def get_driving_path_length_list(self, driving_area):
driving_length = {}
for i in range(len(driving_area)):
length = len(driving_area[i])
path_length_sum = 0
if(length>1):
start_index = driving_area[i][0]
end_index = driving_area[i][length-1]
if(end_index!=self.column_length):
end_index = end_index+1
valid_point_list = []
for j in range(start_index, end_index):
if(self.__is_valid_data(j)):
valid_point_list.append(j)
for j in range(len(valid_point_list)):
if(j>0):
start_lon = float(self.ws['D' + str(valid_point_list[j-1])].value)
start_lat = float(self.ws['E' + str(valid_point_list[j-1])].value)
end_lon = float(self.ws['D' + str(valid_point_list[j])].value)
end_lat = float(self.ws['E' + str(valid_point_list[j])].value)
dist = calc_distance(start_lon, start_lat, end_lon, end_lat)
path_length_sum = path_length_sum+dist
driving_length[i] = path_length_sum
return driving_length
def __is_valid_dist_interval(self, index_list):#if max distance bigger than 3km max_dist = 0 for i in index_list: for j in index_list: lon1 = float(self.ws['D' + str(i)].value) lat1 = float(self.ws['E' + str(i)].value) lon2 = float(self.ws['D' + str(j)].value) lat2 = float(self.ws['E' + str(j)].value) dist = calc_distance(lon1, lat1, lon2, lat2) if(dist>max_dist): max_dist = dist if(max_dist>DIST_THRESHOLD): return False return True
def get_car_stop_area(self, speed_zero_index_list):#return the car stop area row lists
icount = 0
car_stop_area = {}
car_stop_list = []
for i in range(len(speed_zero_index_list)):
if(i<len(speed_zero_index_list)-1):
lon1 = float(self.ws['D' + str(speed_zero_index_list[i])].value)
lat1 = float(self.ws['E' + str(speed_zero_index_list[i])].value)
lon2 = float(self.ws['D' + str(speed_zero_index_list[i+1])].value)
lat2 = float(self.ws['E' + str(speed_zero_index_list[i+1])].value)
dist = calc_distance(lon1, lat1, lon2, lat2)
if(dist<AREA_DIST_THRESHOLD):
car_stop_list.append(speed_zero_index_list[i])
else:
car_stop_list.append(speed_zero_index_list[i])
car_stop_area[icount] = car_stop_list
car_stop_list = []
icount = icount + 1
return car_stop_area
def get_driving_ave_speed(self, driving_area):
driving_area_ave_speed = {}
for i in range(len(driving_area)):
j = driving_area[i][0]
path_sum = 0
time_sum = 0
while(j<=driving_area[i][1]):
if(j<self.column_length and self.__is_valid_data(j) and self.__is_valid_data(j+1)):
lon_start = float(self.ws['D' + str(j)].value)
lat_start = float(self.ws['E' + str(j)].value)
lon_end = float(self.ws['D' + str(j+1)].value)
lat_end = float(self.ws['E' + str(j+1)].value)
path = calc_distance(lon_start, lat_start, lon_end, lat_end)
path_sum = path_sum + path
start_time = str(self.ws['I' + str(j)].value)
end_time = str(self.ws['I' + str(j+1)].value)
interval = (datetime.strptime(end_time, '%Y-%m-%d %H:%M:%S')-datetime.strptime(start_time, '%Y-%m-%d %H:%M:%S')).seconds/(60*60)
time_sum = time_sum + interval
j = j+1
driving_area_ave_speed[i] = path_sum/time_sum
return driving_area_ave_speed
def test(): distance = calc_distance(121.306216, 31.353354, 121.185040, 31.405485) print(distance)#km