Geodesic dome

Hi all,

ok i don't know if my brain has gone into complete lockdown state or whats wrong with my, but i haven't got the faintest idea of how to create a geodesic dome in rhino and bring it into grasshopper or create it from scratch in grasshopper.

I need a sphere with points divided equally over its surface. Until now i've used a parametrization of the sphere but it just dawned on me that the points aren't equally distributed on the surface..

I'm leaning towards creating it in 3dsmax and exporting the vertices of it, and importing them in Grasshopper, but then i have no way of adjusting the number of points on the surface.

What to do? :)

Kind regards

Thomas

Replies to This Discussion

Permalink Reply by Arthur Mamou-Mani on October 28, 2010 at 3:08pm

Hi Hrvoje,
It might be too old.
Could you try this maybe on GH 0.7 ?
It works on my side.
Cheers.

Attachments:

101029_GeodesicIntersection.ghx, 538 KB

Permalink Reply by Hrvoje Petrovic on October 28, 2010 at 3:26pm

Hi Arthur,

This one loads fine into GH 0.8, probably works fine, too. I took a sphere and have tried to reduce the division points slider, but this made GH busy for ages (I have knocked Rhino down after five minutes). I will give it another try...

Cheers.

Permalink Reply by Arthur Mamou-Mani on October 28, 2010 at 3:32pm

Hi Hrvoje,

This definition is actualy not for spheres but for surfaces with trimmed and curved edges. It's quite specific ;) I used it for a gridshell which had such conditions. Here is how it looked:
http://www.grasshopper3d.com/photo/pmadome110-1/prev?context=user

If someone would like to adapt the idea to different conditions such as a different edge it'd be great ;)

cheers

Permalink Reply by Hrvoje Petrovic on October 28, 2010 at 4:12pm

Hi Arthur,

I thought it is something like that - sorry for misusing the definition. Now I have made a proper surface and it seems like it works. Thanks a lot for sharing it.

Cheers,

Hrvoje.

Permalink Reply by M K YIT on January 21, 2011 at 6:42am

Hi Arthur,

do you have the script for this ?

this is similar to what i like to do, to create a flexible structure...

cheers,

Agnes

Permalink Reply by Arthur Mamou-Mani on January 21, 2011 at 7:06am

Hi Agnes,

Not sure which one you are referring to but I try to share everything here: http://arthurmani.com/?p=171

Hope you are well,

Arthur

Permalink Reply by M K YIT on October 28, 2010 at 6:19pm

Thanks Arthur!
I'll see if it can be used for the sphere I needed,
get back to you if there's hiccups, cheerios.

Permalink Reply by Arthur Mamou-Mani on October 29, 2010 at 10:25am

Hi Angnes,
It won't work on a sphere as it needs a curved edge but also a surface which doesn't fold onto itself...
You might want to look into this new post:
http://www.grasshopper3d.com/profiles/blogs/geodesic-dome-1

Permalink Reply by M K YIT on January 21, 2011 at 6:41am

Hi Arthur,

do you have the script for this ?

cheers,

Agnes

Permalink Reply by Roland Wiebicke on January 20, 2011 at 8:51am