We need help

Hi Guys

We are new to grasshopper and require some assistance. we are trying to create an organic shaped ceiling using Hexagon shapes of various sizes. This seems achievable using Grasshopper but we are struggling to grasp the program. Would anyone out there be available to help? We have a mesh model of the shape. Its going to be a ceiling. It just needs to become hexagons rather than smooth.

If anyone can help tomorrow please let me know. would be happy to negotiate a fee for this as we need it very urgently. Will also go into more detail and send the mesh we have

thanks

Nick

Replies to This Discussion

Permalink Reply by Daniel González Abalde on February 4, 2014 at 4:39pm

I do not understand what you need, maybe this will help.

http://www.grasshopper3d.com/forum/topics/hexagrid-on-surface-compo...

http://www.grasshopper3d.com/forum/topics/hex-grid-attractor-repuls...

Permalink Reply by nicholas papageorgiou on February 4, 2014 at 4:55pm

Hi Dani

Thanks for sending these links. This is very similar to what we need but the problem is the hexagons are conforming to the mesh and curve along with it or within its confines. We want the hexagons to keep their shape and the mesh almost becomes a guide as to where they are placed.

There may be for example three different sizes of hexagon. these shapes the distribute over the mesh so the end result is a hexagon faceted ceiling,,

Ive attached an image of a ceiling that reflects what we want but using hexagons and not triangles like in the image

Attachments:

ceiling-primed.jpg, 55 KB

Permalink Reply by Daniel González Abalde on February 4, 2014 at 5:41pm

If you do not want to use a component as Hexagrid on surf or hexagon cells of Launchbox, you have to in some way project the curves hexagons or the vertices of the auxiliary hexagons in your mesh and generate a new grid polygon with them. It will not be perfect but maybe you will serve ...

Another way would Hexagrid project centers on the mesh and use those points facet dome ..

http://www.grasshopper3d.com/forum/topics/planar-hexagonal-panel-on...

Permalink Reply by martyn hogg on February 5, 2014 at 7:59am

This subject has cropped up a few times on this forum.

One of the issues you have that you might not be aware of is that you do actually need to have different sized hexagons if you want to follow a surface that is not geodesic - i.e. approximating a spherical surface. (I think, but I might be wrong)

The image you posted is sections of a 3rd order geodesic dome. It is made up of triangles but you can see that those triangles are forming hexagons and pentagons. I might be wrong here, but I think if you only use one size of hexagon and one size of pentagon then you will only be able to make a surface that follows a sphere. In order to vary the curvature, you must use different sized hexagons and possibly hexagons that are stretched.

I am assuming that your aim is to manufacture several hexagonal panels but you want to keep the number of different panels to a minimum so you do not want to project a hexagonal pattern onto your surface.

I am not sure it is possible to do what you are trying to do, but if it is possible it is probably an advanced application of Grasshopper!

Can you approach this a different way... Can you start with a Geodesic Dome and fit it into your ceiling space?

Permalink Reply by nicholas papageorgiou on February 5, 2014 at 8:37am

These are the files that may help attached…

Basically I need a custom surface making in rhino to match the attached ( or as close as possible) , then a variable hexagon size and geometry faceted panelisation of the surface.

It looks like the GH recursive will help but don’t know how to mix them.

Attachments: