Triangular and hexagonal grids

[Delara_Rz]

Hi all, I want to make a hexagonal panels as a kinetic facade on a curve surface, in such a way that half hexagonal panels would rotate on the triangular axis (I add photos for better understanding). I can do it for just one triangular panel, could you please help me?

@Mahdiyar

[Rh-3d-p (R-d)]

Mybe you must (graft + PartitionList Input) for each item to rotate (betters to people help you if send *.gh )

[Delara_Rz]

Thanks for replying but that doesn’t works

[tay.othman (tay.0)]

As @Rh-3d-p said. Sharing your grasshopper definition can help us helping you

[Mahdiyar]

Delara.gh (15.5 KB)

[bbalbastre]

Hi everyone,

Is there a way of doing the inverse process, convert a mesh made by hexagons and triangles (picture shown by @Mahdiyar) into a mesh made only by triangles?

Sometimes I received and input like this and I was struggiling how to do that!

Regards

[Delara_Rz]

Thanks a lot dear Mahdiyar, I’ve tried this one with Weaverbird’s component, just unfortunately it divides the hexagon into 6 parts, what I want is dividing the hexagon into 2 parts (one part in one triangle and the other in next triangle), is there a way to do such model?

[Mahdiyar]

@Delara_Rz

what I want is dividing the hexagon into 2 parts

I’m not sure if I understand what you are trying to do. I try to mimic what you were showing in this screenshot:

Delara.gh (12.1 KB)

[Delara_Rz]

I want this one, but in here I’ve just copied the first triangle, I could not manage it in a triangular grids

[Delara_Rz]

[DanielPiker]

As the pattern is the same in alternating triangles, you could use Checkerboard to assign them like this:
hex_tri_quad.gh (17.0 KB)

[anon39580149]

You can use half hexagon and transformations.

hexagons_.gh (16.2 KB)

[Delara_Rz]

thanks a lot Daniel, it seems it works on a curved surface, just when I rotate them the whole hexagon rotates, I tried dispatch but in that case they don’t rotate on the triangle axis’s

[Delara_Rz]

thanks a lottt

[DanielPiker]

The direction of rotation depends on the direction of the edge.
Because that definition generates the 2 types of panel by reversing the direction of the triangle, the panel opening angle for these also needs to be reversed.
The definition I posted above already takes that into account though.

Does the input mesh you are using have consistent normals?
You may just need to pass your mesh through UnifyNormals first.
hex_tri_quad2.gh (17.0 KB)

[Delara_Rz]

Dear Daniel could you please check my file? I can’t unify the normal vectors of panels and because of that the rotation part is not true
hexagonal panels.gh (24.8 KB)

[Delara_Rz]

I can’t unify mesh normals in just one direction, I want to use an attractor