Form finding double curved shell with kangaroo

Grasshopper Kangaroo
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1

Hey there,
I want to create a double curved shell (e.g. like the Trabeculae Pavilion) with kangaroo.

Trabeculae_Pavilion
Trabeculae_Pavilion474Ɨ315 37.8 KB

I found a way by generating the outer arches with kangaroo and rotated those outwards. Then I located the highest points there and generated a hanging line again with kangaroo inbetween.
I then finally created the shell by using Sweep2, adding two rails (between the bottom points of the arches) as sections.

Now I want to find a better way to model the same shape by creating a mesh surface.
I tried to add a definition (blue box) to show what Iā€™m trying to do but achiving said shape.

I hope the grasshopper file is clear enough.
Thank you!
Gesa

Trabeculae_Pavilion.gh (61.3 KB)

2

Trabeculae_Pavilion Edited v0.gh (68.8 KB)

image
image2356Ɨ531 111 KB

2 Likes
3

Trabeculae_Pavilion Edited v1.gh (76.1 KB)

V1

image
image2211Ɨ498 80.7 KB

1 Like
4

Thank you!
What changes do I need to make if I want to make it asymmetrical? Like in the scribble here:

image
image524Ɨ327 45.5 KB

Kind regards,
Gesa

5

You can generate the side using curve or catenary ā€¦ then make network surface, then quadremesh this then Kangaroo from Quan Li.

image
image1104Ɨ774 176 KB

Trabeculae_Pavilion LD.gh (22.6 KB)

1 Like
6

I assume you will need the aligned grid for morphing, and have more contol over the borders,so just because of fun: The surface from the original post seems like it could be a cut piece, of an Enneper Surface, which is a minimal surface, mathematically described by Alfred Enneper in 1864.
You can model it with the knwon equation like this:

grafik
grafik3666Ɨ1110 484 KB

enneper.gh (20.7 KB)

1 Like