Roof trimming beyond the Pivot lines when trimming bodies are set to pivot lines.
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2024-07-05
05:28 PM
- last edited on
2024-07-07
10:19 PM
by
Laszlo Nagy
I have two multi-plane roofs. The upper roof trimming bodies are set to pivot lines. However, when I do the SEO subtract w/ downward extrusion it cuts the roof below at the contour lines. I can't seem to get it to behave as advertised. The screenshot included shows the Trimming body and you can see the hole in the roof below is way to big. Thanks for any insight. Sorry in advance if this topic has been covered, I didn't find it.
Operating system used: Mac Intel-based Ventrua 13.2
ArchiCAD 26 on 27" Mac
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2024-07-09 02:37 AM - edited 2024-07-09 02:39 AM
@Ivan Myers wrote:
For some reason thought I could punch a hole in the roof below using the pivot lines of the roof above. I'll use a different method.
Thanks
You can if you right mouse click > Connect > Trim Elements to Roof/Shell.
Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11

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2024-07-06 11:50 AM
SEO does not use the trimming body.
It uses the entire element.
Only the right mouse click Connect > Trim options se the trimming bodies.
Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
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2024-07-08 10:44 PM
Ok thanks,
For some reason thought I could punch a hole in the roof below using the pivot lines of the roof above. I'll use a different method.
Thanks
ArchiCAD 26 on 27" Mac

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2024-07-09 02:37 AM - edited 2024-07-09 02:39 AM
@Ivan Myers wrote:
For some reason thought I could punch a hole in the roof below using the pivot lines of the roof above. I'll use a different method.
Thanks
You can if you right mouse click > Connect > Trim Elements to Roof/Shell.
Barry.
Versions 6.5 to 27
i7-10700 @ 2.9Ghz, 32GB ram, GeForce RTX 2060 (6GB), Windows 10
Lenovo Thinkpad - i7-1270P 2.20 GHz, 32GB RAM, Nvidia T550, Windows 11
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2024-08-29
07:19 PM
- last edited on
2024-09-01
12:35 PM
by
Laszlo Nagy
By the way thanks for the help on this. So when I use trim to roof, the intersection point of the two roofs is the color of the cut fill. See attached.
I'm not sure what is going on. Basically have two cross gable roofs intersecting. Why is this so difficult?
Thanks
ArchiCAD 26 on 27" Mac