Pipe but with Triangle

Hi guys,

I need some help please; I have a triangle which i want to use for follow me in Grasshopper and i want this to be done along the arch which i have created (Please see attached script).

The issue is that the triangle is currently flat on the xy axis and it also does not align with the arch.

image
image
Follow me.gh (6.9 KB)

Hello,

You put the start point in the Plane input of the Polygon component, which requires a plane. Grasshopper therefore makes a conversion, and uses XY plane with the origin at the start point, which is why the triangle is flat.
You need to use Perp Frame. This component requires a parameter, so you can either use Curve Closest Point to calculate that, or reparameterize your curve and use 0 as the start parameter.

Then a Sweep1 works fo define your arch surface.

Follow me.gh (15.3 KB)

Thanks a lot, you are life saver!!!