Random surfaces

Hello!

i'm student in architecture from Toulouse, france. I'm working on Grasshopper since one year.

I'm working on
an important architecture competition, and I try create an algorithm to design the building elevations.

Thanks Grasshopper, I divide my elevation into different parts like in the picture. (I used Fibonnaci algorithm). And now, I have many surfaces, with different size that compose my elevation.

The next step consist in make a random

script to determine a color for each panels (I would like use 4 different colors). it's a little bit difficult for me, and i tested many algorithms, without success. The random script could be generated by a mathematic graph, or, the best, by a image sampler. In the picture, I put texture on the surface by hand in Rhino, but it's the result I would like achieve.

So, I hope someone could help me to find a solution.

Thank you so much !

Replies to This Discussion

Permalink Reply by David Rutten on July 3, 2014 at 12:00pm

So each panel 'inherits' its colour from an image? To do it directly from an image, you can take this approach:

David Rutten

david@mcneel.com

Attachments:

facade.gh, 17 KB

Permalink Reply by mathieu Sudres on July 3, 2014 at 1:18pm

Thank you so much for your help David ! the result is amazing ! I will try to adapt tomorrow the script for keep the width of my panels like in the picture. But how can i maintain just 4 colors based on the image sampler ?

thanks !

Permalink Reply by David Rutten on July 3, 2014 at 1:23pm

The best way is probably to either pre-process the image using a pixel-editor (Photo-shop, Paint.NET, Paint Shop Pro, etc. etc.).

If the posterizing effect is something you want control over from within Grasshopper, then you can create a palette of 4 colours and then use the [Find Similar Member] component: