Separate random values for each path

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Permalink Reply by brian on July 8, 2010 at 12:57pm

You need to generate a different seed for each group. Right now you are asking every path to be assessed at the same random seed level. If you create a series of seeds with the same number in the series as the number of paths, and then plug this into the 'seed' value you will get what your looking for.

Permalink Reply by Charles Aweida on July 8, 2010 at 1:00pm

Im not sure if I get what your saying, is it possible to post a definition?

Permalink Reply by taz on July 8, 2010 at 3:39pm

[Random] generates pseudo random numbers, meaning for a given seed value you will always get the same random distribution.

From your screenshot you are using a seed of 12. If you want to have a different random distribution for each branch you would need a different seed for each branch.

From your earlier post, it looks like you're trying to randomly remove points so a combination of [Jitter] and [Random Reduce] may work for you.

Permalink Reply by taz on July 8, 2010 at 3:51pm

Note also that depending on what version of GH you're using [Random Reduce] may always include the last value of a list. See this discussion:

http://www.grasshopper3d.com/forum/topics/random-component-1

Permalink Reply by Charles Aweida on July 12, 2010 at 5:19pm

Thanks for the post Taz, I think the random reduce with jitter is a great way to achieve a random number list which I will probably end up using but I want to figure it out with the random generator as well for the sake of learning. If you can take a look at my file that would be great.

Untitled-1 copy.jpg

I cant figure out how to get a random list that is exactly the same if not very close in structure to my list of points. Thanks allot for the help.

Attachments:

• data.3dm, 85 KB
• data.ghx, 1.4 MB