Populate a surface with 2 or more different objects (randomly)

Hey everyone,

I've been learning grasshopper for the past month now and am currently trying to make a grasshopper script that will do the following: I am trying to make a facade which has v shaped panels sticking out of the facade either facing up or facing down, in a random order. Basically, I know how to populate an object on a surface and give it say, a random thickness for each panel, but what I have not figured out how to do is how to make a surface, divide the surface, and then have all of the sub surfaces that have been created either contain a v shaped panel that faces up or faces down (in a random sequence)

Hopefully my explanation is clear... could someone point me in the direction of perhaps a tutorial on how to do this, or maybe a similar post to this request?

Thanks. Mat

Replies to This Discussion

Permalink Reply by Danny Boyes on May 31, 2011 at 9:55am

You need to create a random pattern of ones and zeros and then use something like the Weave component to create your source of geometry to place on the surfaces.

Attachments:

RandomPopulate.ghx, 544 KB

Permalink Reply by mwarch on May 31, 2011 at 2:48pm

Hey Danny, that's great thanks!

I am wondering though, if it's perhaps possible to have more then 2 variables (currently up and down). Since the surface division is defined by 1's and 0's does that mean there can only be two different types of panels? How would I go about changing the script to allow for, let's say, 4 or 5 different panel types.

Also, is it possible to (while still keeping the randomized placement) allow for an inequal amount of the different types of panels? Let's say I have panel A, B, C, and D and I want panels A to populate 1/2 of the surface divisions, B to populate 1/4, C to populate 1/8, and D to populate 1/8. How could something like this be done?

Thanks!

Permalink Reply by Danny Boyes on May 31, 2011 at 4:46pm

Same principle really.

You just need to use a graph mapper to distort the distribution of the random numbers (domain of graph mapper Y is 0 to 3 ie A to D)

The weave component has an input manager on the context menu that allows you to add variables.

Attachments:

RandomPopulate_mkII.ghx, 622 KB

Permalink Reply by Paulo Carvalho on July 2, 2012 at 9:31pm

Danny,
I have a problem,
How can I extract the result of the distribution of panels "c", for example?
After oriented to separate into different layer.

Thanks!

Permalink Reply by Alexandre Lapierre on January 15, 2018 at 1:38am