How to extrude a section along two curves

avungyerd · ‎2024-09-09

Is it possible for Archicad to model a cross-sectional profile that follows a curve with two different curvatures, as shown in the image?

If so, please let me know how to do it.

Operating system used: Windows 5030

runxel · ‎2024-09-09

There is no easy way of doing that in Archicad. There is nothing comparable to the " Sweep2" command of Rhino.

With beams you can try the tapered method, but that does only work with straight segments.

However if you are proficient in GDL you could try to give it a shot. It still won't be easy tho, my best guess would be to make tiny segments with RuledSegmented where you'd need to calculate the profile node positions by hand, or maybe you can even get away with using TubeA, depending on your profile.

But none of this is trivial. I suggest to just use Rhino and bring in the Nurbs to Archicad. That works generally quite well.

Lucas Becker | AC 29 on Mac (Sequoia) | Graphisoft Insider Panelist | Akroter.io – high-end GDL objects | Author of Runxel's Archicad Wiki | Editor at SelfGDL | Developer of the GDL plugin for Sublime Text

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runxel · ‎2024-09-09

There is no easy way of doing that in Archicad. There is nothing comparable to the " Sweep2" command of Rhino.

With beams you can try the tapered method, but that does only work with straight segments.

However if you are proficient in GDL you could try to give it a shot. It still won't be easy tho, my best guess would be to make tiny segments with RuledSegmented where you'd need to calculate the profile node positions by hand, or maybe you can even get away with using TubeA, depending on your profile.

But none of this is trivial. I suggest to just use Rhino and bring in the Nurbs to Archicad. That works generally quite well.

Lucas Becker | AC 29 on Mac (Sequoia) | Graphisoft Insider Panelist | Akroter.io – high-end GDL objects | Author of Runxel's Archicad Wiki | Editor at SelfGDL | Developer of the GDL plugin for Sublime Text

My List of AC shortcomings & bugs | I Will Piledrive You If You Mention AI Again |

POSIWID – The Purpose Of a System Is What It Does /// «Furthermore, I consider that Carth... yearly releases must be destroyed»

Lingwisyer · ‎2024-09-10

ArchiCAD does not like splines...

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avungyerd · ‎2024-09-10

Thanks for your reply, I decided to import the modeling in Rhinoceros.

How to extrude a section along two curves

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