List Item

Hi everyone,
I am trying to extract points from a surface inorder to make lines like the image.

But when I try this with list items, I am able to get the desired points but dont know how to get seperate lines. Somehow the horizontal ones seem to work fine! Please help!

Many Thanks

Replies to This Discussion

Permalink Reply by Francisco Lara on January 23, 2010 at 6:47am

THIS VIDEO TUTORIAL WILL HELP
http://www.digitaltoolbox.info/grasshopper/list_item.html

Permalink Reply by francesco bagni on January 23, 2010 at 8:06am

hi, i suggest also to have the 'draw fancy lines' mode ON when you try to solve this problem, i think it would help in finding the right direction for the solution. at least it did when i was trying to solve a similar problem..

Permalink Reply by Francisco Lara on January 23, 2010 at 8:23am

draw fancy lines? what is that?

Permalink Reply by francesco bagni on January 23, 2010 at 8:42am

'draw fancy wires', sorry in the View menu

Permalink Reply by Francisco Lara on January 24, 2010 at 8:56am

hey I just realized that!! could you please tell me what is this option for?

I realized some of the wires got thinker but I dont understand the use of this
I would be thankfull if you could explain it a little
thanks
take care

Permalink Reply by David Rutten on January 24, 2010 at 9:05am

Fancy Wires will draw 4 kinds of wires instead of the default single stroke.

1) Orange wires: No data is flowing from left to right.
2) Single stroke: A single piece of data is flowing from left to right.
3) Double stroke: A list of data is flowing from left to right.
4) Dashed stroke: A hierarchical data structure is flowing from left to right.

--
David Rutten
david@mcneel.com
Poprad, Slovakia

Permalink Reply by Francisco Lara on January 24, 2010 at 9:07am

Thank U !

Permalink Reply by Deepthi on January 24, 2010 at 10:51am

Ah I saw 2more replies to this post and got excited expecting an answer to my problem! But it is still about the fancy wires??? C'mon!
[Hehe sorry!]

Permalink Reply by Francisco Lara on January 24, 2010 at 4:24pm

heeeeey! but with that video tutorial you should be able
to do what you want
C'mon!
[Haha sorry!]

Permalink Reply by francesco bagni on January 24, 2010 at 6:37pm

here's a very partial solution that i made when trying to solve a similar problem. it works only with certain surface division factors but it might give you some hint
bye

Attachments:

evennumbers.ghx, 427 KB

Permalink Reply by Nick Bruscia on January 24, 2010 at 10:15pm

here you go.
It's based off of the video tutorial posted above. watch it and use this as a reference if you'd like ...

Attachments:

list item.ghx, 303 KB

Permalink Reply by francesco bagni on January 25, 2010 at 2:37am

i forgot to tell that of course you should generalize the numbers that now are defined with the sliders, and relate them with the u,v subdivisions number, and with the subdivisions list's lenght...