I have these 3 shapes and want them to exrude along two curves at the same time.
Those curves are not parallel, that is why I thought sweep2 would be the best here.
But all I see is a strang shape here.
To compare in the below group I did an extrude along one line. It looks almost fine, but is not exactly what I need. But gives an idea on how it should look at the end.
If sweep2 is impossible, maybe some workaround?
Is this the expected result?
It appears to work if the rails don’t go below the rail.
sweep2ornot_trimmed-rails.gh (7.9 KB)
I hope I understand. I could reproduce it mostly: 
You cut the rail -curves to same level as the shape.
And used graft to get them in the same groups (In my original this was not needed).
OK, thank you, I can work with this (you did it again 
)
Knowing this, I will draw the shapes at start and end of the rail-curves (equal length)
and sweep2, that would give me 3 breps.
Regards, Eef
I grafted because I selected the lines in Rhino and it was a flat list.
Maybe you internalised the lines from an upstream component?
yep, it is just a tiny part of a big project.
