topic Re: [SCRIPT] Auto-numbering elements using a polyline using Tapir in Archicad Python API

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

Mathias Jonathan — Mon, 19 May 2025 10:32:03 GMT

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 floor plan.

-Select the object "AutomaticNumberingPolyline" and the elements to number.

-Launch the script (Python palette or double click on the script (The script will work on the first opened archicad instance)

-When asked, Enter the starting number for the first element

-Done

here is a video example (Please forgive my English, we're not very well known for our linguistic talents in France.^^):

How to install the script?

-Install the last version of Python

-Install the last version of the Tapir Plugin (Opensource plugin that gives access to new python commands in archicad that are needed for this script)

(Optionnal for easy use if you have a subscription or SSA)

-How to show the python palette

How does the script work?

1-Recover the coordinates of a polyline object coordinates stored in the object's GDL parameters and retrieved with the corresponding Tapir command
2-Recover the C centers of the 2D bounding boxes of each object to be numbered O
3-Find the nearest point P on the polyline for each C-center
4-Determine the relative position of each point P along the polyline
5-Sort objects O according to this position
6-Number the objects in this order

Thanks a lot to the Tapir team, especially @Tibor Lorantfy, @Viktor Kovacs, and @jorgebeneitez.

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

scottjm — Mon, 19 May 2025 07:58:39 GMT

Wow nice! This is a very interesting and exciting proof of concept.

The thing about these creations is they unfortunately aren’t particularly accessible for a basic user. (Ie the user needs to have python and tapir installed and know how to open the python palette and find the script and run it) But to make them accessible basically means you’d have to write the whole thing in c++ as a full blown addon. Python is so much nicer to code in.

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

Mathias Jonathan — Mon, 19 May 2025 08:19:08 GMT

Tapir's development team has created a much more accessible palette for launching scripts (in progress). Graphisoft will be releasing an addon store, which should help deploy this kind of solution.

I've modified the script to use a real polyline instead of an object, which should make it much easier to use.

I'll share this new version once the new Tapir update is stable.

The other advantage of python is that you can quickly ask the AI to code these scripts, if you give it the missing part: the connection between archicad and python.
With a library of simple scripts, it's easy to imagine “power users” creating tailor-made tools for their colleagues.

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

Mathias Jonathan — Mon, 19 May 2025 08:23:48 GMT

And I think that the big issue is not to give a new tool that can be used “passively”, but rather a new opportunity for “power users” to propose new things, and to share them, by lowering the barrier of necessary knowledge (C++ to Python).

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

Guillermo1 — Mon, 30 Jun 2025 20:38:43 GMT

Hello, i can´t load the .gsm file in to archicad 26

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

Mathias Jonathan — Mon, 30 Jun 2025 20:41:58 GMT

Hi! If you use the last official version of tapir, you won't need to download the script or an object: the script is part of the official package and now works with one polyline (the tool, not an object).

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

Guillermo1 — Mon, 30 Jun 2025 22:52:08 GMT

oh thanks, how can i install tapir?

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

Nathanael_Hervouet — Tue, 01 Jul 2025 17:09:54 GMT

Hi @Mathias Jonathan ,
Thank you for your work and for sharing !
I'm very interested in this script.

It works, but I have an interface issue : I can't see the panel to start numbering.
I'm working on macOS 15.5 Sequoia, and I have the same with both Archicad 27 and 28.
What can we do about it ?

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

Mathias Jonathan — Tue, 01 Jul 2025 07:44:16 GMT

You have 2 different versions of the script: the Beta2 is outdated, the tapir one on the right seems to be the last one. Do you know which version you used?

NB: ~~On peut faire une visio si tu veux.~~ We can make a video if you want

@Guillermo1 Here: https://github.com/ENZYME-APD/tapir-archicad-automation

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

Nathanael_Hervouet — Tue, 01 Jul 2025 11:33:55 GMT

I used the SCRIPT_AutomaticNumberingBeta2.py as I could download the script from this page : Tip of the Month: Auto-number elements using a polyline in Archicad
Where can I get the latest script ?

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

Mathias Jonathan — Tue, 01 Jul 2025 11:36:47 GMT

The latest script is included in the last tapir installation. The name of the script is "AutomaticNumberingBasedOnPolyline" and you can see it in your screenshot of the tapir palette. You just need to select your elements + 1 polyline and launch the script with the triangle.

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

Guillermo1 — Tue, 01 Jul 2025 18:15:54 GMT

HI , ,i run the tapir addon but get this windows , im doing something wrong

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

Mathias Jonathan — Tue, 01 Jul 2025 18:20:41 GMT

Did you install the last version of python?

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

Guillermo1 — Tue, 01 Jul 2025 18:22:13 GMT

yes , and add the tapir extension

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

Guillermo1 — Tue, 01 Jul 2025 20:42:53 GMT

Now it works ok!, just needed to add python to path!

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

kmitotk — Tue, 05 Aug 2025 00:39:40 GMT

Very nice tool!

Is there a python script like this, or the script can be modified, for auto-numbering the zone numbers?

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

Milan — Wed, 24 Sep 2025 14:20:47 GMT

Hello there,

To turn on the python palette, Archicad 27 requires me to have the SSA subscription, for which I have no way to obtain, since I use one of my company's shared licenses.
I have set up Python, Tapir, the numbering polyline, and the objects, but running the py script from the desktop seems to fail.

I have used instructions and the script from this link:
https://community.graphisoft.com/t5/Graphisoft-Insights/Tip-of-the-Month-Auto-number-elements-using-a-polyline-in/ba-p/665634

Is there a way to make it work?

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

Mathias Jonathan — Wed, 24 Sep 2025 14:23:42 GMT

What error message appears?

Did you use Tapir palette?

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

Milan — Wed, 24 Sep 2025 15:12:20 GMT

I haven't used Tapir palette at first, I didn't even notice it appeared.
I have tried it now, and it didn't work at first, but after installing uv, uvw, uvx, adding path in sysdm.cpl Environment variables, and checking it is connected in powershell, Tapir finally works.

Now I have this problem: it doesn't register the Automatic Numbering Polyline, even though its obviously there and selected.
I have also tried to add the python script SCRIPT_AutomaticNumberingBeta2.py into Tapir with + button, but it crashes ArchiCAD when selected.

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

Yves — Wed, 24 Sep 2025 15:38:27 GMT

I think now you need to use a polyline and not the "polyline" object