various bits

app/controllers/api_controller.rb

@@ -1,7 +1,26 @@
 class ApiController < ApplicationController
 
   def map
+    bbox = params['bbox']
+    unless bbox and bbox.count(',') == 3
+      render :nothing => true, :status => 400
+      return
+    end
 
+    bbox = bbox.split(',')
+
+    min_lat = bbox[0].to_f
+    min_lon = bbox[1].to_f
+    max_lat = bbox[2].to_f
+    max_lon = bbox[3].to_f
+
+    nodes = Node.find(:all, :conditions => ['latitude > ? AND longitude > ? AND latitude < ? AND longitude < ? AND visible = 1', min_lat, min_lon, max_lat, max_lon])
+
+    node_ids = "(#{nodes.collect {|node| node.id }})"
+
+    segments = Segment.find(:all, :condtions => ['node_a in ? or node_b in ?', node_ids, node_ids])
+    render :text => node_ids.join(',')
+    return
 
     doc = XML::Document.new
     doc.encoding = 'UTF-8' 
@@ -22,6 +41,4 @@ class ApiController < ApplicationController
     #root << el1
   end
 
-
-
 end

app/controllers/node_controller.rb

@@ -15,6 +15,7 @@ class NodeController < ApplicationController
 
       if node
         node.user_id = @user.id
+        node.visible = 1
         if node.save_with_history
           render :text => node.id
         else