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: 1623
Latest Activity: Jan 12


Installation instructions are located in this discussion,

Discussion Forum

Load Case Combination

Hi..I'm trying to use the GeometryGym plug-in "ggRhinoRobot" to perform a structural analysis model.I want to define different load cases and different combinations of these load cases. But the…Continue

Started by Zaineb Tounsi Oct 15, 2019.

IFC to Revit inserts at wrong location

Hello,I am trying to get my IFC Data(simple box geometry) into Revit. The geometry was "traced" from point cloud data and therefore is georeferenced. When I import the IFC data and point cloud into a…Continue

Started by Tim Barnes Jul 24, 2019.

transfer rhino to sap

hi,can anyone help me about this: i want to transfer my rhino file in to sap2000 v20,and i'm new to sap.i found out that i should use the geometry gym i downloaded […Continue

Started by mahsa May 21, 2019.

Mass Source Modification in ggSap 1 Reply

Hi JonI am using your very helpful ggSap plugin for more than 1 year for my Ph.D thesis.Now, I wonder to know is there any way to modify "mass source" for seismic analysis in ggSap?I mean, Sap2000…Continue

Started by Ghazal Javidan. Last reply by Alessandro Buffi Apr 19, 2019.

SAP2000 42 Replies

Here's a thread for questions and suggestions specific to the Geometry Gym addon to interact with SAP2000 Structural Analysis.  Note you can filter my blog for posts/examples specific to SAP 2000…Continue

Tags: Analysis, Structural, Gym, Geometry, SAP2000

Started by Jon Mirtschin. Last reply by Jon Mirtschin Mar 30, 2019.

Oasys GSA 50 Replies

A discussion thread for posting questions and examples relating to Analysis model generation in Grasshoper to Oasys GSA.Wouter Brok raised the question here…Continue

Tags: Geometry, Gym, Analysis, Structural, Oasys

Started by Jon Mirtschin. Last reply by Jon Mirtschin Mar 30, 2019.

How to obtein moments reaction in different points?

Hello everyone!I can get node displacement at any point, but i can´t do the same with Moments.I can get moments reactions at the start point and the end point, but I can´t do the same at any other…Continue

Started by Andrew Feb 7, 2019.

Change profile alignment/insertion point 2 Replies

Hi,I am using Geometry Gym to create elements and assign section properties to take into GSA.I want to change the insertion point of the profile to "top left", rather than the default setting,…Continue

Tags: Section Profile, Alignment, ggInsertPoint, Insertion point

Started by Tina Irvine. Last reply by Tina Irvine Jan 28, 2019.

Comment Wall


You need to be a member of Geometry Gym BIM to add comments!

Comment by djordje on August 25, 2011 at 2:41am
Or that captcha code is simply not hard enough to be broken by the spam bots.
Comment by Stefan Boeykens on August 25, 2011 at 2:27am
Spam is usually a sign that platforms are popular...
Comment by Astro/Naught on August 24, 2011 at 4:22pm

Ok, is there a reason why I am getting sooooo much spam mail via Geometry gym? For example:

A message from Lizzy Sanchez to all members of Geometry Gym on Grasshopper! You gotta eat!!  So, how about a $250 grocery gift card!!


If this keeps up I am unsubscribing.

Comment by Philipp on July 16, 2011 at 3:02am
just dreaming: will It be possible sometime to encript grashopper definition into revit/inventor parametrical families?
Comment by Jon Mirtschin on March 27, 2011 at 2:47pm
Hi Massimiliano, the thread above should help with instructions,  Basically if you type the rhino command sdrZZLicenseRequest If it's not clear let me know and I will help. 
Comment by Massimiliano Trave on March 27, 2011 at 7:21am
hi ,how can obtain the license to use geometry gym . thans in advance.
Comment by Rodrigo Vargas on February 18, 2011 at 1:57pm
Hey Guys, I downloaded the geometry gym but it keeps asking me for some command sdrZZLicenseRequest to activate most of the tools. I am currently working in Rhino 4,0 and grasshopper 8,0003. Do you know what can I do?
Comment by cmrhm on February 10, 2011 at 9:44pm
Jon, thanks for the invitation.  Hope I have time to play GH again soon.
Comment by Rafi on November 26, 2010 at 11:55am
Many thanks Jon.
Now everything functions what I need!
Comment by Jon Mirtschin on November 26, 2010 at 11:21am
Hi Rafi,

I found yesterday some (but not all) components had issues with GHv.0.8.0002 and 3, so I uploaded new builds of most today (If I've not uploaded one you need, let me know, the rest will be tomorrow).

I've also changed the location the plugins are loaded from (normally an issue for Windows64 bit users). If you already have todays versions and still have problems, please send me an email with a description of the error and I'll help resolve it.



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