I really need some help making a grid on a surface

I'm trying to make a grid on a surface. The surface is similar to the one on the second image, what I managed to make so far is what's on the first image. I just can't figure out how to keep the horizontality of the lines and at the same time only make the grid within the surface on the second image.

I need to be able to assign some geometry to each point, I'll probably end up using the orient component.

I also assigned my files so you can see how I did so far...

I attach a third image that shows a detail of how I want the tiled geometry to be cut at the edge.

Attachments:

2010_06_10 for cherckerboard.3dm, 354 KB
grid.ghx, 178 KB

Replies to This Discussion

Permalink Reply by Evert Amador on July 13, 2010 at 10:21am

Hi,

It will work better if you create a duotone bitmap for the displacement map.

Cheers

Evert

Permalink Reply by David Wood on July 6, 2010 at 5:49am

Could you simply boolean difference away the area you don't want?

Permalink Reply by Guy Balter on July 6, 2010 at 12:34am

Hi Emil,

maybe this thread will help you:
http://www.grasshopper3d.com/forum/topics/unevenly-divided-surface?...

Guy

Permalink Reply by Emil Klagenberg on July 13, 2010 at 10:37am

Evert:
Thanks for all your help, do you by any chance know where I can find a bit more information about this duotone bitmap displacement map?

Permalink Reply by Evert Amador on July 13, 2010 at 1:44pm

Hi Emil,

What I meant is that displacement maps work better if there is a higher contrast among the colours of the map, duotone being one with a strong contrast, in your case perhaps a gray scale map would work better so the spheres don't become cylinders protuding.

I don't know how form Z applies displacement, I don't even know if it's got a propper displacement map or just the usual bump/normal map, some render engines apply displacement maps to move the vertexes of the geometry to make them look actually bumpy.

http://en.wikipedia.org/wiki/Displacement_mapping

anyway, good luck and share the results so we all learn something new everyday!

Cheers

Evert