def do_routing(request, response):
# get request parameters
from_location = maps.GeoPoint(*[float(x) for x in request.get('from').split(',')])
to_location = maps.GeoPoint(*[float(x) for x in request.get('to').split(',')])
view_mode = request.get('out', 'html')
# produce data
data = router.get_route(from_location, to_location)
# populate the requested view
if view_mode == 'json':
view.to_json(data, response)
else:
view.to_html(data, 'routing', request, response)
def get_subway_route(start_location, end_location):
route = router.get_route(start_location, end_location)
if route == None:
return None
steps = []
first_subway = True
for index, leg in enumerate(route):
if leg.transport == 'Subway':
if index > 0:
if first_subway:
to_text = 'Walk to subway station ' + utils.subway_color(leg.steps[0].station.name, leg.line)
walk_time = max(int((leg.steps[0].distance + 30) / 60), 3)
step = RouteStep(to_text, walk_time, utils.duration_to_string(walk_time),
None, steps[-1].end_location,
GeoPoint(leg.steps[0].station.lat, leg.steps[0].station.lng), True)
else:
to_text = 'Change to ' + utils.subway_color('line ' + str(leg.line), leg.line) + ' station ' + utils.subway_color(leg.steps[0].station.name, leg.line)
change_time = max(int((leg.steps[0].distance + 30) / 60), 3)
step = RouteStep(to_text, change_time, utils.duration_to_string(change_time))
steps.append(step)
if first_subway:
step = RouteStep('Buy the tokens if needed and enter subway station ' + utils.subway_color(leg.steps[0].station.name, leg.line),
5, utils.duration_to_string(5) + ', ' + utils.price_to_string(27), Transport('Subway', price = 27),
GeoPoint(leg.steps[0].station.lat, leg.steps[0].station.lng)) #start location is needed for start walk
steps.append(step)
first_subway = False
if len(leg.steps) > 1: # The change might be the first move => don't add a 0 steps way
step = RouteStep()
step.direction = 'Subway ' + utils.subway_color('line ' + str(leg.line), leg.line) + ' to ' + utils.subway_color(leg.steps[-1].station.name, leg.line)
step.duration = int((sum([x.distance for x in leg.steps[1:]]) + 30) / 60)
step.addinfo = utils.duration_to_string(step.duration) + ', ' + str(len(leg.steps) - 1) + ' stops'
step.transport = Transport(leg.transport)
step.start_location = GeoPoint(leg.steps[0].station.lat, leg.steps[0].station.lng)
step.end_location = GeoPoint(leg.steps[-1].station.lat, leg.steps[-1].station.lng)
step.has_map = True
steps.append(step)
else:
if index > 0:
to_text = 'Walk to ' + str(leg.transport).lower() + ' stop ' + leg.steps[0].station.name
walk_time = max(int((leg.steps[0].distance + 30) / 60), 3)
step = RouteStep(to_text, walk_time, utils.duration_to_string(walk_time),
None, steps[-1].end_location,
GeoPoint(leg.steps[0].station.lat, leg.steps[0].station.lng), True)
steps.append(step)
step = RouteStep()
step.direction = leg.transport + ' ' + str(leg.line) + ' to ' + utils.subway_color(leg.steps[-1].station.name, leg.line)
step.duration = sum([x.distance for x in leg.steps[1:]]) / 60
step.addinfo = utils.duration_to_string(step.duration) + ', ' + utils.price_to_string(23)
step.transport = Transport(leg.transport, price = 23)
step.start_location = GeoPoint(leg.steps[0].station.lat, leg.steps[0].station.lng)
step.end_location = GeoPoint(leg.steps[-1].station.lat, leg.steps[-1].station.lng)
step.has_map = True
steps.append(step)
start_walk = get_walking_route(start_location, steps[0].start_location)
if start_walk.get_duration() > 0:
steps.insert(0, start_walk.directions[0])
end_walk = get_walking_route(steps[-1].end_location, end_location)
if end_walk.get_duration() > 0:
steps.append(end_walk.directions[0])
if start_walk.get_duration() + end_walk.get_duration() < 40:
return Route(steps)
