Displays map with overlaid circle of arbitrary radius (miles or km)
The circle view is useful when you want to see everything that's less than some specified distance from some location.
The donut view is useful when you know that something is "a mile away" (or some other distance), but aren't sure exactly WHERE it is & want to try and guess its likely location. The donut itself represents the region of uncertainty and margin of error.
Features:
* Distance in Miles and Kilometers
* Easily toggle between regular and hybrid map views (hybrid is aerial/satellite image with overlaid map)
* Two visualization types: circle and donut