Random Quad panels order (Lunch box_Random quad panels)

sungbok.song · November 26, 2021, 9:58am

Hi

I made random panel on the curved surface by using Random quad panels (Lunchbox).
My goal was to make the order of panel as shown below image.

In the sorting part, I refered HS_Kim’s script:

I am guessing that the data management of Partition list part is wrong but I couldn’t solve this issue.

Here is my script:
Random Quad Panel.gh (20.0 KB)

Could anyone give advise for this issue?
Thanks in advance.

Wiley · November 26, 2021, 11:48am

i would do it like this:

extract the rightmost edge
for each randomised quad, find its centroid and the distance to the rightmost edge
sort all panels in the list (maintain tree structure) using the distance as a key.

If it’s not clear, share your script file so i can show you.

sungbok.song · November 26, 2021, 12:32pm

Hi Wiley.

Oh. I forgot to upload my script.
I added my script to my initial post.
I did as your advice but I couldn’t solve it.

HS_Kim · November 26, 2021, 12:43pm

Random Quad Panel_re.gh (19.1 KB)

Wiley · November 26, 2021, 12:55pm

You made it too complicated. See the attached GH file.

There are a couple misconceptions about the tree structure in grasshopper after opening your script.

You don’t need to duplicate data here. if a single item and a list is put together in a cell function, the single item will be parsed every time automatically for each item in the list. same goes for tree. Because the item is a constant parameter.

just use the flatten in the script.

I almost never use the tree statistic and for a beginner I don’t recommend using it. Try to understand the tree structure instead.

Good luck scripting!
Random Quad Panel.gh (16.7 KB)

sungbok.song · November 26, 2021, 1:25pm

Hi Wiley,

I appreciate your help but The order of panel is not what I want.
Did I miss something?

sungbok.song · November 26, 2021, 1:36pm

Hi HS_Kim,

Thanks a lot.
It works very well. I will try to understand the logic of Create set and Member Index part.

Wiley · November 26, 2021, 1:39pm

I am sorry. I didn’t realize the squads are not arranged into trees according to their Z values.
Random Quad Panel.gh (20.7 KB)

sungbok.song · November 26, 2021, 1:48pm

Hi Wiley.

Thanks for your updating.
Yes it is working.
I am going to study your script.