topic Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly in Modeling

AC 22 (Win 10) - Subtraction with downward / upward extrusion not working properly (AC 21 stairs)

Takis — Fri, 19 May 2023 20:15:56 GMT

Hi, I am facing a problem with the Subtraction with downward and upward extrusion commands.

I didn't figure out yet when the problem occurs because sometimes it works and sometimes it doesn't work properly.

Simple subtraction works fine.

Can somebody check this out please.

Takis

Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly

Karl Ottenstein — Mon, 09 Jul 2018 16:26:07 GMT

No problem on MacOS 10.13.5 with walls/slabs. Could you say what you are using for your target and operator elements?

When you say 'sometimes it doesn't work properly' - do you mean it doesn't work at all? If it partially works - what is working / not working? Screenshot?

Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly

Takis — Mon, 09 Jul 2018 18:25:44 GMT

Karl hi, it partially works.
The problem is with Archicad 21 files edited in Archicad 22.
I'm trying to figure out when this is happening, I am facing the problem with:
1. Stairs as operator and mesh as target.
2. Mesh as operator and another mesh as target.

New Archicad 22 files do not occur any kind of the above problem.

Takis

Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly

Takis — Mon, 09 Jul 2018 18:52:14 GMT

The stairs created in Archicad 21 seems to have a problem with solid element operation upwards and downwards. Simple subtraction works fine.
The Archicad 21 stairs were edited in Archicad 22 and all their settings were changed to Archicad 22 stair settings.

The original Archicad 22 stairs were created in a new Archicad 22 file created from Archicad 22 Template and were imported in the migrated file. These stairs have no problem with solid element operations.

Takis

Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly

Takis — Mon, 09 Jul 2018 19:00:41 GMT

Picking up parameter from the original Archicad 22 stairs and injecting parameters to the imported Archicad 21 stairs resolves the problem.

At first I picked the parameters fron Archicad 21 stairs and inject the Archicad 22 stairs just to give my stairs materials e.t.c, then I changed the roles and picked parameters from Archicad stairs 22 and injected Archicad stairs 21.

Takis

Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly

Takis — Mon, 09 Jul 2018 19:04:09 GMT

Karl, in any case I have also informed my Resellers in Greece to take care of this problem.

Takis.

Re: Archicad 22 (Win 10) - Subtraction with downward / upward extrusion not working properly

Karl Ottenstein — Tue, 10 Jul 2018 17:01:33 GMT

Thanks, Takis, for narrowing this bug down to an issue with AC 21 stairs converted to AC 22, for posting all of this including the screenshots, and reporting to your reseller! I changed the subject line for this thread, if that is OK with you, so that other users can more quickly see the issue.

Re: AC 22 (Win 10) - Subtraction with downward / upward extrusion not working properly (AC 21 stairs)

Daniel Kovacs — Fri, 20 Jul 2018 12:43:46 GMT

Hi everyone,

We looked into this, and we found the problem. Turns out it doesn't depend on file version.

If the baseline of the stair doesn't touch or go through the surface of the mesh (in 3D), these options are not going to work. If you just subtract, it seems to work fine (and if the baseline doesn't go through it, you actually don't need upwards extrusion anyways), so you should be able to work on fine until this issue is fixed.

Regards,