my first recursion help!!

Replies to This Discussion

Permalink Reply by Massimiliano Trave on October 20, 2011 at 7:23am

I managed to write a first approach to the algorithm seems to work but can only in replace esisting mode, I would like to decide the number of iterations (formerly 7) and in particular to maintain the results of previous iterations. Can someone help me understand how to do that?
Thanks

Permalink Reply by Massimiliano Trave on October 20, 2011 at 7:25am

this is my new file.

Attachments:

• hoopsnake test2.3dm, 49 KB
• hoopsnake test 2.ghx, 125 KB

Permalink Reply by Yannis on October 26, 2011 at 4:08am

Here's one that kind of works...path mapper is still need though. Actually, I would like (with your permission and credit of course) to include this example in the ones included with HoopSnake. Let me know:)

 

Yiannis

 

 

Attachments:

• hoopsnaketest2.ghx, 108 KB

Permalink Reply by Massimiliano Trave on October 26, 2011 at 10:30am

There is no problem, I'm happy to give my contribution:). I have some questions for you. I don't understand how pathmapper works in this case (since it consists of two row), and second I would like to understand how hoopsnake manages lists of data:
Why hoopsnake needed  branch-{0} in "D" imput?

And-if I can fill in the "S" imput  lists with more branches?
Thanks Yiannis for your reply and for your great component.

Attachments:

• hoopsnake.PNG, 243 KB

Permalink Reply by Massimiliano Trave on October 28, 2011 at 9:59am

i add another test I'm trying to build the Tower Art by Arata Isozaki with hoopsnake as an exercise to understand more fully the component, at each recursion needs to change the index of the  selection component list item, this index is always changing from 0 to 3 , while for the first entry must be 3, I set a definition but do not know if this is the best solution. Let me know

regards Massimiliano

Attachments:

• tetrahedron tower.3dm, 157 KB
• tetrhaedron tower[autosave][autosave][autosave].gh, 32 KB

Permalink Reply by Yannis on October 29, 2011 at 4:09am

Hi massimiliano,

 

Thanks for the contribution first of all.

 

The way hoosnake handles data trees in the prepend mode is that it shifts the first index of all the input paths by one and then adds the new data at position 0.

The path mapper though is needed just to map the line output from {0,0} to {0}. This is so that after the Hoopsnake output it can be picked by the branch component. If you avoid the grafting during the drawing of the lines this component is not really needed. I attach a simplified version of your file.

 

The S can accept whatever you want, no problem. But it depends afterwards on your generative logic how these are managed.

 

 

Attachments:

• massimiliano_hoopsnaketest3.gh, 5 KB

Permalink Reply by Andrew Kudless on November 14, 2011 at 12:13am

In order to figure Hoopsnake out, I tried redoing this example with a slightly different logic. Although powerful, I'm still confused as to the "parametric" aspect of Hoopsnake as it seems like it acts more like a script in that you need to "run" it using the "loop" or "auto-loop all" and then "undo" it (using "reset") before running again. This is exactly the same process I use when scripting (run script, undo script, change value, repeat). In addition, input parameters that you think would change the model have no effect until you reset and rerun hoopsnake. Finally, Hoopsnake seems to have trouble with updating the rhino viewport automatically. I don't see any updates until I zoom, pan, or otherwise interact with the rhino viewport.

 

Yiannis, is there a way to make it more "live" instead of script-like"? Great work though.

Permalink Reply by Andrew Kudless on November 14, 2011 at 12:21am

Here's the file.

Attachments:

• Hoopsnake_Serpentine_01.gh, 12 KB