Improve HOT layer attribution

[rails.git] / lib / bounding_box.rb

diff --git a/lib/bounding_box.rb b/lib/bounding_box.rb
index e560dbefa6c7f3e4c1c7bdf975b0a26917bd953a..1fc5dc69698a238821e125d2ae2f26d1dff485bf 100644 (file)
--- a/lib/bounding_box.rb
+++ b/lib/bounding_box.rb
@@ -1,13 +1,11 @@
 class BoundingBox
   attr_reader :min_lon, :min_lat, :max_lon, :max_lat
 
 class BoundingBox
   attr_reader :min_lon, :min_lat, :max_lon, :max_lat
 

-private

   LON_LIMIT = 180.0
   LAT_LIMIT = 90.0
   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?
   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?


@@ -16,24 +14,21 @@ public
   end
 
   def self.from_s(s)
   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)
   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)
     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
 
     from_bbox_array(bbox_array)
   end
 


@@ -42,40 +37,42 @@ public
     # 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?
     # 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
     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
     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
 
     end
     self
   end
 

-  def check_size
+  def check_size(max_area = MAX_REQUEST_AREA)

     # check the bbox isn't too large
     # 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.to_s +
+                                    ", and your request was too large. Either request a smaller area, or use planet.osm"

     end
     self
   end
     end
     self
   end


@@ -91,7 +88,7 @@ public
   end
 
   def complete?
   end
 
   def complete?

-    not to_a.include?(nil)
+    !to_a.include?(nil)

   end
 
   def centre_lon
   end
 
   def centre_lon


@@ -111,7 +108,7 @@ public
   end
 
   def slippy_width(zoom)
   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)
   end
 
   def slippy_height(zoom)


@@ -120,16 +117,16 @@ public
 
     Math.log((Math.tan(max) + 1.0 / Math.cos(max)) /
              (Math.tan(min) + 1.0 / Math.cos(min))) *
 
     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)
+      (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 = "")
   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("%.7f", min_lat)
+    hash["min#{underscore}lon"] = format("%.7f", min_lon)
+    hash["max#{underscore}lat"] = format("%.7f", max_lat)
+    hash["max#{underscore}lon"] = format("%.7f", max_lon)

     hash
   end
 
     hash
   end
 


@@ -155,19 +152,19 @@ public
     "#{min_lon},#{min_lat},#{max_lon},#{max_lat}"
   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 is required, and 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, -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
     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)
   end
 
   def update!(bbox)