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, 87 insertions, 0 deletions

diff --git a/chimere/route.py b/chimere/route.py
new file mode 100644
index 0000000..efc6763
--- /dev/null
+++ b/chimere/route.py
@@ -0,0 +1,87 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+# Copyright (C) 2012  Étienne Loks  <etienne.loks_AT_peacefrogsDOTnet>
+#
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as
+# published by the Free Software Foundation, either version 3 of the
+# License, or (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+# See the file COPYING for details.
+
+"""
+Routing management
+"""
+
+import os, re, shutil, tempfile
+from BeautifulSoup import BeautifulSoup
+from subprocess import Popen, PIPE
+from django.contrib.gis.gdal import DataSource
+
+from django.conf import settings
+
+class Router:
+    def route(self, lon1, lat1, lon2, lat2, transport='foot'):
+        '''
+        Get a list of geojson polylines
+        '''
+        return []
+
+class RoutinoRouter(Router):
+    re_desc = [re.compile("<tr class='n'>"), re.compile("<tr class='s'>"),
+               re.compile("<tr class='t'>")]
+    def route(self, lon1, lat1, lon2, lat2, session_id='', transport='foot'):
+        '''
+        Get a list of geojson polylines and route description
+        '''
+        language = settings.LANGUAGE_CODE.split('-')[0]
+        args = [settings.CHIMERE_ROUTING_ENGINE['PATH'],
+                "--dir=%s" % settings.CHIMERE_ROUTING_ENGINE['DB_PATH'],
+                "--transport=%s" % transport,
+                "--language=%s" % language,
+                "--shortest",
+                "--output-html",
+                "--output-gpx-track",
+                "--lat1=%0.15f" % lat1,
+                "--lon1=%0.15f" % lon1,
+                "--lat2=%0.15f" % lat2,
+                "--lon2=%0.15f" % lon2
+                ]
+        tmp_dir = tempfile.mkdtemp(prefix='chimere_') + os.sep
+        p = Popen(args, stdout=PIPE, cwd=tmp_dir)
+        p.communicate()
+        ds = DataSource(tmp_dir + 'shortest-track.gpx')
+        if not ds:
+            return [], None
+        layer = ds[0]
+        trk_layer = None
+        for layer in ds:
+            if layer.name == 'tracks':
+                trk_layer = layer
+                break
+        multilines = trk_layer.get_geoms()
+        res = []
+        for multiline in multilines:
+            res += [geom.geojson for geom in multiline]
+        desc = ['<table>']
+        # only keeping interessant lines of the desc
+        for line in open(tmp_dir + 'shortest.html').readlines():
+            if [True for r in self.re_desc if r.match(line)]:
+                desc.append(BeautifulSoup(line).prettify())
+        desc.append('</table>')
+        desc = BeautifulSoup('\n'.join(desc)).prettify()
+        shutil.rmtree(tmp_dir)
+        return res, desc
+router = None
+if settings.CHIMERE_ROUTING_ENGINE['ENGINE'] == 'routino':
+    router = RoutinoRouter()
+