Can't loft into an untrimmed surface

[stijnvanaardenne (stienfromarden)]

He guys, I am trying to draw a vase shape in gh, and i want it to have this triangle shape thing to pour from. I need this shape to be a untrimmed surface but I can’t get this to work. I tried different way but no succes; convert to periodic planar curve, to interpolate curve, brep deconstruct and merg mesh but still no one single untrimmed surface, anybody here that could help?

See file;

Y NO SURFACE?.gh (16.9 KB)

[diff-arch]

You need to rebuild the circles as n.u.r.b.s. curves for it to work!

Y NO SURFACE rev.gh (22.8 KB)

[kaligula46]

Y NO SURFACE _2.gh (13.4 KB)

[stijnvanaardenne (stienfromarden)]

Great, this helps so much! Thanks a lot!

[Birk_Binnard]

Here’s a simple way to modify the top circle to form the spout:

Y NO SURFACE-bb1.gh (25.1 KB)

When I make vase shapes for 3D printing I use only a single base curve and then use 2 GenePools to control scaling and height for the final Loft operation.