Excluding values from the list? How?

Replies to This Discussion

Permalink Reply by Michael Pryor on August 2, 2011 at 12:54pm

cull

Permalink Reply by djordje on August 2, 2011 at 1:12pm

thank you for the reply. I am still a Grasshopper beginner. Here is what I got from the "Cull" help:

 

As far as I understood this means I need to edit my Boolean value manager each time I change my list.

List that has 10 values in it, does not satisfies with the same "true, false" order as a list that has 9 values in it.

 

An example of a Cull Pattern operation. Input:

List = {A, B, C, D, E, F, G, H, I, J, K, L, M, N}
Pattern = {True, True, False, False}

Output:

List = {A, B, E, F, I, J, M, N}

 

So either I did not understand this "cull" component, or this is not a way to solve this problem.

I am looking for universal solution, that will allow me changing my input lists, but that will always result with excluding the first and last values from the list; or first two, and last two; or first three and last three... and so on.

 

Permalink Reply by Michael Pryor on August 2, 2011 at 1:54pm

sorry for the brief response, I am at work and saw your inquiry and wanted to give some hint of what to do in the few seconds I had. You are correct cull pattern is a Boolean operation. I meant to use cull index. Again it was a very brief suggestion "not thought out". Dimitri's suggestion seems accurate for more complex situations. Here is what I was talking about. Only good I think for the first and last of lists. 

Permalink Reply by Dimitri Nikitin on August 2, 2011 at 1:33pm

Hi Djordje,

is this what you're trying to do?

 

 

Dimitri

Permalink Reply by djordje on August 2, 2011 at 1:54pm

yes!

I just need the rest of the list, without the excluded values.

So I need the middle part of the list without the first and the last, or the first two and last two and so on.

 

P.S.

 

your components look different than the ones in my Grasshopper. Are you using the newest Grasshopper version or Rhino v5?

Permalink Reply by Michael Pryor on August 2, 2011 at 2:06pm

he is in the draw icons mode in grasshopper. View>Draw icons.

Permalink Reply by Dimitri Nikitin on August 2, 2011 at 2:11pm

here you go (see the attached file)

 

 

 

Dimitri

Attachments:

• extrudeVal.gh, 8 KB

Permalink Reply by Caglar on August 2, 2011 at 2:38pm

a bit simpler

 

Attachments:

• cull_first_last.gh, 3 KB

Permalink Reply by Yoann Mescam (Systemiq) on August 2, 2011 at 2:47pm

And even simpler :

(Shift List component)

Permalink Reply by Caglar on August 2, 2011 at 3:04pm

And even:

Just kidding :)

Permalink Reply by Michael Pryor on August 2, 2011 at 3:14pm

lol

Permalink Reply by Yoann Mescam (Systemiq) on August 2, 2011 at 4:47pm

Hehe

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