How to make Lamellas with differentiated height between two curves?

Hello friends!

I have an issue with my model, where I try to make lamellas on a facade. I have made this simplified model, to start of with.

I want the lamellas to start at a point on a curve (roof), follow the z-axiz down, to the same xy-point but on a curve further down.

It seems I cant get it to work, and would love some pointers on what I’m doing wrong??

210115_Lameller_System_HELP.gh (13.6 KB)

What are 'lamellas"?

The PLine (Polyline) component is orange because some of the points don’t intersect a curve when projected down.


Lameller_System_2021Jan15a.gh (8.4 KB)


210115_Lameller_System_HELP_re.gh (11.7 KB)

That’s amazing, thank you all.

Though for some reason, I have more points than segments, (probably due to some double points I can’t get rid of in my messy attempt of a gradient rhythm) so all the lamellas are shifted a bit.

Is there an easy fix to get rid of those double points? Or perhaps to get the “Parameter” for the “Horizontal Frame” some other way? I know, the latter doesn’t fix the problem, but perhaps its to live with for now…


210115_Lameller_System_HELP2.gh (44.7 KB)


210115_Lameller_System_HELP2_re.gh (47.7 KB)

Thank you @HS_Kim, and @Joseph_Oster.

Works like a charm!

Best regards/ Dennis