Grasshopper

algorithmic modeling for Rhino

Relative Item component breaking tree structure! Neighbors elements.

Hi!

I'm trying to find 8 neighbors point for every point in a ordered grid.

(every combo of "-1","0","+1" in {x}(x) drawing a line to {0}(0) ...)

But the Relative Item component break the original tree structure!

I would expect that if I set false to wrapping "Wp" and "Wi" the output could still keep the original  tree structure, but giving "nulls" or similar when the offset go out of existence.

How to "fix" this?

There are other ways to actually find neighbors in trees in grasshopper?

Views: 1850

Replies to This Discussion

Permalink Reply by Pieter Segeren on January 11, 2015 at 12:50pm

Hi Riccardo, if you hook up the A output of the RelItem component to the A input of the Line component (instead of the original points) you'll get your expected result.

Permalink Reply by Riccardo Majewski on January 11, 2015 at 1:04pm

Thanks for the tip, that's useful.

I just never watched "A" output lol...

But still i need "B" with the same structure as "P".

I'll try to reconstruct the paths in some way like P:X=A:B or so...

Thanks again.

Permalink Reply by Pieter Segeren on January 11, 2015 at 1:11pm

How? The number of items are different...

Permalink Reply by Riccardo Majewski on January 11, 2015 at 2:00pm

Yay! Done!

RelItem_FT (Full Tree) cluster to serve!

By starting to look at "A" it solved itself out :P

Thanks again!

Permalink Reply by Pieter Segeren on January 11, 2015 at 2:25pm

Very nice Riccardo, cudos for a succesful use of the ItemIndex component:) That's a tough one...


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