcatalogueprofile to incorporate the British Steel and EN10210/EN10219.


Comment by Lincoln on June 2, 2020 at 8:33pm

Dear all,

i am trying to build up a RHS with different flange thickness and web thickness. (like 400x300x8x15) But the BullAnt only can create RHS with same flange and web thickness. Can anyone know how to create such section? Many thanks!

Comment by nathanluke5 on May 5, 2020 at 9:01pm

Hi Diego, try updating your Etabs Plug-in. If it doesn't fix your issue please contact and we will gladly help you with fixing the issue.

Comment by Diego Abelino on May 4, 2020 at 7:22pm

Dear Jon,

I'm currently using Geometry Gym to create Frame elements, assign section properties and attributes to take into Etabs18.

the problem, that I'm facing is that the frame attribute "name" in the component "ggETABSFrameAtts" get not exported to Etabs. I can modify all the other attributes, but when I bake the model, the name of the Frame elements keep defined by default and not like I had defined previously with the component. Do you have any advice to solve this issue?



Comment by Ming Chong on July 18, 2019 at 4:17am

Hi, Just wondering do you have any plan to expand the functionality of GGEtabs, include components like diaphragm assignment, wind load assignment, ability to run analysis without bake and save, etc. That would be super helpful.

Comment by Schwarzchild on April 26, 2019 at 7:43am

Dear Jon,

I am using ggrhinoSAP to buid my model,when I bake model to sap2000,it says  "xxx SAP2000 not installed or in unexpected location",how can I solve this problem?

my sap2000 version:V17

Appreciate if you can help on that.



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