Selecting items 1 2 3, 3 4 5, 5 6 7, and so on on a list

[joacodl (J)]

hi,

I have a list of points and I want to create lines between groups of 3 points, but I want the first point of the new curve to be the same point where the last one ended.

so the first curve would connect item 1 + item 2 + item 3, and second curve would connect item 3 + item 4 + item 5 and so on.

can’t find a way of doing it, even if manually…

thx

[martinsiegrist]

You can create a polyline first with all points, explode and create a partition list with two items each. Then join and extract the control points.

[Joseph_Oster]

sublist_2021_Jul15a.gh (18.9 KB)

Triangle surfaces:

[joacodl (J)]

thanks! worked great

[joacodl (J)]

thanks!!