How to divide a list of data into list with equal number of datas

Hi Everyone,

here is the Problem:
I have a 3D space filled with random points (amount variable; divisible by 5).
Now I would like to use all the points to create interpolated curves using each 5 points.

How do I divide the whole list of points into sub lists, with each 5 randomly picked points?
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sorry, I´m kind of new to Grasshopper, so it might also be useful to get a hint on other research sources. Thanks a lot!

Flo

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Permalink Reply by Danny Boyes on August 1, 2010 at 12:32pm

Sorry I haven't got enough time to go into more detail at the moment but to get you started have a look at this discussion thread http://www.grasshopper3d.com/forum/topics/simplify-this?commentId=2... which has some examples of dividing lists up using the path mapper. To get the randomness you could send the list through the jitter component.

Permalink Reply by Danny Boyes on August 1, 2010 at 4:26pm

Now I have the time I can elaborate. The Jitter component will randomize your list and you can control the amount by the J input the value 1 will give you a complete shuffle. Then the Path Mapper will allow you to split the lists by dividing by you intended value.

I use two different operators in the Path Mapper Component when splitting lists. Integer or Backslash Divide '\' gives you the desired number in each list where as the Modulo Operator '%' gives you the desired number of lists. In your case you want to have the first 5 items in branch 0 a next 5 in branch 1 etc. I would use '\' for this eg. {A;B;C}(i) --> {i\5} where A,B,C are place holders and i is the Number in the list. See below for example:

If you wanted to have 5 lists with the first of five going in the first branch and the second going in the second branch etc. I would have used % instead as seen in the previous thread

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