How read branch in VB code

Hi,
I'm start to study how manage trees in VB, it's my first timeand I have a couple of questions.
First I tried to read the tree, writing A = x, VB components give me the same list of the original tree
plus another start and ending values, 802 (reference image)
What is it this number? It's a sort of boundary of the tree?
Is it possible to delete?
Exist a sort of For loop to read one branchat time?
Which section of the new SDK can I read to find more information about tree managment?
I hope not to boring, sorry I'm a beginner.
Thanks in advance

Paolo

Attachments:

1.jpg, 78 KB

Replies to This Discussion

Permalink Reply by Paolo Cappelletto on July 19, 2010 at 4:19am

Another thing...
802 sometimes change, but I don't why, maybe if I insert come new components... now is 693.
But if I try to flatten the tree before to enter in the vb component, It's still reading this number...

Attachments:

2.jpg, 84 KB

Permalink Reply by Giulio Piacentino on July 19, 2010 at 10:46am

Potresti condividere un piccolo esempio dove mostri il contenuto dello script?
Così sarà più facile essere d'aiuto...

--

Could you please post a small example where you show the content of the script?
It will then be easier to help you...

- Giulio
___________________
giulio@mcneel.com
McNeel Europe, Barcelona

Permalink Reply by Paolo Cappelletto on July 20, 2010 at 12:36am

Giulio, you're right, Voilà!
I don't understand why if I change Connectivity from ITEM to LIST, A and B gave me Null as result...
All I want to do is draw some line using the connectivity diagram of the mesh face.
I think to proceed in this way:
- build an array with points
- call the point from ponts array with a For loop and draw the line.
But before I want to understand some basic things about ITEM-LIST-TREE management

Thanks (grazie)

P

Attachments:

delaunay_decoration.3dm, 32 KB
delaunay_decoration_01.ghx, 145 KB

Permalink Reply by Giulio Piacentino on July 21, 2010 at 11:30am

Hi Paolo,

please have a look at the comments in the file. Btw, now you can use the latest version of Grasshopper and access the "Face Vertices" component. This will spare all the string conversions, and therefore the null items.

- Giulio

Attachments:

delaunay_decoration_02.ghx, 210 KB

Permalink Reply by Paolo Cappelletto on July 22, 2010 at 12:44am

Thanks Giulio, for your kindness, very useful.
The attached file is my last version, and it seems to be work, but there is a problem, probably
lies in the inner logic of Delaunay Triangolation.
I draw the line, but I want to use the face vertices to draw a closed tringle for every face.
I thought that each triplet of points rapresented a single closed face.
It seems to me that the order of face vertices follow another rule.
I found this, maybe I will check today

http://www.grasshopper3d.com/forum/topics/the-inner-workings-of-del...

P

Attachments:

delaunay_decoration_01.ghx, 91 KB

Permalink Reply by Paolo Cappelletto on July 22, 2010 at 5:45am

No, totally wrong, I had checked my last definition and there is something wrong in the loop...
I guess...

Permalink Reply by Paolo Cappelletto on July 22, 2010 at 6:10am

Correction
Yes. Decoration_01 It Works !!!perfectly, I did a bit of confusion with the display mode
The code style is orrible but for now is good, But I still have some question for the forum.
New Discussion.
Bye

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