This demo shows how to use a boundary.circle.lat and boundary.circle.lon spatially limit the results
when performing an autocomplete search.
Results will be limited to features that fall within a specified radius distance.
boundary.circle.lat
and
boundary.circle.lon
define the center point of the search area, while
radius
sets the radius (in meters).
Unlike a focus point (which boosts nearby matches but can still return distant results),
a boundary circle will exclude all results that fall outside the specified radius.
For example, searching for “McDonalds” with a boundary circle centered in
Rio de Janeiro and a radius of 500 meters will only return McDonalds locations
within that 500 m area. Locations outside the circle will not be included in the results.