+ prefix = t "geocoder.search_osm_nominatim.prefix_format", :name => prefix_name
+ object_type = place.attributes["osm_type"]
+ object_id = place.attributes["osm_id"]
+
+ @results.push({:lat => lat, :lon => lon,
+ :min_lat => min_lat, :max_lat => max_lat,
+ :min_lon => min_lon, :max_lon => max_lon,
+ :prefix => prefix, :name => name,
+ :type => object_type, :id => object_id})
+ @more_params[:exclude].push(place.attributes["place_id"].to_s)
+ end
+
+ render :action => "results"
+# rescue Exception => ex
+# @error = "Error contacting nominatim.openstreetmap.org: #{ex.to_s}"
+# render :action => "error"
+ end
+
+ def search_geonames
+ # get query parameters
+ query = params[:query]
+
+ # create result array
+ @results = Array.new
+
+ # ask geonames.org
+ response = fetch_xml("http://api.geonames.org/search?q=#{escape_query(query)}&maxRows=20&username=#{GEONAMES_USERNAME}")
+
+ # parse the response
+ response.elements.each("geonames/geoname") do |geoname|
+ lat = geoname.get_text("lat").to_s
+ lon = geoname.get_text("lng").to_s
+ name = geoname.get_text("name").to_s
+ country = geoname.get_text("countryName").to_s
+ @results.push({:lat => lat, :lon => lon,
+ :zoom => GEONAMES_ZOOM,
+ :name => name,
+ :suffix => ", #{country}"})
+ end
+
+ render :action => "results"
+ rescue Exception => ex
+ @error = "Error contacting ws.geonames.org: #{ex.to_s}"
+ render :action => "error"
+ end
+
+ def description
+ @sources = Array.new
+
+ @sources.push({ :name => "osm_nominatim" })
+ @sources.push({ :name => "geonames" })
+ end
+
+ def description_osm_nominatim
+ # get query parameters
+ lat = params[:lat]
+ lon = params[:lon]
+ zoom = params[:zoom]
+
+ # create result array
+ @results = Array.new
+
+ # ask nominatim
+ response = fetch_xml("#{NOMINATIM_URL}reverse?lat=#{lat}&lon=#{lon}&zoom=#{zoom}&accept-language=#{request.user_preferred_languages.join(',')}")
+
+ # parse the response
+ response.elements.each("reversegeocode/result") do |result|
+ description = result.get_text.to_s
+
+ @results.push({:prefix => "#{description}"})
+ end
+
+ render :action => "results"
+ rescue Exception => ex
+ @error = "Error contacting nominatim.openstreetmap.org: #{ex.to_s}"
+ render :action => "error"
+ end
+
+ def description_geonames
+ # get query parameters
+ lat = params[:lat]
+ lon = params[:lon]
+
+ # create result array
+ @results = Array.new
+
+ # ask geonames.org
+ response = fetch_xml("http://ws.geonames.org/countrySubdivision?lat=#{lat}&lng=#{lon}")
+
+ # parse the response
+ response.elements.each("geonames/countrySubdivision") do |geoname|
+ name = geoname.get_text("adminName1").to_s
+ country = geoname.get_text("countryName").to_s
+ @results.push({:prefix => "#{name}, #{country}"})
+ end
+
+ render :action => "results"
+ rescue Exception => ex
+ @error = "Error contacting ws.geonames.org: #{ex.to_s}"
+ render :action => "error"
+ end
+
+private
+
+ def fetch_text(url)
+ return Net::HTTP.get(URI.parse(url))
+ end
+
+ def fetch_xml(url)
+ return REXML::Document.new(fetch_text(url))
+ end
+
+ def format_distance(distance)
+ return t("geocoder.distance", :count => distance)
+ end
+
+ def format_direction(bearing)
+ return t("geocoder.direction.south_west") if bearing >= 22.5 and bearing < 67.5
+ return t("geocoder.direction.south") if bearing >= 67.5 and bearing < 112.5
+ return t("geocoder.direction.south_east") if bearing >= 112.5 and bearing < 157.5
+ return t("geocoder.direction.east") if bearing >= 157.5 and bearing < 202.5
+ return t("geocoder.direction.north_east") if bearing >= 202.5 and bearing < 247.5
+ return t("geocoder.direction.north") if bearing >= 247.5 and bearing < 292.5
+ return t("geocoder.direction.north_west") if bearing >= 292.5 and bearing < 337.5
+ return t("geocoder.direction.west")
+ end
+
+ def format_name(name)
+ return name.gsub(/( *\[[^\]]*\])*$/, "")
+ end
+
+ def count_results(results)
+ count = 0
+
+ results.each do |source|
+ count += source[:results].length if source[:results]
+ end
+
+ return count
+ end
+
+ def escape_query(query)
+ return URI.escape(query, Regexp.new("[^#{URI::PATTERN::UNRESERVED}]", false, 'N'))
+ end
+
+ def convert_latlon
+ @query = params[:query]
+
+ if latlon = @query.match(/^([NS])\s*(\d{1,3}(\.\d*)?)\W*([EW])\s*(\d{1,3}(\.\d*)?)$/).try(:captures) # [NSEW] decimal degrees
+ params[:query] = nsew_to_decdeg(latlon)
+ elsif latlon = @query.match(/^(\d{1,3}(\.\d*)?)\s*([NS])\W*(\d{1,3}(\.\d*)?)\s*([EW])$/).try(:captures) # decimal degrees [NSEW]
+ params[:query] = nsew_to_decdeg(latlon)
+
+ elsif latlon = @query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?$/).try(:captures) # [NSEW] degrees, decimal minutes
+ params[:query] = ddm_to_decdeg(latlon)
+ elsif latlon = @query.match(/^(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\s*([NS])\W*(\d{1,3})°?\s*(\d{1,3}(\.\d*)?)?['′]?\s*([EW])$/).try(:captures) # degrees, decimal minutes [NSEW]
+ params[:query] = ddm_to_decdeg(latlon)
+
+ elsif latlon = @query.match(/^([NS])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?\W*([EW])\s*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?$/).try(:captures) # [NSEW] degrees, minutes, decimal seconds
+ params[:query] = dms_to_decdeg(latlon)
+ elsif latlon = @query.match(/^(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]\s*([NS])\W*(\d{1,3})°?\s*(\d{1,2})['′]?\s*(\d{1,3}(\.\d*)?)?["″]?\s*([EW])$/).try(:captures) # degrees, minutes, decimal seconds [NSEW]
+ params[:query] = dms_to_decdeg(latlon)
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