class BoundingBox
attr_reader :min_lon, :min_lat, :max_lon, :max_lat
-private
LON_LIMIT = 180.0
LAT_LIMIT = 90.0
- SCALED_LON_LIMIT = LON_LIMIT * GeoRecord::SCALE
- SCALED_LAT_LIMIT = LAT_LIMIT * GeoRecord::SCALE
+ SCALED_LON_LIMIT = LON_LIMIT * GeoRecord::SCALE
+ SCALED_LAT_LIMIT = LAT_LIMIT * GeoRecord::SCALE
-public
def initialize(min_lon, min_lat, max_lon, max_lat)
@min_lon = min_lon.to_f unless min_lon.nil?
@min_lat = min_lat.to_f unless min_lat.nil?
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] and params[:bbox].count(',') == 3
- bbox_array = params[:bbox].split(',')
- end
+ bbox_array = params[:bbox].split(",") if params[:bbox] && params[:bbox].count(",") == 3
from_bbox_array(bbox_array)
end
def self.from_lon_lat_params(params)
- if params[:minlon] and params[:minlat] and params[:maxlon] and params[:maxlat]
- bbox_array = [params[:minlon], params[:minlat], params[:maxlon], params[:maxlat]]
- end
+ bbox_array = [params[:minlon], params[:minlat], params[:maxlon], params[:maxlat]] if params[:minlon] && params[:minlat] && params[:maxlon] && params[:maxlat]
+ from_bbox_array(bbox_array)
+ end
+
+ def self.from_lrbt_params(params)
+ bbox_array = [params[:l], params[:b], params[:r], params[:t]] if params[:l] && params[:b] && params[:t] && params[:t]
from_bbox_array(bbox_array)
end
# 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
def check_boundaries
# check the bbox is sane
- if min_lon > max_lon
- raise OSM::APIBadBoundingBox.new(
- "The minimum longitude must be less than the maximum longitude, but it wasn't")
- end
- if min_lat > max_lat
- raise OSM::APIBadBoundingBox.new(
- "The minimum latitude must be less than the maximum latitude, but it wasn't")
- end
+ raise OSM::APIBadBoundingBox, "The minimum longitude must be less than the maximum longitude, but it wasn't" if min_lon > max_lon
+ raise OSM::APIBadBoundingBox, "The minimum latitude must be less than the maximum latitude, but it wasn't" if min_lat > max_lat
+
if min_lon < -LON_LIMIT || min_lat < -LAT_LIMIT || max_lon > +LON_LIMIT || max_lat > +LAT_LIMIT
- raise OSM::APIBadBoundingBox.new("The latitudes must be between #{-LAT_LIMIT} and #{LAT_LIMIT}," +
- " and longitudes between #{-LON_LIMIT} and #{LON_LIMIT}")
+ raise OSM::APIBadBoundingBox, "The latitudes must be between #{-LAT_LIMIT} and #{LAT_LIMIT}, " \
+ "and longitudes between #{-LON_LIMIT} and #{LON_LIMIT}"
end
self
end
- def check_size
+ def check_size(max_area = Settings.max_request_area)
# check the bbox isn't too large
- if area > MAX_REQUEST_AREA
- raise OSM::APIBadBoundingBox.new("The maximum bbox size is " + MAX_REQUEST_AREA.to_s +
- ", and your request was too large. Either request a smaller area, or use planet.osm")
+ if area > max_area
+ raise OSM::APIBadBoundingBox, "The maximum bbox size is #{max_area}" \
+ ", and your request was too large. Either request a smaller area, or use planet.osm"
end
self
end
end
end
+ def linear_size
+ if complete?
+ (max_lon - min_lon) + (max_lat - min_lat)
+ else
+ 0
+ end
+ end
+
def complete?
- not to_a.include?(nil)
+ to_a.exclude?(nil)
end
def centre_lon
end
def slippy_width(zoom)
- width * 256.0 * 2.0 ** zoom / 360.0
+ width * 256.0 * (2.0**zoom) / 360.0
end
def slippy_height(zoom)
min = min_lat * Math::PI / 180.0
max = max_lat * Math::PI / 180.0
- Math.log((Math.tan(max) + 1.0 / Math.cos(max)) /
- (Math.tan(min) + 1.0 / Math.cos(min))) *
- (128.0 * 2.0 ** zoom / Math::PI)
+ Math.log((Math.tan(max) + (1.0 / Math.cos(max))) /
+ (Math.tan(min) + (1.0 / Math.cos(min)))) *
+ (128.0 * (2.0**zoom) / Math::PI)
end
# there are two forms used for bounds with and without an underscore,
# cater for both forms eg minlon and min_lon
def add_bounds_to(hash, underscore = "")
- hash["min#{underscore}lat"] = min_lat.to_s
- hash["min#{underscore}lon"] = min_lon.to_s
- hash["max#{underscore}lat"] = max_lat.to_s
- hash["max#{underscore}lon"] = max_lon.to_s
+ hash["min#{underscore}lat"] = format("%<lat>.7f", :lat => min_lat)
+ hash["min#{underscore}lon"] = format("%<lon>.7f", :lon => min_lon)
+ hash["max#{underscore}lat"] = format("%<lat>.7f", :lat => max_lat)
+ hash["max#{underscore}lon"] = format("%<lon>.7f", :lon => max_lon)
hash
end
"#{min_lon},#{min_lat},#{max_lon},#{max_lat}"
end
- private
- def self.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")
+ class << self
+ private
+
+ def from_bbox_array(bbox_array)
+ raise OSM::APIBadUserInput, "The parameter bbox must be of the form min_lon,min_lat,max_lon,max_lat" unless bbox_array
+
+ # 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.clamp(-LON_LIMIT, +LON_LIMIT)
+ min_lat = bbox_array[1].to_f.clamp(-LAT_LIMIT, +LAT_LIMIT)
+ max_lon = bbox_array[2].to_f.clamp(-LON_LIMIT, +LON_LIMIT)
+ max_lat = bbox_array[3].to_f.clamp(-LAT_LIMIT, +LAT_LIMIT)
+ 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)
projects / rails.git / blobdiff