Sweep1 and Split surface keeps its original UV Points. Please help.

I wish to create a domed vault and then draw a diagrid on this surface.

I have created the domed vault as seen in my rhino file and the attached image (green surface), which I created by Sweep1 two arches and then chopping the blob end off.

I've then 'set one surface' in grasshopper ready to sub divide this surface, but the grasshopper definition seems to remember the original UV points (illustrated by bright green curves) before I split the surface and therefore applies the sub divide to the original geometry i've already chopped off as seen in the image.

If I try applying a diagrid component directly to the surface, it puts all 41 points along one edge of the surface on top of each other. In the image this is seen as 9 points along the edge.

The green curves on the surface show how the UV points are traced around the surface.

I guess the best way to get an even diagrid is to remove the existing UV points so I can subdivide the surface. Any suggestions?

Matt.

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Permalink Reply by Danny Boyes on June 7, 2011 at 1:14pm

Not entirely sure what you want your end result to be, but here is an attempt to rebuild the dome with more regular points for a diagrid. It might give you some ideas as a way to progress.

Attachments:

RebuildDome4Diagrid.ghx, 324 KB

Permalink Reply by Pieter Segeren on June 7, 2011 at 4:11pm

Hi Matt, I also am not sure what you are attempting. Anyway here is my definition. Hope this helps.

Attachments:

DiagridProblem__PSG.ghx, 242 KB

Permalink Reply by Matt Morris on June 8, 2011 at 2:44am

Danny Boyes you champ.

Thank you very much, that was exactly what I was looking for. I was trying to sub divide the original surface which was already messed up. Thanks a lot.

Pieter, I couldn't get your definition to work. The error messages reads that you've got version 8.0007 and i've got 8.0006. I'll have to get myself an update. Thanks for the definition anyway, it looks great.

Permalink Reply by Pieter Segeren on June 8, 2011 at 3:31am

Hmm, I made it with 8.00010.... please try getting that one.

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