First working version of routing.

* add an utilitary Routing class to manage different routing system
* implement the routing with routino
* add a view to manage routes
* itinerary panel template
* JS management of routing:
  * manage flag markers on the map
  * request the route when start and finish flag are set
  * display the route and the itinerary description
* add of two flags images
* itinerary panel CSS
* french translation update

1 files changed, 21 insertions, 0 deletions

diff --git a/chimere/views.py b/chimere/views.py
index f61e209..ad4b0ca 100644
--- a/chimere/views.py
+++ b/chimere/views.py
@@ -26,6 +26,7 @@ Views of the project
 
 import datetime
 from itertools import groupby
+import simplejson
 
 from django.conf import settings
 from django.core import serializers
@@ -49,6 +50,8 @@ from chimere.forms import MarkerForm, RouteForm, ContactForm, FileForm, \
      FullFileForm, MultimediaFileFormSet, PictureFileFormSet, notifySubmission,\
      notifyStaff, AreaForm
 
+from chimere.route import router
+
 def get_base_uri(request):
     base_uri = 'http://'
     if 'HTTP_REFERER' in request.META:
@@ -635,6 +638,24 @@ def redirectFromTinyURN(request, area_name='', tiny_urn=''):
         return redir
     return HttpResponseRedirect(response_dct['extra_url'] + parameters)
 
+def route(request, area_name, lon1, lat1, lon2, lat2, transport='foot'):
+    '''
+    Get the JSON for a route
+    '''
+    try:
+        lon1, lat1 = float(lon1), float(lat1)
+        lon2, lat2 = float(lon2), float(lat2)
+    except ValueError:
+        return HttpResponse('no results')
+    jsons, desc = router.route(lon1, lat1, lon2, lat2, transport=transport,
+                         session_id=request.session.session_key)
+    if not jsons:
+        return HttpResponse('no results')
+    jsonencoder = simplejson.JSONEncoder()
+    data = '{"properties":{"description":%s}, "type": "FeatureCollection",'\
+           '"features":[%s]}' % (jsonencoder.encode(desc), ",".join(jsons))
+    return HttpResponse(data)
+
 def rss(request, area_name=''):
     '''
     Redirect to RSS subscription page