end
# Return an SQL fragment to select a given area of the globe
- def self.sql_for_area(minlat, minlon, maxlat, maxlon)
- tilesql = QuadTile.sql_for_area(minlat, minlon, maxlat, maxlon)
- minlat = (minlat * 1000000).round
- minlon = (minlon * 1000000).round
- maxlat = (maxlat * 1000000).round
- maxlon = (maxlon * 1000000).round
-
- return "#{tilesql} AND latitude BETWEEN #{minlat} AND #{maxlat} AND longitude BETWEEN #{minlon} AND #{maxlon}"
+ def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix = nil)
+ tilesql = QuadTile.sql_for_area(minlat, minlon, maxlat, maxlon, prefix)
+ minlat = (minlat * 10000000).round
+ minlon = (minlon * 10000000).round
+ maxlat = (maxlat * 10000000).round
+ maxlon = (maxlon * 10000000).round
+
+ return "#{tilesql} AND #{prefix}latitude BETWEEN #{minlat} AND #{maxlat} AND #{prefix}longitude BETWEEN #{minlon} AND #{maxlon}"
end
end