- def map
- GC.start
- @@count+=1
- # Figure out the bbox
- bbox = params['bbox']
-
- unless bbox and bbox.count(',') == 3
- # alternatively: report_error(TEXT['boundary_parameter_required']
- report_error("The parameter bbox is required, and must be of the form min_lon,min_lat,max_lon,max_lat")
- return
- end
-
- bbox = bbox.split(',')
-
- min_lon, min_lat, max_lon, max_lat = sanitise_boundaries(bbox)
-
- # check boundary is sane and area within defined
- # see /config/application.yml
- begin
- check_boundaries(min_lon, min_lat, max_lon, max_lat)
- rescue Exception => err
- report_error(err.message)
- return
- end
-
- @nodes = Node.find_by_area(min_lat, min_lon, max_lat, max_lon, :conditions => "visible = 1", :limit => APP_CONFIG['max_number_of_nodes']+1)
- # get all the nodes, by tag not yet working, waiting for change from NickB
- # need to be @nodes (instance var) so tests in /spec can be performed
- #@nodes = Node.search(bbox, params[:tag])
-
- node_ids = @nodes.collect(&:id)
- if node_ids.length > APP_CONFIG['max_number_of_nodes']
- report_error("You requested too many nodes (limit is 50,000). Either request a smaller area, or use planet.osm")
- return
- end
- if node_ids.length == 0
- render :text => "<osm version='#{API_VERSION}'></osm>", :content_type => "text/xml"
- return
- end
-
- doc = OSM::API.new.get_xml_doc
-
- # add bounds
- bounds = XML::Node.new 'bounds'
- bounds['minlat'] = min_lat.to_s
- bounds['minlon'] = min_lon.to_s
- bounds['maxlat'] = max_lat.to_s
- bounds['maxlon'] = max_lon.to_s
- doc.root << bounds
-
- # get ways
- # find which ways are needed
- ways = Array.new
- if node_ids.length > 0
- way_nodes = WayNode.find_all_by_node_id(node_ids)
- way_ids = way_nodes.collect { |way_node| way_node.id[0] }
- ways = Way.find(way_ids)
-
- list_of_way_nodes = ways.collect { |way|
- way.way_nodes.collect { |way_node| way_node.node_id }
- }
- list_of_way_nodes.flatten!
-