Grasshopper

algorithmic modeling for Rhino

Iterating through list in a branch

Hello all,

I'm just getting started with using python in Grasshopper. What I'm trying to do is itarating through a list of 3dPoints. These points are devided onto four branches. Each branch has 5 points. I want to shift the points per branch. The amount of places the points should be shifted is linked to the branch they are on. So the 0'th branch shouldn't shift, the 1'th branch should shift one, the 2'nd branch should shift two, etc..

I solved my problem by using three GH components. But I would like to combine these in one python component. The script I expected to do the job is attached. But the outcome of the script has only the last of the branches that is shifted. Is this because with .branch(i) you only can call one branch? 

Any thoughts on how i can iterate through these branches?

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Permalink Reply by 筑梦NARUTO on June 16, 2015 at 5:46am

Hi Steven
You should ues the Datatree,Check the attached file

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Permalink Reply by Steven Thuis on June 16, 2015 at 5:58am

Thanks Naruto! I'm starting to understand how Datatrees are used in Python:)

Permalink Reply by Mac Gros on June 16, 2015 at 4:03pm

If i may add, you can type GrasshopperGetSDKDocumentation in Rhino to get the GH Reference ( GH DataTree detailed ).

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