Commit initial work on export tab.

[rails.git] / lib / map_boundary.rb

diff --git a/lib/map_boundary.rb b/lib/map_boundary.rb
index f337c12f1732f43d510aed52bb3a7091b96d80ad..9b39c9342353fd28a693d1052a45bce99048fe07 100644 (file)
--- a/lib/map_boundary.rb
+++ b/lib/map_boundary.rb
@@ -1,21 +1,30 @@
 module MapBoundary
-   def check_boundaries(min_lon, min_lat, max_lon, max_lat)
-      # check the bbox is sane
-      unless min_lon <= max_lon
-        raise("The minimum longitude must be less than the maximum longitude, but it wasn't")
-      end
-      unless min_lat <= max_lat
-        raise("The minimum latitude must be less than the maximum latitude, but it wasn't")
-      end
-      unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90
-        raise("The latitudes must be between -90 and 90, and longitudes between -180 and 180")
-      end
+  def sanitise_boundaries(bbox)
+    min_lon = [bbox[0].to_f,-180].max
+    min_lat = [bbox[1].to_f,-90].max
+    max_lon = [bbox[2].to_f,+180].min
+    max_lat = [bbox[3].to_f,+90].min
 
-      # check the bbox isn't too large
-      requested_area = (max_lat-min_lat)*(max_lon-min_lon)
-      if requested_area > APP_CONFIG['max_request_area']
-        raise("The maximum bbox size is " + APP_CONFIG['max_request_area'].to_s + 
-          ", and your request was too large. Either request a smaller area, or use planet.osm")
-      end
+    return min_lon, min_lat, max_lon, max_lat
+  end
+
+  def check_boundaries(min_lon, min_lat, max_lon, max_lat)
+    # check the bbox is sane
+    unless min_lon <= max_lon
+      raise("The minimum longitude must be less than the maximum longitude, but it wasn't")
+    end
+    unless min_lat <= max_lat
+      raise("The minimum latitude must be less than the maximum latitude, but it wasn't")
+    end
+    unless min_lon >= -180 && min_lat >= -90 && max_lon <= 180 && max_lat <= 90
+      raise("The latitudes must be between -90 and 90, and longitudes between -180 and 180")
+    end
+
+    # check the bbox isn't too large
+    requested_area = (max_lat-min_lat)*(max_lon-min_lon)
+    if requested_area > APP_CONFIG['max_request_area']
+      raise("The maximum bbox size is " + APP_CONFIG['max_request_area'].to_s + 
+        ", and your request was too large. Either request a smaller area, or use planet.osm")
     end
+  end
 end