[amyblrtd] Archimedean spiral as an ordered collection of evenly spaced points

generate a collection of roughly evenly spaced points on a plane by selecting (roughly) evenly spaced points along an Archimedean spiral.  distance between consecutive selected points along the spiral should be the distance between loops.  (or should it be less, inspired by the triangular lattice?)

this collection of points is nice because it is automatically ordered by distance.

free variable: rotation of the spiral.  perhaps integer multiples of pi * phi.