Selecting adjacent panels by closest points

Hi yall; I've been working on a tool to examine the angle between any given panel and its immediate neighbors. I'm new to gh, so it's been a struggle. I settled on selecting panels by referencing their centerpoints from points along the edge of the reference panel. This works out great when the panels are regularly sized/spaced (right side of ex image), but it gets problematic in more deformed sections (left side)- the closest centerpoint to a given edge is not necessarily on the neighboring panel.

I've completely run out of steam on this, and would appreciate any thoughts on another way to ID adjacent panels (or fix up what I've got).

ps: any ideas how to automatically find angles meeting a certain threshold? (ie, <163)

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Permalink Reply by Mohamed Naeim on October 25, 2016 at 11:10pm

Did you try the IVY Plugin

I think your issue can be solved with graphs

Permalink Reply by Hyungsoo Kim on October 26, 2016 at 12:02am

Try "Brep Topology" component.(Surface-->Analysis-->Brep Topology)

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angletestv2_re.gh, 205 KB

Permalink Reply by Erik Schiller on October 26, 2016 at 8:02am

This is pretty rad, thanks. Could you maybe explain what's happening, a bit? Especially the middle bit, between the topology and tree branch components?

Permalink Reply by Hyungsoo Kim on October 26, 2016 at 8:37am

Check this as well. I think there's no need to explain it.

Brep Topology's adjacency outputs are indices of faces per face or edge, so the index of face is the same with the branch number of adjacent faces.

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