Split order points for panels?

Hello, I did split my surface with a series of curves to get panels When I tried to get surface from points o got this irregularity.
How can I Fix it? or what could be the correct way to get the panels?

split reorder.gh (13.0 KB)

Here’s one way, though some are flipped. Not sure why?

split_reorder_2019Nov15a.gh (19.3 KB)

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it works thanks man

Here’s a different approach that ignores your surface and uses only the curves. I can see variations of this…

split_reorder_2019Nov15b.gh (12.9 KB)

nice in this case all normals is ok very good ! but in the other solution what is the way to flip planes “y” direction to apply the same logic and get all faces normal ok?

Plane Normal? (not at computer)

split reorder_re.gh (16.8 KB)

in R5 not working but cool solution for r6

@HS_Kim’s solution works fine in R5. You forgot to enable ‘Reparameterize’ on the ‘S’ input of EvalSrf.

What I don’t like about the way you’ve presented this problem, though, is that the surface and curves are redundant instead of deriving the curves from the surface parametrically.

Here is a more correct version using only the curves. It won’t make any difference if the horizontal curves are straight lines, as they appear to be. But if they are curves, this version below will implement the polyline results you expect, whereas yesterday’s version won’t.

split_reorder_2019Nov16a.gh (17.5 KB)

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good, love how many ways exist for a solution, thank you guys.