Wavy facade tutorial

good evening,

from time to time I find myself following a video tutorial for grasshopper, like this one here:

wavy facade

as always there is something I dont understand. In this case I dont get it why my curves are horizontal and in the video the curves are top down. I tried to mess around with set / list components, but it didnt work out.

best
Benjamin

wavy-facade.3dm (1.2 MB)
gh-pd-wavy-facade-00.gh (15.6 KB)

I had a reply but you deleted your thread on this subject within 11 minutes of creating it. Too bad,

yeah, i had another problem , but solved it myself.

thx