Diagrid Deformations

Replies to This Discussion

Permalink Reply by Florian Frank on March 14, 2013 at 3:29pm

Hi Jonathan,

You can use use Kangaroo for deforming meshes and simulate the behavior like in the video. I've made you a quick example...if this method works for you, you just have to do a diagrid mesh. Tell me if you need help with that.

you may install the latest version of kangaroo (0.085).

Hope this helps.

Best

FF

Attachments:

• meshDeformations.gh, 16 KB

Permalink Reply by jonathan on March 15, 2013 at 1:28am

Hello Florian

Thanks you so much! I understood how you did it, but I got one question, how can a manage to set my points as a limit (ie: the floor)

The points are considered as vectors, and deforms the grid, I tried to play with values but of stiffness but not with the result I'm looking for ..

Thanks ;)

Permalink Reply by Florian Frank on March 15, 2013 at 7:23am

Hi jonathan, i'm sorry i didn't get the question with the points as a limit. Do you mean to set the points as the actual height or low point of the mesh?

The control is not really precise though...the only way is to play around with the stiffness as you have done already...probably there is a way to get more control over the heights.

This question should answer Daniel.

Good work

FF

Permalink Reply by jonathan on March 16, 2013 at 9:07am

Finally I made a new script using only GH, you can find the discussion here :

http://www.grasshopper3d.com/forum/topics/cover-grid-attractor

Thanks

Permalink Reply by Florian Frank on March 17, 2013 at 5:56am

I've seen this...but i see two problems. you'll never get the multiple attractor points to work with this properly...and the border is influenced by this method too.

Let's think about the problematic with two attractor points:

1 is pulling down

2 is pulling up

how are you defining how the points between the two are behaving...and much more important how much is the influence by the one or the other.

It is a physical behavior, what you're going to simulate, so it needs to be a physical calculation (Kangaroo).

Unless you want to do crazy shit in grasshopper to get there where Kangaroo already is.

What's the goal of this? getting a Nurbs? This is no problem with a mesh of this kind.

The kangaroo result is too dirty? It's fairly easy to smooth out the resulting surface.

Cheers

FF

Permalink Reply by RWNB on March 17, 2013 at 6:21am

hi florian,

how to modify this def to achiev another method: grid pinching or spreading with kangaroo?

Permalink Reply by Florian Frank on March 17, 2013 at 7:47am

Hi,

if you mean a push pull mechanism for grid density the only thing for kangaroo i know is the nervous system thing...that you already might be aware of.

this method with unary forces will not work on a flat surface. The good old Jellyfish or magnetic field method are other options.

Cheers FF

Permalink Reply by loreta lukoseviciene on December 23, 2014 at 4:13pm

Florian, 

Thank you for very usful gh set up.

I have a question, how can I add more points? 

Thank you