X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/b42a28067dc0519e77621ab0af3b549ce360ce17..169a29a5d7c4352f2742d6e1257af6b78bc90b20:/lib/quad_tile.rb diff --git a/lib/quad_tile.rb b/lib/quad_tile.rb index a818f6a27..258fb9fd5 100644 --- a/lib/quad_tile.rb +++ b/lib/quad_tile.rb @@ -9,11 +9,11 @@ module QuadTile return tile_for_xy(x, y) end - def self.tiles_for_area(minlat, minlon, maxlat, maxlon) - minx = ((minlon + 180) * 65535 / 360).round - maxx = ((maxlon + 180) * 65535 / 360).round - miny = ((minlat + 90) * 65535 / 180).round - maxy = ((maxlat + 90) * 65535 / 180).round + def self.tiles_for_area(bbox) + minx = ((bbox.min_lon + 180) * 65535 / 360).round + maxx = ((bbox.max_lon + 180) * 65535 / 360).round + miny = ((bbox.min_lat + 90) * 65535 / 180).round + maxy = ((bbox.max_lat + 90) * 65535 / 180).round tiles = [] minx.upto(maxx) do |x| @@ -39,13 +39,32 @@ module QuadTile return t end + + def self.iterate_tiles_for_area(bbox) + tiles = tiles_for_area(bbox) + first = last = nil + + tiles.sort.each do |tile| + if last.nil? + first = last = tile + elsif tile == last + 1 + last = tile + else + yield first, last + + first = last = tile + end + end + + yield first, last unless last.nil? + end end - def self.sql_for_area(minlat, minlon, maxlat, maxlon, prefix) + def self.sql_for_area(bbox, prefix) sql = Array.new single = Array.new - iterate_tiles_for_area(minlat, minlon, maxlat, maxlon) do |first,last| + iterate_tiles_for_area(bbox) do |first,last| if first == last single.push(first) else @@ -58,24 +77,5 @@ module QuadTile return "( " + sql.join(" OR ") + " )" end - def self.iterate_tiles_for_area(minlat, minlon, maxlat, maxlon) - tiles = tiles_for_area(minlat, minlon, maxlat, maxlon) - first = last = nil - - tiles.sort.each do |tile| - if last.nil? - first = last = tile - elsif tile == last + 1 - last = tile - else - yield first, last - - first = last = tile - end - end - - yield first, last unless last.nil? - end - private_class_method :tile_for_xy, :iterate_tiles_for_area end