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Is there a way to connect vertices (separate points) into a mesh grid inside the geometry nodes? What I basically need is to get this: enter image description here

from this: enter image description here

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Maybe this example will help you (Blender 3.1.2):

Connect neighbor vertices into a polygons - Screen 1

Connect neighbor vertices into a polygons - Screen 2

  • Here I simply instantiate mesh lines at the points, extrude them minimally in height so that I get edges from them.

  • I merge these with the node Mesh Boolean with the underlying grid (you can also do this with a convex hull).

  • The resulting mesh is then simply triangulated and the outer hull is removed again.

  • To make the positions exactly match the points, I get them directly back from the points and merge identical vertices.

  • In the last step I extrude the mesh again, and separate the edges. You can omit this step if you don't need the edges individually.

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  • $\begingroup$ Thank you, very useful! $\endgroup$
    – user4979
    Commented Jul 18, 2022 at 8:28

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