return [Geomodel::Math.distance(point, Geomodel::Types::Point.new(bbox.south, bbox.east)),
                  Geomodel::Math.distance(point, Geomodel::Types::Point.new(bbox.north, bbox.east)),
                  Geomodel::Math.distance(point, Geomodel::Types::Point.new(bbox.south, bbox.west)),
                  Geomodel::Math.distance(point, Geomodel::Types::Point.new(bbox.north, bbox.west))].min