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weights.py
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import json
import math
import yaml
from pathlib import Path
from wgs2km import get_degree_len
root = Path(__file__).resolve().parent
with open(root / 'hyp.yaml', errors='ignore') as f:
hyp = yaml.safe_load(f)
with open('stationHallmark.json', 'r') as f:
stationHallmark=json.load(f)
def get_distance(long1, lat1, long2, lat2, direct=True):
long_degree, lat_degree = get_degree_len(lat1)
delta_x = long_degree * abs(long1 - long2)
delta_y = lat_degree * abs(lat1 - lat2)
return math.sqrt(delta_x**2 + delta_y**2) if direct else delta_x+delta_y
def distance_weight(stationIndex1, stationIndex2):
long1, lat1 = stationHallmark[stationIndex1][2]
long2, lat2 = stationHallmark[stationIndex2][2]
if stationHallmark[stationIndex1][4] == 'subway':
if stationHallmark[stationIndex2][4] == 'subway':
if stationHallmark[stationIndex1][3] != stationHallmark[stationIndex1][3]:#MM-trans
return hyp['distance_mm_trans']
else:#MM-go
return get_distance(long1, lat1, long2, lat2)
else:#MB-trans
return get_distance(long1, lat1, long2, lat2, False) + hyp['distance_bm_trans']
else:
if stationHallmark[stationIndex2][4] == 'subway':#BM-trans
return get_distance(long1, lat1, long2, lat2, False) + hyp['distance_bm_trans']
else:
if stationHallmark[stationIndex1][3] == stationHallmark[stationIndex2][3]:#BB-go
return get_distance(long1, lat1, long2, lat2, False)
else:#BB-trans
return get_distance(long1, lat1, long2, lat2, False)
def time_weight(stationIndex1, stationIndex2):
long1, lat1 = stationHallmark[stationIndex1][2]
long2, lat2 = stationHallmark[stationIndex2][2]
if stationHallmark[stationIndex1][4] == 'subway':
if stationHallmark[stationIndex2][4] == 'subway':
if stationHallmark[stationIndex1][3] != stationHallmark[stationIndex1][3]:#MM-trans
return hyp['time_mm_trans']
else:#MM-go
return get_distance(long1, lat1, long2, lat2) / hyp['velocity_metro'] + hyp['time_mm_go']
else:#MB-trans
return get_distance(long1, lat1, long2, lat2, False) / hyp['velocity_feet'] + hyp['time_mb_trans']
else:
if stationHallmark[stationIndex2][4] == 'subway':#BM-trans
return get_distance(long1, lat1, long2, lat2, False) / hyp['velocity_feet'] + hyp['time_bm_trans']
else:
if stationHallmark[stationIndex1][3] == stationHallmark[stationIndex2][3]:#BB-go
return get_distance(long1, lat1, long2, lat2, False) / hyp['velocity_bus'] + hyp['time_bb_go']
else:#BB-trans
return get_distance(long1, lat1, long2, lat2, False) / hyp['velocity_feet'] + hyp['time_bb_trans']
def cost_weight(stationIndex1, stationIndex2):
# long1, lat1 = stationHallmark[stationIndex1][2]
# long2, lat2 = stationHallmark[stationIndex2][2]
if stationHallmark[stationIndex1][4] == 'subway':
if stationHallmark[stationIndex2][4] == 'subway':
if stationHallmark[stationIndex1][3] != stationHallmark[stationIndex1][3]:#MM-trans
return hyp['cost_mm_trans']
else:#MM-go
return hyp['cost_mm_go']
else:#MB-trans
return hyp['cost_mb_trans']
else:
if stationHallmark[stationIndex2][4] == 'subway':#BM-trans
return hyp['cost_bm_trans']
else:
if stationHallmark[stationIndex1][3] == stationHallmark[stationIndex2][3]:#BB-go
return hyp['cost_bb_go']
else:#BB-trans
return hyp['cost_bb_trans']
# def future_weight(stationIndex1, stationIndex2):
# long1, lat1 = stationHallmark[stationIndex1][2]
# long2, lat2 = stationHallmark[stationIndex2][2]
# if stationHallmark[stationIndex1][4] == 'subway':
# if stationHallmark[stationIndex2][4] == 'subway':
# if stationHallmark[stationIndex1][3] != stationHallmark[stationIndex1][3]:#MM-trans
# return
# else:#MM-go
# return
# else:#MB-trans
# return
# else:
# if stationHallmark[stationIndex2][4] == 'subway':#BM-trans
# return
# else:
# if stationHallmark[stationIndex1][3] == stationHallmark[stationIndex2][3]:#BB-go
# return
# else:#BB-trans
# return
if __name__=='__main__':
# stationHallmark = stationHallmark[0]
# print(stationHallmark['1'])
print(stationHallmark['1'], stationHallmark['2'])
print(distance_weight('1','2'))
print(time_weight('1','2'))
print(cost_weight('1','2'))