Dual Mesh Grouping

Grasshopper
1

Hi everyone,

I’m now solving a dual mesh grouping problem. I started with a loop-subd mesh, dual-mesh to hexagons, then I want those hexagons three in a group (as red lines in picture). But I couldn’t figure out how those indexes were sorted after dual mesh component.

Snipaste_2020-07-10_11-41-23
Snipaste_2020-07-10_11-41-23887×747 46.1 KB

I’d like to ask if there’s anyway to sort those hexagons, or I should try more brute force approach such as finding 3 Closest Pts and group it together? Thanks!!

(Btw the C# component is a variant from Daniel Piker here and here, which re-ordered loop subd faces, but the index after dual mesh is still quite random for me :frowning: )

dual-mesh-gh
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dual mesh-01
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loop-subd-mesh
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dual-mesh
dual-mesh887×747 15.1 KB

20200709_Hexagon Grouping_Question.gh (46.4 KB)

2

Can you sort them by the center point x, then y to reindex the cells. Then select adjacents to group?

3

Oh, Thank Scott for giving me the idea, I just prototype it and looks pretty nice!

grouping01
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dual-mesh-gh01
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Actually my real goal is to group the whole geodesic dome. Probably need to keep working on those edges between orange peels, but I’ll keep updating here.

image
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Also, still curious to know if this problem can be solved reversely from dual-mesh algorithm? Just like Daniel Piker sorted loop-subd faces mathematically, Thank again!