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latlng.py
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latlng.py
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import sys
import logging
import numpy as np
from flask import Flask, request, jsonify, make_response, current_app, \
render_template
from datetime import datetime
from bus import bus
from flask.ext.cors import CORS
app = Flask(__name__)
app._static_folder = 'static'
app.logger.addHandler(logging.StreamHandler(sys.stdout))
app.logger.setLevel(logging.ERROR)
cors = CORS(app, resources={r"/latlng/*": {"origins": "*"}})
bus_stops = {'10813': [-0.0984574616503, 51.3760929581],
'1164': [-0.118444497979, 51.4013254207],
'1441': [-0.111505659588, 51.3886330116],
'14622': [-0.11532824762, 51.4624163884],
'15100': [-0.127886565845, 51.4190123595],
'15101': [-0.123989076582, 51.4147954483],
'15102': [-0.121592866634, 51.4076438324],
'15104': [-0.11950429888, 51.4038783631],
'15105': [-0.119676700562, 51.4045826277],
'15106': [-0.114913800215, 51.3952345961],
'15107': [-0.11553210181, 51.3969801748],
'15108': [-0.112343246015, 51.3902831629],
'15110': [-0.109847701645, 51.3852700354],
'15111': [-0.109810411684, 51.3854762071],
'15112': [-0.105002557406, 51.3804435319],
'15113': [-0.105543171573, 51.3812706486],
'15600': [-0.116078634973, 51.397672392],
'15601': [-0.116431491604, 51.3985323057],
'15602': [-0.124338321212, 51.4143423641],
'1764': [-0.125571969079, 51.4407824751],
'1832': [-0.126152002196, 51.4171141625],
'1833': [-0.125982517711, 51.4166888287],
'233': [-0.115405856121, 51.4615812932],
'2395': [-0.118310807164, 51.457104709],
'2396': [-0.117290454148, 51.4584641623],
'2397': [-0.124384026922, 51.4469504235],
'2398': [-0.124206586829, 51.4470645447],
'2403': [-0.128448107265, 51.4344886475],
'2404': [-0.128107076231, 51.4347350132],
'24404': [-0.12409794984, 51.4128368122],
'24458': [-0.116683862902, 51.4599112545],
'25666': [-0.124897330957, 51.4428490159],
'25856': [-0.12627682548, 51.4393819467],
'25860': [-0.1314, 51.426],
'25865': [-0.122319240572, 51.4099216073],
'25866': [-0.111045335869, 51.3868990349],
'26408': [-0.113722710611, 51.4653940474],
'26981': [-0.114139104884, 51.3930998309],
'27495': [-0.124399192964, 51.4420136921],
'29450': [-0.125973752929, 51.4394040719],
'3019': [-0.127855814657, 151.4359540074],
'34317': [-0.0986220007597, 51.376976935],
'35036': [-0.1299838254, 51.4240098003],
'36915': [-0.128187303962, 51.4359413214],
'37002': [-0.113524828085, 51.3923076216],
'43': [-0.124782872705, 51.4445917934],
'4417': [-0.108429081989, 51.3837723074],
'4418': [-0.106964468152, 51.3826965352],
'4419': [-0.117691517968, 51.4004050565],
'4420': [-0.103303433434, 51.3787883688],
'4425': [-0.123025903584, 51.4109221979],
'464': [-0.127301848973, 51.4371861452],
'466': [-0.128852152236, 51.4323458454],
'468': [-0.130952681759, 51.4284676051],
'4725': [-0.118725410395, 51.4561221893],
'474': [-0.128477004147, 51.4211081165],
'4865': [-0.128976847939, 51.4328154988],
'4868': [-0.128833763159, 51.4211767434],
'705': [-0.123659830764, 51.4488182923],
'706': [-0.123845244639, 51.4488572201],
'707': [-0.122142349293, 51.4510780932],
'708': [-0.121203336418, 51.4522141324],
'709': [-0.120004667886, 51.4540653832],
'710': [-0.120066199108, 51.4543181809],
'716': [-0.130636110595, 51.425297155],
'807': [-0.114806220068, 151.3954037676],
'BP1549': [-0.0991418093016, 51.3724080241],
'BP1916': [-0.1005239738295, 51.3782397996],
'BP2000': [-0.103297530305, 51.3785814995],
'BP2081': [-0.1008475, 51.3734371],
'R0417': [-0.124564874379, 51.4442915445],
'R0525': [-0.112693017733, 51.3912150509],
'R0543': [-0.121741799303, 51.4082217658],
'R0852': [-0.101373059522, 51.3792517406],
'SL33': [-0.0979575459402, 51.3735938459],
'SL37': [-0.131136553845, 51.4285424576]
}
bus_stops_cors = bus_stops.values()
class LatLng:
def __init__(self, lat, lng, weight):
self.lat = lat
self.lng = lng
self.weight = weight
def serialize(self):
return {
'lat': self.lat,
'lng': self.lng,
'weight': self.weight
}
def get_latlng(start_datetime, end_datetime):
# get bus stops' busyness
normalize_factor = 1
time_map = np.load("data/Route-109-2014-05-BS-index.npy").item()
mat = np.load("data/Route-109-2014-05-BS-occupation.npy")
bus_stops_busyness = (bus.get_heat_map(time_map, mat, start_datetime,
end_datetime) * normalize_factor).tolist()
stop_busy_dict = dict(zip(bus_stops, bus_stops_busyness))
return stop_busy_dict
@app.route('/latlng/')
def latlng():
start_datetime_str = request.args.get('starttime')
end_datetime_str = request.args.get('endtime')
start_datetime = datetime.fromtimestamp(int(start_datetime_str))
end_datetime = datetime.fromtimestamp(int(end_datetime_str))
latlngs = []
stop_busy_dict = get_latlng(start_datetime, end_datetime)
for bus_stop, busyness in stop_busy_dict.items():
lng = bus_stops[bus_stop][0]
lat = bus_stops[bus_stop][1]
weight = busyness
latlng = LatLng(lat, lng, weight)
latlngs.append(latlng.serialize())
return jsonify(
{
'latlngs': latlngs,
}
)
@app.route('/')
def index():
return render_template('index.html')
# return app.send_static_file('index.html')
if __name__ == '__main__':
app.run(debug=True)