about data tree selection

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Permalink Reply by sylvester on December 27, 2013 at 12:47am

isn't your example wrong as you would pass from a 100 items tree to a 300 items tree?

anyways I think that a Flatten followed by a Path Mapper might be all you need.

p.s. I am not an expert

Permalink Reply by Junfeng Wang on December 27, 2013 at 1:24pm

Hi Sergio,

actually I want to extract three consecutive items from each branch to construct a geometry. I can flatten it or even select a single branch and do it branch by branch, but if there is hundreds of branches, I think it will be really tiresome to do that. So I am looking for a definition that can do this to all the branches at the same time.

Permalink Reply by Danny Boyes on December 27, 2013 at 1:37am

I cannot post an example until monday next week but what you need is:

[series] c=number of branches

[shift list] s=series output

[list item] zui expose i+1 & +2 gibing you the first 3 items

[merbe list]

Alternatively you can use [sub list] with a domain 0 to 2

Alterantively you can use a [split list] s=3 

Permalink Reply by Junfeng Wang on December 27, 2013 at 1:25pm

Hi Danny, thanks for the answer, but i'm still a bit confused...can you later post an example to show that? Many thanks!

Permalink Reply by Grasshopper3dvn on December 28, 2013 at 3:45am

Hi Junfeng Wang!

Attachments:

• Data Tree Selection.gh, 98 KB

Permalink Reply by Junfeng Wang on December 28, 2013 at 5:31pm

That works perfect! Thanks a lot