So, I'm trying to populate a surface with apertures based on the
surface UV curves.

here's a quick "manual" example:
http://farm4.static.flickr.com/3497/3292633785_d327ccf8e1.jpg

So, what i've done is extracted 3 isocurves from the surface, turned
on the control points and drawn new curves through the points.... in
this case, 3 point on the middle curve, 1 on the next curve over, 3 on
the middle curve... etc etc.

so i've got a grasshopper def started, it takes two curves, lofts
between them, and arrays a grid of UV points on this surface.

the first thing i need to do is separate those points into just the V
curves.... which i've done by splitting the list (over and over
again.... a loop funtion would be nice, but i'm not sure how to do
this). It's not clean, but it works and i now have a data stream for
every V curve of the surface...

so, like in the image above, i have three curves, and i want to draw 2
new curves based on their control points...

existing curves:
curve1point1            curve2point1            curve3point1
curve1point2            curve2point2            curve3point2
curve1point3            curve2point3            curve3point3
curve1point4            curve2point4            curve3point4
curve1point5            curve2point5            curve3point5
curve1point6            curve2point6            curve3point6
curve1point7            curve2point7            curve3point7
curve1point8            curve2point8            curve3point8
curve1point9            curve2point9            curve3point9
curve1point10           curve2point10           curve3point10
curve1point11           curve2point11           curve3point11
curve1point12           curve2point12           curve3point12
curve1point13           curve2point13           curve3point13
curve1point14           curve2point14           curve3point14

and i want the new curves to be drawn like this:
curve2point1            curve2point1
curve2point2            curve2point2
curve2point3            curve2point3
curve1point4            curve3point4
curve2point5            curve2point5
curve2point6            curve2point6
curve2point7            curve2point7
curve1point8            curve3point8
curve2point9            curve2point9
curve2point10           curve2point10
curve2point11           curve2point11
curve1point12           curve3point12
curve2point13           curve2point13
curve2point14           curve2point14

so it should be pretty easy i think, but i might need a script module
and i dont know how to do that.... it's simply a matter of replacing
every Nth item in one array with every Nth item in another array....

what's the best way to handle this?



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