iterative remove, insert objects in different lists

Replies to This Discussion

Permalink Reply by djordje on December 29, 2012 at 2:31pm

Hi Yilmaz,

Yes, it is possible. You need a Hoopsnake component.

This is a concept, it may help you to understand what you need to do.
I did it as an inspiration of tonights Arsenal F.C. match:

A definition shows which one of the players will Arsène Wenger, get rid off first, based on their age.
In each iteration he will get rid of the three oldest players in team, and transfer them to another NN club (another list):

Right click on Hoopsnake (component grouped in green color) and choose "Step". By repeating this, you will increase the number of desired iterations (desired transfers).
To get back to the beginning and cancel all transfers, right click on Hoopsnake and choose "Reset all".

If this is the first time you are using the hoopsnake, consult their official pages:

http://yconst.com/computation/hoopsnake

http://www.grasshopper3d.com/group/hoopsnake

And download some of the Example files from here:

http://www.food4rhino.com/project/hoopsnake

Attachments:

• arsenal.gh, 6 KB

Permalink Reply by Yilmaz D. on December 29, 2012 at 2:59pm

thanks a lot. gonna try it

Permalink Reply by Yilmaz D. on December 29, 2012 at 5:29pm

Hi djordje,

finally I implemented Hoopsnake to my file. But the Auto-Loop-Function did not work. The Step-Function works fine, it is removing the predifened object. But Loop - no chance :(

Any suggestions why not?

Attachments:

• 20121229_Points on Surface.gh, 39 KB
• 20121227_Points on Surface.3dm, 28 KB

Permalink Reply by djordje on December 29, 2012 at 5:53pm

"Auto loop all" will not determine the list you want.
Instead of that, it will make as many iterations as possible until the input list is empty (every point is culled). Then it will restart itself from the beginning.

What exactly do you want to achieve? Or to be more precise, what is the lowest value of "List length" (far most right comonent in your definition) you are searching for? 0?

Permalink Reply by Yilmaz D. on December 29, 2012 at 5:58pm

what I want to do is actually remove objects in a list which do not match the given conditions. The removed objects should should be inserted to another list, where they can probably match the conditions, if not go to the other list.. and so on and so on

In the attached file the lower minimum of objects in the list should be 40, if 40 is reached than stop the iteration

Permalink Reply by djordje on December 29, 2012 at 6:07pm

Check the attached file.
When you open it, right click on "Hoopsnake" component and choose "Reset all" (you need to do this each time you open your .gh file). Then again right click and choose "Loop".

Basically your approach was correct, you just made a mistake when it comes to "smaller then" component. You needed "larger than" instead.

Attachments:

• 20121229_PointsonSurface.gh, 39 KB

Permalink Reply by Yilmaz D. on December 29, 2012 at 6:23pm

thanks!

Permalink Reply by Yilmaz D. on December 29, 2012 at 6:34pm

Hey djordje,

one little question left. :)

Is it possible to create multiple hoops? Each of them depending on the next one etc. etc. In fact i find two threads in this forum, both of them without an answer yet.

Permalink Reply by djordje on December 29, 2012 at 6:49pm

Sorry I did not try using multiple Hoopsnake components.
Maybe it's possible, maybe not, I do not know.

Permalink Reply by Manuel on December 30, 2012 at 9:42am

the oficial hoopsnake examples show how to do that.

Permalink Reply by Hannes Löschke on December 30, 2012 at 3:09pm

I see you're still stuck on loop logic. :)

To split the list into 40 items and have the rest in another list, there is a component doing exactly that. I see you reversed the list and culled from the front until 40 items are left. So I took the liberty to restore orginal ordering and split the list at item 40. Does exactly what your HS def does... just without HS. ;)

Attachments:

• 20121229_PointsonSurface_no_HS.gh, 37 KB