Correct calculation of reciprocal angles.

[rails.git] / app / controllers / geocoder_controller.rb

diff --git a/app/controllers/geocoder_controller.rb b/app/controllers/geocoder_controller.rb
index 6c4afeb90eee44a0378d9c62f53d3133ed642856..8abcbdc4445a773acaad8bfe2506e90e16b609ba 100644 (file)
--- a/app/controllers/geocoder_controller.rb
+++ b/app/controllers/geocoder_controller.rb
@@ -41,6 +41,7 @@ class GeocoderController < ApplicationController
     results.push description_osm_namefinder("cities", lat, lon, 2)
     results.push description_osm_namefinder("towns", lat, lon, 4)
     results.push description_osm_namefinder("places", lat, lon, 10)
+    results.push description_geonames(lat, lon)
 
     render :update do |page|
       page.replace_html :search_results_content, :partial => 'results', :object => results
@@ -184,7 +185,7 @@ private
       name = named.attributes["name"].to_s
       description = named.elements["description"].to_s
       distance = format_distance(place.attributes["approxdistance"].to_i)
-      direction = format_direction(360 - place.attributes["direction"].to_i)
+      direction = format_direction((place.attributes["direction"].to_i - 180) % 360)
       prefix = "#{distance} #{direction} of #{type} "
       results.push({:lat => lat, :lon => lon, :zoom => zoom,
                     :prefix => prefix.capitalize, :name => name,
@@ -196,6 +197,24 @@ private
     return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :error => "Error contacting www.frankieandshadow.com: #{ex.to_s}" }
   end
 
+  def description_geonames(lat, lon)
+    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
+
+    return { :type => "Location", :source => "GeoNames", :url => "http://www.geonames.org/", :results => results }
+  rescue Exception => ex
+    return { :type => types.capitalize, :source => "OpenStreetMap Namefinder", :url => "http://www.frankieandshadow.com/osm/", :error => "Error contacting www.frankieandshadow.com: #{ex.to_s}" }
+  end
+
   def fetch_text(url)
     return Net::HTTP.get(URI.parse(url))
   end