About Mathias Jonathan

Mathias Jonathan

Hi everybody! I was asking myself if there is data that we can use to feed AI to help us coding? If not, can we "scrape" the gdl center website data for AI purpose? What is the official position of Graphisoft on this?

Mathias Jonathan

Hello,I am developing a Tapir add-on command that reads graphical override rules and allows creating new ones programmatically. While testing, I found an inconsistency between ACAPI_GraphicalOverride_GetOverrideRuleById and ACAPI_GraphicalOverride_CreateOverrideRule regardin...

Mathias Jonathan

I'm working on a Tapir command (open sourve addon) and need to enable the modify meshes command to be able to remove all level lines from an existing mesh element via ACAPI_Element_Change. Creating a mesh with no level lines works fine (null handles from BMAllocateHandle(0, ...

Mathias Jonathan

Hi everybody! I'd like to share a small tool (made with claude AI) that generates a reference DXF file containing Archicad Symbol Fills translated into AutoCAD hatch patterns. Why is this useful? When exporting from Archicad to DWG/DXF, Vectorial Fills are correctly exported...

Mathias Jonathan · 2026-06-02

Hi everyone, Here's a technique I've been thinking about for a while: using the Project Information fields as a lightweight, human-readable database that any team member can update without touching the property expressions themselves. The idea is simple: you store your looku...

Mathias Jonathan

Using a website reference uses a lot more token, and reach the limit of our subscription a lot sooner. I sometimes reach my daily limitation in minutes when using Claude on gdl on some object. I began to use Claude on C++ and I never reached the limit of my subscription beca...

Mathias Jonathan

Did you try this addon? https://bimdots.com/product/ai-labs/ 

Mathias Jonathan

Ok, I found a simple solution: giving two sublines outside the mesh polygon will delete the sublines.

Mathias Jonathan

An hidden property that will transform element with 1 decimal place to a 2 decimal place , injecting a 0 after the "," ? Using split to retrieve data after "," then length then a concatenation if lenght =1 ?

Mathias Jonathan

Yes, Design Options are really important in our actual workflow! This is the kind of game changing tool we need. To be honest, I feel a little torn. I’d almost like to ask for more modern tools like new doors and windows, but given developments like MEP (from what I’ve read ...

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[AI] GDL data for IA

ACAPI_GraphicalOverride_CreateOverrideRule rejects special pen values 0 and -1 for fillBackgroundPen

How to remove ALL level lines (sublines) from an existing mesh element via C++ API?

[Python tool] Exporting symbol fills in autocad

Using Project Info as an editable lookup table — a practical example

Re: [AI] GDL data for IA

Re: Is there any API to capture/export a View to an image file?

Re: How to remove ALL level lines (sublines) from an existing mesh element via C++ API?

Re: How 2 get scheules to understand 2.1 vs 2.10...?

Re: What happened to the promised 'regular new features' benefit of switching to new subscription mo

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