refactoring to remove road-agent dependency

.gitignore

@@ -0,0 +1,111 @@
+*.pickle
+
+brouter
+
+.\#*
+
+\#*\#
+
+*~
+
+# Byte-compiled / optimized / DLL files
+__pycache__/
+*.py[cod]
+*$py.class
+
+# C extensions
+*.so
+
+# Distribution / packaging
+.Python
+env/
+build/
+develop-eggs/
+dist/
+downloads/
+eggs/
+.eggs/
+lib/
+lib64/
+parts/
+sdist/
+var/
+wheels/
+*.egg-info/
+.installed.cfg
+*.egg
+
+# PyInstaller
+#  Usually these files are written by a python script from a template
+#  before PyInstaller builds the exe, so as to inject date/other infos into it.
+*.manifest
+*.spec
+
+# Installer logs
+pip-log.txt
+pip-delete-this-directory.txt
+
+# Unit test / coverage reports
+htmlcov/
+.tox/
+.coverage
+.coverage.*
+.cache
+nosetests.xml
+coverage.xml
+*.cover
+.hypothesis/
+
+# Translations
+*.mo
+*.pot
+
+# Django stuff:
+*.log
+local_settings.py
+
+# Flask stuff:
+instance/
+.webassets-cache
+
+# Scrapy stuff:
+.scrapy
+
+# Sphinx documentation
+docs/_build/
+
+# PyBuilder
+target/
+
+# Jupyter Notebook
+.ipynb_checkpoints
+
+# pyenv
+.python-version
+
+# celery beat schedule file
+celerybeat-schedule
+
+# SageMath parsed files
+*.sage.py
+
+# dotenv
+.env
+
+# virtualenv
+.venv
+venv/
+ENV/
+
+# Spyder project settings
+.spyderproject
+.spyproject
+
+# Rope project settings
+.ropeproject
+
+# mkdocs documentation
+/site
+
+# mypy
+.mypy_cache/

model.py

@@ -3,11 +3,12 @@ Object-Document Map for bike model
 """
 from mongoengine import Document, DateTimeField, GeoPointField, \
     FloatField, connection
-from road_agent import Agent
 import datetime
-from LatLon import LatLon, Latitude, Longitude
+from LatLon23 import LatLon, Latitude, Longitude
+from geopy import distance
 
 
+# TODO: instead of centroid use speed and bearing of flockers to create a vector, point rider towards it
 class Flock:
     """
     Flock object is created from a list of agents
@@ -43,36 +44,46 @@ class Bike(Document):
 
     def __init__(self, *args, **kwargs):
         super(Document, self).__init__(*args, **kwargs)
-
-        self.agent = Agent(point=LatLon(self.point[1],
-                                        self.point[0]),
-                           dest=LatLon(self.destination[1],
-                                       self.destination[0]),
-                           router=None)
-
         self.db = connection.get_db()
 
-    def update(self, lat, lon):
+    def update(self, lat, lon, speed, bearing):
         self.point = (lon, lat)
-
+        self.speed = speed
-        tdelta = datetime.datetime.now() - self.last_update
+        self.bearing = bearing
-        seconds = tdelta.total_seconds()
-        new_point = LatLon(Latitude(lat), Longitude(lon))
-        distance = abs(self.agent.point().distance(new_point)) / 1000.0
-        self.agent.update(new_point)
-
-        self.speed = distance / seconds
         self.save()
 
+    def heading_to(self, point):
+        s = LatLon(Latitude(self.point[1]), Longitude(self.point[0]))
+        t = LatLon(Latitude(point[1]), Longitude(point[0]))
+        return s.heading_initial(t)
+
+    def distance_to(self, point):
+        return distance.geodesic(self.get_point(),
+                                 (point[1],
+                                  point[0])).meters
+
+
+    def get_point(self):
+        return (self.point[1],
+                self.point[0])
+
+    def get_dest(self):
+        return (self.destination[1],
+                self.destination[0])
+
+
     def find_flock(self, point_altruism=0.1, dest_altruism=0.2):
         """
         :return: list of Bike objects
         """
 
-        voyage_len = self.agent.distance_to(self.agent.destination())
+        trip_len = distance.geodesic(self.get_point(), self.get_dest()).meters
 
-        local_radius = voyage_len * point_altruism
+        local_radius = trip_len * point_altruism
-        destination_radius = voyage_len * dest_altruism
+        destination_radius = trip_len * dest_altruism
+
+
+        # TODO: filter by timestamp
 
         # these are bikes around me
         local = [bike for bike in
@@ -105,10 +116,11 @@ class Bike(Document):
         """
         flock = Flock(self.find_flock())
         if flock.size > 1:  # no flocking with self!
-            return {'flock_heading': self.agent.heading_to(flock.centroid),
+            flock_heading: self.heading_to(flock.centroid)
-                    'flock_distance': self.agent.distance_to(flock.centroid),
+            flock_distance: distance.geodesic(self.point, self.destination).meters
+            return {'flock_heading': flock_heading,
+                    'flock_distance': flock_distance,
                     'flock_avg_speed': flock.mean_speed,
                     'flock_size': flock.size}
         else:
             return {}
-

requirements.txt

@@ -1,3 +1,4 @@
 flask
 flask-mongoengine
-road-agent==0.0.3
+LatLon23
+geopy

server.py

@@ -8,6 +8,7 @@ app = Flask(__name__)
 db = MongoEngine(app)
 
 
+# TODO: at registration give current location
 @app.route("/register/")
 def register():
     dest_lat = request.args.get('dest_lat', None)
@@ -25,6 +26,7 @@ def register():
     return jsonify(bike_id=str(bike.id))
 
 
+# TODO: recieve gps bearing and speed
 @app.route("/update/<bike_id>/")
 def update(bike_id):
 
@@ -32,11 +34,13 @@ def update(bike_id):
 
     lat = float(request.args.get('lat', None))
     lon = float(request.args.get('lon', None))
+    speed = float(request.args.get('speed', None))
+    bearing = float(request.args.get('bearing', None))
 
-    bike.update(lat, lon)
     
+    bike.update(lat, lon, speed, bearing)
     return jsonify(
-        dest_heading=bike.agent.heading_to(bike.agent.destination()),
+        dest_heading=bike.heading_to(bike.destination),
-        dest_distance=bike.agent.distance_to(bike.agent.destination()),
+        dest_distance=bike.distance_to(bike.destination),
         speed=bike.speed,
         **bike.flock_data())