Flexible diagrid

Hi!

I'm trying to make a flexible diagrid, similar to the photos. Is it possible with kangaroo?

I was thinking about creating the grid, setting the lines as springs and apply some unary opposite forces to deform the grid.

Am I in the right way?

Is it enough with the springs or do I need to give the lines bending properties?

Could the forces be set like points that I can move in Rhino so I can have more control of the deformation?

Any suggestions?

Thanks in advance

Attachments:

IMG_3703_800x600.jpg, 39 KB

Replies to This Discussion

Permalink Reply by gonzalo on February 6, 2011 at 10:14am

another photo

Attachments:

IMG_3704_800x600.jpg, 39 KB

Permalink Reply by Daniel Piker on February 6, 2011 at 11:31am

You might find it useful to add weaker springs across the short diagonals of the quads to give them some resistance to stretching so it keeps it's form a bit.

(see attached files)

and yes, you could also do it with bending, but it's probably not necessary in this case.

Attachments:

flexdiagrid.3dm, 211 KB
flexdiagrid.ghx, 307 KB

Permalink Reply by gonzalo on February 6, 2011 at 11:53am

Thanks a lot!

you make everything look so easy ;)

cheers

Permalink Reply by Archieboy on August 7, 2011 at 8:22am

Hi Daniel,

I want to do something similar to your grid conformalization video: http://vimeo.com/18269637

and I found this post is very close to get the one you showed in your video. I tried myself, however, I don't know which factor is the most important one to smoothly deform the grid, I'm attaching the gh and rhino I'm working on.

Attachments:

flexdiagrid.3dm, 217 KB
20110807_flexDiagrid.gh, 18 KB

Permalink Reply by Daniel Piker on August 7, 2011 at 9:57am

One way would be to add springs for the diagonals like so:

Attachments:

flexdiagrid2.3dm, 317 KB
20110807_flexDiagrid2.gh, 29 KB

Permalink Reply by Archieboy on August 8, 2011 at 3:51am

Hi Daniel,

Thank you for your reply. However, I still have a question:

When I drag one point during the simulation, it seems all the springs deform at once; it's unlike yours, that only within certain threshold are affected. I tried 'cutoff', however, it still doesn't quite work. Could you indicate which factor in springs that control the smooth transition?