X-Git-Url: https://git.openstreetmap.org./rails.git/blobdiff_plain/baf10cd39289cd7e94a819305e46f43e85a136c6..469f64384dc7d3266f40cb1a0afafd4df1abb6e8:/lib/bounding_box.rb diff --git a/lib/bounding_box.rb b/lib/bounding_box.rb index e78434263..11e831cfe 100644 --- a/lib/bounding_box.rb +++ b/lib/bounding_box.rb @@ -3,10 +3,8 @@ class BoundingBox LON_LIMIT = 180.0 LAT_LIMIT = 90.0 - SCALED_LON_LIMIT = LON_LIMIT * GeoRecord::SCALE - SCALED_LAT_LIMIT = LAT_LIMIT * GeoRecord::SCALE - - public + SCALED_LON_LIMIT = LON_LIMIT * GeoRecord::SCALE + SCALED_LAT_LIMIT = LAT_LIMIT * GeoRecord::SCALE def initialize(min_lon, min_lat, max_lon, max_lat) @min_lon = min_lon.to_f unless min_lon.nil? @@ -16,16 +14,12 @@ class BoundingBox end def self.from_s(s) - if s.count(',') == 3 - BoundingBox.new(*s.split(/,/)) - else - nil - end + BoundingBox.new(*s.split(/,/)) if s.count(",") == 3 end def self.from_bbox_params(params) - if params[:bbox] && params[:bbox].count(',') == 3 - bbox_array = params[:bbox].split(',') + if params[:bbox] && params[:bbox].count(",") == 3 + bbox_array = params[:bbox].split(",") end from_bbox_array(bbox_array) end @@ -49,14 +43,22 @@ class BoundingBox # only try to expand the bbox if there is a value for every coordinate # which there will be from the previous line as long as array does not contain a nil if bbox.complete? - @min_lon = [-SCALED_LON_LIMIT, - bbox.min_lon + margin * (min_lon - max_lon)].max if bbox.min_lon < min_lon - @min_lat = [-SCALED_LAT_LIMIT, - bbox.min_lat + margin * (min_lat - max_lat)].max if bbox.min_lat < min_lat - @max_lon = [+SCALED_LON_LIMIT, - bbox.max_lon + margin * (max_lon - min_lon)].min if bbox.max_lon > max_lon - @max_lat = [+SCALED_LAT_LIMIT, - bbox.max_lat + margin * (max_lat - min_lat)].min if bbox.max_lat > max_lat + if bbox.min_lon < min_lon + @min_lon = [-SCALED_LON_LIMIT, + bbox.min_lon + margin * (min_lon - max_lon)].max + end + if bbox.min_lat < min_lat + @min_lat = [-SCALED_LAT_LIMIT, + bbox.min_lat + margin * (min_lat - max_lat)].max + end + if bbox.max_lon > max_lon + @max_lon = [+SCALED_LON_LIMIT, + bbox.max_lon + margin * (max_lon - min_lon)].min + end + if bbox.max_lat > max_lat + @max_lat = [+SCALED_LAT_LIMIT, + bbox.max_lat + margin * (max_lat - min_lat)].min + end end self end @@ -64,15 +66,17 @@ class BoundingBox def check_boundaries # check the bbox is sane if min_lon > max_lon - fail OSM::APIBadBoundingBox.new( - "The minimum longitude must be less than the maximum longitude, but it wasn't") + raise OSM::APIBadBoundingBox.new( + "The minimum longitude must be less than the maximum longitude, but it wasn't" + ) end if min_lat > max_lat - fail OSM::APIBadBoundingBox.new( - "The minimum latitude must be less than the maximum latitude, but it wasn't") + raise OSM::APIBadBoundingBox.new( + "The minimum latitude must be less than the maximum latitude, but it wasn't" + ) end if min_lon < -LON_LIMIT || min_lat < -LAT_LIMIT || max_lon > +LON_LIMIT || max_lat > +LAT_LIMIT - fail OSM::APIBadBoundingBox.new("The latitudes must be between #{-LAT_LIMIT} and #{LAT_LIMIT}," + + raise OSM::APIBadBoundingBox.new("The latitudes must be between #{-LAT_LIMIT} and #{LAT_LIMIT}," + " and longitudes between #{-LON_LIMIT} and #{LON_LIMIT}") end self @@ -81,7 +85,7 @@ class BoundingBox def check_size(max_area = MAX_REQUEST_AREA) # check the bbox isn't too large if area > max_area - fail OSM::APIBadBoundingBox.new("The maximum bbox size is " + max_area.to_s + + raise OSM::APIBadBoundingBox.new("The maximum bbox size is " + max_area.to_s + ", and your request was too large. Either request a smaller area, or use planet.osm") end self @@ -162,20 +166,23 @@ class BoundingBox "#{min_lon},#{min_lat},#{max_lon},#{max_lat}" end - private - - def self.from_bbox_array(bbox_array) - unless bbox_array - fail OSM::APIBadUserInput.new( - "The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat") + class << self + private + + def from_bbox_array(bbox_array) + unless bbox_array + raise OSM::APIBadUserInput.new( + "The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat" + ) + end + # Take an array of length 4, create a bounding box with min_lon, min_lat, max_lon and + # max_lat within their respective boundaries. + min_lon = [[bbox_array[0].to_f, -LON_LIMIT].max, +LON_LIMIT].min + min_lat = [[bbox_array[1].to_f, -LAT_LIMIT].max, +LAT_LIMIT].min + max_lon = [[bbox_array[2].to_f, +LON_LIMIT].min, -LON_LIMIT].max + max_lat = [[bbox_array[3].to_f, +LAT_LIMIT].min, -LAT_LIMIT].max + BoundingBox.new(min_lon, min_lat, max_lon, max_lat) end - # Take an array of length 4, create a bounding box with min_lon, min_lat, max_lon and - # max_lat within their respective boundaries. - min_lon = [[bbox_array[0].to_f, -LON_LIMIT].max, +LON_LIMIT].min - min_lat = [[bbox_array[1].to_f, -LAT_LIMIT].max, +LAT_LIMIT].min - max_lon = [[bbox_array[2].to_f, +LON_LIMIT].min, -LON_LIMIT].max - max_lat = [[bbox_array[3].to_f, +LAT_LIMIT].min, -LAT_LIMIT].max - BoundingBox.new(min_lon, min_lat, max_lon, max_lat) end def update!(bbox)