Is this a circle of the same radius, but arbitary centre?
Originally Posted by circleBounding
If the radius can be different depending on the centre try this (all units are
in grid pitch units):
If point at (a,b)
Nhi = total number points (assumed >12)
Nwrk=number of points enclosed by circle centred at (a,b) of radius Rwrk
Else If Nwrk<12