Curve.ByParameterLineOnSurface being weird

Hello,

I wanted to create multiple curves on a surface using Curve.ByParamterLineOnSurface as shown on the left side of the picture, but dynamo won’t let me do it, even though it’s the exact same node setup (as you can see on the right side of the picture). The Curve.ByParameterLineOnSurface should create 5 Curves like on the left side of the picture, but it only creates 1 Curve, like you can see on the right side of the picture.

What am I doing wrong? Thanks!

Edit: I found the problem, the NurbsCurve.ByPoints used a List that was in a List and that’s why it didn’t work. (I had created a list with the controll points but put that list in another list so that was the problem)

@PandaTimmy ,

i think your values regarding CurveAtParameter(UV) should be inbetween 0…1.
you can also use a slider to see your results in realtime…

Thanks for your alternative solution @Draxl_Andreas , but I found the bug that was causing the problem so now the bug is gone :grinning: