algorithmic modeling for Rhino

Jon Mirtschin
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Lock GH UI
6 Replies

Started this discussion. Last reply by huaxiamengqing Jun 4, 2015.

5 Replies

Started this discussion. Last reply by David Rutten Nov 23, 2012.

Shatter periodic nurbs curves
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Started this discussion. Last reply by Jon Mirtschin Apr 21, 2012.


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Jon Mirtschin replied to Anne Holthaus's discussion Voronoi and geometry gym in the group Geometry Gym BIM
"Hi Anne, Interesting definition.  I haven't had time to try and resolve it, but here's the strategy I would try. When you start subdividing into cells, you can generate your points and either dispatch to the cell they are contained…"
8 hours ago
Jon Mirtschin replied to Anne Holthaus's discussion uniform loads in the group Geometry Gym BIM
"Sorry, I must have only quickly looked at your model (I thought it was using ifc components, not gsa).  But your clarification helps me understand your question. I've attached a modification, simply multiply the load intensity by -1 and…"
May 16
Jon Mirtschin replied to Art Agent's discussion Grasshopper ----> GeomGym IFC--------> Revit in the group Geometry Gym BIM
"What units do you usually use in your rhino document? I assumed mm, you might have to scale the numeric inputs to the gh script if you use something different.  I suspect the column wall thickness is too small for them to be generated in revit…"
May 16
Jon Mirtschin replied to Anne Holthaus's discussion uniform loads in the group Geometry Gym BIM
"Hi Anne, Thanks for the email.  I can see the uniform loads are being generated and included in the IFC file, which application are you importing the IFC into that doesn't recognize the loads? Cheers, Jon"
May 16
Jon Mirtschin replied to lee ji yonh's discussion IFC Python question in the group Geometry Gym BIM
"Hi JiYong Lee, Thanks for the discussion post. I recently open sourced the core of my IFC library. As part of the work to do this, I significantly refactored much of the code, breaking some of the old…"
May 9
lee ji yonh commented on Jon Mirtschin's group Geometry Gym BIM
"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…"
May 9
Jon Mirtschin replied to Art Agent's discussion Grasshopper ----> GeomGym IFC--------> Revit in the group Geometry Gym BIM
"Hi, You didn't attach a .3dm file (the points seems to be referenced), I internalized some points in the attached.  Also the floor/slab component needs the closed curve.   One other thing to note is that I use advanced aspects of…"
Apr 19
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Apr 4
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Apr 1
Jon Mirtschin added a discussion to the group Geometry Gym BIM
Mar 31
Jon Mirtschin posted a photo
Mar 31
Jon Mirtschin replied to Steven van Eck's discussion Local axes of beams needed for gridshell structure in the group karamba
"Hi Steven, The Karamba to IFC exporter that I've developed should preserve orientations (and other structural analysis attributes), and then you can import the IFC file into Scia using my translator. Refer…"
Mar 21
Jon Mirtschin replied to Yosua's discussion Grasshopper export to GSA and SAP, ggzzliscense error
"Hi Yosua, As per the email/skype discussions, your computer is now licensed. For anyone else experiencing problems, refer to If you're at a university or working at a company, ask others also there that…"
Mar 21
Jon Mirtschin commented on Jon Mirtschin's group Geometry Gym BIM
"Hi Derk, If you add an analysis case, then you will get results. I've emailed you the definition. Cheers, Jon"
Mar 21
Derk Bos commented on Jon Mirtschin's group Geometry Gym BIM
"Hi Jon, I'm trying to do a non lineair analysis on a tensegrity structure in GeomGym. For some reason, however, I don't obtain any results. The ggGSASolver component doesn't give any error message, but for some reason the analysis…"
Mar 20
Jon Mirtschin replied to Anastassia Rouchy's discussion Help- Geodesic Dome- Beginner Grasshopper
" If you're happy to use a plugin, Bullant has a geodesic dome generator.  Example is attached."
Mar 18

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Geometry Gym Plug-ins - AEC BIM and Computational Geometry

Grasshopper plug-ins assisting Architectural and Structural modelling including BIM under constant development and improvement.  Computational geometry solvers useful to many other designers.

StructDrawRhino is a Generic Structural…

Posted on April 17, 2010 at 12:00am — 11 Comments

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At 3:42am on July 18, 2014, shahryar said…

Dear Jon,

I am trying to import one gbXML file which was exported by Revit .I have  loaded it in Ecotect to apply material. Now, I am planning to import in Rhino to analysis in grasshopper. I have downloaded geometrygym plugin but it does not work in Rhino and just appears in grasshopper. Would you please guide and help me by offering any information how I can to import gbXML files to Rhino.

Yours sincerely,

At 10:41am on August 27, 2013, Gabriel Áh said…

hey Jon, 

 Im trying to use geo gym, but this legend pops out:

where can i get the free evaluation code and then extend it to the educational version

by the way thanks for sharing, and congrats for the hard work



At 12:43pm on June 7, 2013, Mehdi Hasanzadeh Samadi said…

is there any plug-in for revit 2013 32-bit too ? i just see the 64-bit version !!

At 3:36am on January 16, 2013, trung1133 said…


i am not able to learn anything from the example files as some things turn red!!! then back to orange if i remove the NAME (N) i.e. nameless component

please help

At 11:25am on January 13, 2013, John Stanford said…

Hi Jon, thanks for adding, i'm pretty interested about your work and i've been looking around your site some time ago.

i've been using grasshopper only for quiet sometime now, so im still trying to figure out the basic stuff, but i think it would provide such a great help in doing my architectural studies combined with BIM software at hand

has there been any new update about grasshopper and archicad connection?


At 8:43pm on December 20, 2012, Chansoo Byeon said…

Hello Jon

Thanks for the add! 

Could you give me some tips of where I should start? I really want to master Grasshopper.

At 5:35am on October 28, 2012, Guido Nieri said…

Hi Jon,

I am a student and I am interested in your plug-in. I would like to use that on my thesis, are there any student version?

Thank you

At 3:31am on August 14, 2012, djordje said…


I knew we can count on you, you Australian genius !!!

At 5:07pm on August 13, 2012, djordje said…

Jon I took a look at your article about Rhino/Grasshopper to Vasari import.

Is there any other way to eliminate the Revit in the process of importing?

At 6:12pm on July 6, 2012, Diego Xavier said…

Hi Jon!

Thank you for the Geom Gym activation. I´ll be participating in a workshop that maybe will use your software!





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