Diagrid Openings

Hello,

I found this diagrid surface definition here in Grasshopper3D.com, but sadly, the very definition was never posted along with the image.

So, I am asking any of you here, do you know how to produce this very definition? Note that the diagrid pattern is produced from a freeform surface, also, the openings of the diagrids are bigger towards the centre and become smaller towards the edges.

If any of you know how to produce this very definition, then please post me the definition, because I have been fiddling with Grasshopper and Rhino for days now without any results, I just can't seem to get it work.

Thank you

Marios

Comment

You need to be a member of Grasshopper to add comments!

Comment by Marios on December 29, 2010 at 4:42am: Fernando Rial,

Of course I'll share it :)

What is your e-mail so that I can send it to you?

Comment by Fernando Rial on December 29, 2010 at 12:55am: Marios,

I would really aprecciate if you could share the definition. I have a similar problem with a diagrid and I´m not able to get out of the problem.

Thank you

Comment by Marios on December 28, 2010 at 3:37pm: ivo.[semerdjiev]:

Thank you so much for your generosity. I appreciate it.

My e-mail is marios_87@hotmail.com

Comment by Ivo A. Semerdjiev on December 28, 2010 at 1:49pm: Marios,

i took a look yout post and here is some solution of what you might wanted to do:

p.s. send me your e_mail to send you the definition....

and Pablo0o0oo0o000oo - the web_site is for everyone and everyone should learn from everyone. learn to share!

Comment by Victor Leung on December 27, 2010 at 11:03am: A quick gut reply,

I think if you are able to produce the diagrid, then its a good start. Otherwise consult other diagrid articles.

Next, the quad (4 sided surface) that is resulted from divide surface are not planar. And offset clearly needs a plane for offsetting, so this it where the logic would not work.

Depends on what result you want to achieve, geometry output? image output? You may or may not need the quads to be planar, which will eventually have different methods to produce the effect.

To make them planar is very difficult, either you need an optimization script, or you comprimise the water tightness. I don't think you are aiming this.

To allow the quads to still be non-planar, then you CANNOT use offset, you have to perform another operation that creates a similar result. I provide a sample of what such 'other similar operation' could be. After-all, that is where your design came in.

I drew opposite lines and evaluate them with a parameter (0<t<0.5)

Comment by Marios on December 27, 2010 at 10:00am: Pablo0o0oo0o000oo:

Trust me, I have tried to do it myself, otherwise I wouldn't have posted for help here.

I did divide the surface and created four points and offset each surface. I just can't figure out how to offset each surface within the boundary that is created by the four points.

I know you're talking about learning something, but didn't it occur to you that once I have seen the definition of what I am asking for then I'll learn it and understand how it's made and why it's made the way it is.

Comment by Pablo0o0oo0o000oo on December 27, 2010 at 9:19am: try to do it yourself, its very easy, if you divide a surface and create 4 points surface and then you make an offset of each surface with the value of the curvature or the surface in each point, or you can create an atraction law with a point and the distance between the point and each point of the grid, this blog is for people who wanted to learn something not to take it done.