How to construct network surfaces from complex SubDs?

[adam_murray272]

Hello,

I’m trying to convert muiliple SubD surfaces into their retospective network surface counterpart inorder to use panalling tools in Grasshopper. However, whenever I personally try to convert the extracted curves to construct a network surface it fails even when I manually select curves within the correct order. Any suggestions?

SubD’s:

Surface edges to construct the network surface:

Rhino file: Pavilion.3dm (2.8 MB)

[davidcockey]

Comments:

The input curves for NetworkSrf must meet certain requirements.

• The NetworkSrf command creates a surface from a network of crossing curves.
• All curves in one direction must cross all curves in the other direction and cannot cross each other.
  Rhinoceros Help

All surfaces in Rhino must have four sides. It is possible for 1, 2 or 3 sides to have zero length. However NetworkSrf does not allow zero length sides.

[adam_murray272]

Thanks for the reply David!

After looking through everything I’ve solved the issue for the most part. However, there is just one face left I’m struggle to rebuild accurately due to the complex form (highlighted in red).

The best outcome I’ve achieved is (highlighted in purple) with the smaller element removed entirely (highlighted in green). Is there a possible solution?

Rhino7_File: Pavilion_Reference_Surfaces.3dm (18.4 MB)

Thanks

[lander (CAD CAM CNC)]

I don’t get it. Do you want all the ‘gaps’? Or nah?

[adam_murray272]

Yes I want the gaps to remain, I simply just want that Sub-D to be rebuilt into a network surface as accurately as possible. I’ve done all of them besides the Sub-D highlighted in red withi the file I provided as it’s a complex form.

[lander (CAD CAM CNC)]

Well, it’s 5-sided… sooo… technically it’s 7-sided cause of the kinks, soooo…probably can’t be ‘one’ surface without being redesigned.

can’t be done unless the developers invent 7 sided nurbs

I suppose you could try one ‘trimmed’ srf maybe …

Maybe:

so long as ‘trimmed’ is acceptable, this is the direction I’d be going:

It’s a juggling process. This is probably the toughest surface I’ve ever seen

still a few scrunched spots, taking a break, bbl.