About Mathias Jonathan

Mathias Jonathan · 2025-10-21

Hi ! Is it possible to set expression Based Properties with the C++ API, and modify those expressions?

Mathias Jonathan · 2025-10-20

Hi! I was thinking about an alternative to the way my sum area python script works: https://community.graphisoft.com/t5/Archicad-Python-API/PYTHON-Sum-area-script/td-p/371704 Atm, the result of the sum is stored in each zone. The problem is that if the zone is locked, the la...

Mathias Jonathan · 2025-10-20

Hello everybody! I am currently working on creating a comprehensive library of examples of all Python commands (official and tapir) available to date, which I will share once it is finished. The goal is to make it easy to vibecode by giving the AI scripts that clearly expla...

Mathias Jonathan · 2025-09-03

The level of 3D detail should be based on criteria rather than on all railings in model view options. The option is very powerful, but it means that all railings will have the same level of 3D detail and the same surface area (!). Why? -We rarely have the same surface for al...

Mathias Jonathan · 2025-05-15

I created a "proof of concept" with claude AI for automatic numbering the element ID using proximity to a polyline. How to use the script? -Place the gdl object "AutomaticNumberingPolyline" (This is a renamed version of SinceV6 polyline object that you can find here ) on the...

Mathias Jonathan · 2026-03-24

I use a python script (Linked here) that enable claude AI to use the LP_XML converter tool app and I ask Claude AI to analyse some official object to help me with it (Object + macros). You could also give claude AI the page to the correct documentation (GDL center).

Mathias Jonathan · 2026-03-24

Tbh, I'm working with claude code and a small script that extract/recompile GDL, a few GDL pdf linked to the project and one or two object examples linked to what I want to achieve. Exactly how I would code by myself. IA can take care of multiple object at the same time (Mac...

Mathias Jonathan · 2026-03-19

Thanks for the new look @Noemi Balogh and the team. It looks like a lot more professionnal now!

Mathias Jonathan · 2026-02-20

You should try to update/reinstall your python to the last version.

Mathias Jonathan · 2026-02-16

The subject emerged in archicad 17 with building materials (Link not online anymore): https://web.archive.org/web/20231202223150/https://community.graphisoft.com/t5/Project-data-BIM/Calculation-Schedule-Troubleshooting-Guide/ta-p/303554 Issue and Cause With Priority Based ...

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Expression Based Properties

Is there a limit in lenght for custom properties formulas?

[PYTHON TAPIR] Script to export issues to excel including screenshots and comments

Railing Detail Level in 3D and Section should be based on criterias

[SCRIPT] Auto-numbering elements using a polyline using Tapir

Re: GDL - Python and AI

Re: GDL - Python and AI

Re: Graphisoft Community is getting a fresh look!

Re: [SCRIPT] Auto-numbering elements using a polyline using Tapir

Re: Correct way to calculate Exposed Surfaces with convex wall angles?

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