Making circles on the surface of a mesh

Taking a cluster of points and moving them on to a circle turned it to be easier than I thought… At first it seemed more complicated to get at the points, because sometimes the Show Values on the output of a Filter node is, let’s face it, misleading. Based on what a certain Show Values showed me, I started off using arrays instead of Filters, and that made the graph a little messier.

First, I calculate the point I want to use as the center of the circle. That gives me the first vector I need.

Subtracting the CC (circle center) vector from the PP (Point Position) vectors gives me a set of vectors that take me from the circle center to the points.

I just resize the PP-CC vectors to get point positions that fit on a circle:

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