Point order from rotation angle


I am sorry for asking, but I am having trouble with ordering joined lines. The problem is that whenever I change the rotation angle, the order of the lines changes (like in picture 1). I would like the order to be like when the slider is in 50 (like in picture 2), without having to input a slider.
Looking foward for a response!
Thank youQ20191216.gh (10.9 KB)

Check purple group. Flattening before Join Curveswill mess the order of curves.

Q20191216_re.gh (9.7 KB)


Q20191216_2019Dec16a.gh (10.8 KB)

Hidden wires are counter-productive in a model this small.

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