Endpoint of a circle

Hi, is it possible to change an endpoint of a circle? I had a problem in a file below, I think it would be easier to show it on the photo, I was making seats like these below and I can’t fix one of these to be like two others (I can’t describe it clearly, but I think it’s visible on photos

seats.gh (11.4 KB)

Are you looking for horizontalFrames compontn?

Seats.gh (10.5 KB)

Maybe I use it in a wrong way, but it still doesn’t work, maybe now the only problem is that I can’t change points’ orderseats 2.gh (11.7 KB)

seats 2_re.gh (17.4 KB) Check red group.

Seam (white group) is the direct answer to your question about moving the endpoints of circle (or any closed curve). though there are so many different ways to accomplish your goal here it’s hard to know where to begin.

seats_2020May12a.gh (23.1 KB)

thanks a lot, now it’s working :smiley: