Select/group all surfaces the same plane

Grasshopper
5

Hi!

Thanks again for your help! :slight_smile:

But there are still some challenges to go ;).
challenges;

  1. In the new file, there are surfaces missing in surface 2, in the front and the back see picture.

  2. The surfaces don’t necessarily have to touch each-other. The only condition is that they lay in the same plane. So when looking from the top down, they have to be in 1 line. See attached a new file, where I added 6 internal walls, which have to be in 3 selections (2x3)…
    A suggestion would be to select them based on their centroids coordinates?

Do you have a suggestion?

Thanks again! :+1:

2020-04-11 Surface selection based on plane_RE_RE_re.gh (480.6 KB)

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