Position purlin on curve

[NDM]

Hi everybody.
Today i have a problem need help please
I want to adjust the purlin in the direction of the arc, how do I do that?
Thank all.

[martinsiegrist]

You’ll have to create planes which are perpendicular to the arc.

If you can’t figure out how to do this, go through the Modelab Primer

Then look at this example: Sweep many rails with profiles - #2 by HS_Kim

I found it with this search: Search results for ‘beams oriented’ - McNeel Forum

In case you are still stuck, please post your Rhino and Grasshopper files.

[NDM]

Thanks a lot. I will try

[Joseph_Oster]

@NDM

I want to adjust the purlin in the direction of the arc, how do I do that?

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[NDM]

PURLIN for arc check.gh (16.2 KB)
PURLIN FOR ARC.3dm (34.4 KB)
I tried but no result. Please help me, thank you so much.