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.

Members: 1588
Latest Activity: on Wednesday


Installation instructions are located in this discussion,

Discussion Forum

Red dot/ point on the curve: what does it mean actually?

Dear all and Jon,Does anyone have same problem as mine, even though it might be a stupid question or situation i am sinking in..My question is: what does the red on the line mean? i do wanna…Continue

Started by Cyrus Gil on Wednesday.

Exporting Karamba to IFC file 1 Reply

Hi Guys! I am new to geometry gym and I am having some troubles exporting my karamba model to IFC. the error message I get is Solution Exception: Non - static method requires a target.I have no idea…Continue

Started by Camilla Rozario. Last reply by foodove Aug 5.

Solver Example? 3 Replies

Hi guys and Jon,I am currently doing a Dome structure in plug-in Geometry Gym in GH. I would like to able to do the analysis in Geometry Gym, and these results can be showed in GSA. But i found there…Continue

Started by Cyrus Gil. Last reply by Cyrus Gil Aug 2.

Robot error message importing IFC from Karamba 1 Reply

Dear All, I'm new to this forum so, hello.I'm having issues exporting my model from Karamba to Robot. IFC4 is created but Robot dislpays an error " contains an incorrect schema".any ideas?many…Continue

Started by Pep Tornabell. Last reply by Jon Mirtschin Jul 13.

Measuring units Karamba to IFC 2 Replies

Hi,I have a question about Karamba. I want to use Karamba and make IFC files from it after the structure is done, but i know Karamba measures in meters while a program like Tekla measures in…Continue

Started by Giorgio. Last reply by Giorgio Jul 11.

Not able to bake model to GSA 9 1 Reply

Hi Jon,Before I used GSA UNIPACK 8.x and Rhino 5, ggGSA worked fine.Recently I moved to a win10 pc, upgraded to Rhino 6, and also latest GSA 9 installed.I opened the old file which was good before…Continue

Started by Jing. Last reply by Jing Jul 4.

HRESULT: 0x80131044 1 Reply

Hi Jon, I have a problem with the last build for RH_5. ggRhino5IFC v1.6.59.msi (25th May 2018)After installation when I'm hovering over parameters in GH to check what's inside I got an error:…Continue

Started by Konrad Zaremba. Last reply by Jon Mirtschin Jul 2.

From Karamba to Tekla 2 Replies

Hi,I have a question if its possible to convert a Grasshopper Karamba model to Tekla with all the beams and colums included? The Tekla plugin can only make a beam from a line with manual input, but i…Continue

Started by Giorgio. Last reply by Giorgio Jun 5.

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Comment by Hakam husam on February 27, 2017 at 6:49am

Hey guys, ive been trying to use GG plugin, unfortunately I am an architect not a structural engineer, no clue in how to know what each section in the catalogues is shaped like, how can I find out this ? is their a PDF catalogue ?

my 2nd question, how can I create a custom profile to enter in the GGsweep ?

Comment by Morten Ydefeldt on January 23, 2017 at 5:20am



As you can see from these two geodesic domes it seems like it can be created with two different permutations.

The geodesic dome which I am able to construct in GG is the 'wrong' one, I want the edges of the pentagons to be parallel. I believe it's a question about how the base icosahedron is flipped when the dome is created, is there a way to construct the right geodesic dome from your script?

Comment by Jon Mirtschin on December 15, 2016 at 8:45am

Hi Mostafa,

I just emailed you, refer to for license request procedure.

Comment by mostafa elhodiry on December 15, 2016 at 8:04am

hai all 

can anyone help for getting license for a trial version ( sap and etabs ) 

Comment by Hiroshi Amano on September 29, 2016 at 1:14am

Hi Jon,

Thank you for quickly sharing many interesting examples.

The grid loading component looks working well in my current case.

Kind regards,


Comment by Jon Mirtschin on September 28, 2016 at 11:49pm

Hi Hiroshi,

I have a bespoke grid loading component, but it doesn't seem to have been used much so I'd advise using the GSA functionality.

I just created a folder to put sample files in Dropbox, browse into the Samples > Structural Analysis > GSA folder and there is a grid loading script there.



Comment by Hiroshi Amano on September 28, 2016 at 8:25pm

Hi Jon,

I'd like to try to use ggGSALoadGridArea for assigning wind loads on a grid frame.

Do you have any example file of using that component?  I thought the component's parameters basically correspond to GSA inputs, but there are something I'm not sure how to assign in gg.

Thank you and regards,


Comment by simone moroni on August 22, 2016 at 3:53am

Hello, I'm trying to bake grasshopper 2D structure (is a section of my structural pannel) with the comand "ggSAPbakemodel" sap, but when I select "open model in SAP" it doesn't work and rhino goes to crash. I've SAP 14  version, is it too old for work with geometry gym?

Thank you very much for reply

Comment by lee ji yonh on May 9, 2016 at 1:14am

Hi Jon 

I see your post about IFC script(python).

At first, thank you about sharing your research.

I see your IFC python sample file.

But when I opened IFC python file, i happened error message.

Suddenly i wonder this cause.

Also, i am likely to studying IFC python script.

so I request you why this problem happened.

and how do i script correct for operating this component?

Comment by Jon Mirtschin on March 21, 2016 at 3:10am

Hi Derk,

If you add an analysis case, then you will get results.

I've emailed you the definition.




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