def proc_time(df, para='s'):
num_item = len(df)
if para == 's':
travel = s_shape(df)
else:
travel = opt_best(df)
pt = 3 + num_item / 4 + travel / 20
# center = (np.mean(df['aisle']), np.mean(df['position']))
return pd.Series({'weight': num_item, 'pt': pt})
def routing_time(self, df_items, para='s'):
batch_orders = df_items[df_items['order'].isin(self.orders)]
num_item = len(batch_orders)
if para == 's':
travel = s_shape(batch_orders) # 可以改进成启发式策略？？
else:
travel = opt_best(batch_orders)
if travel == 0:
self.pt = 0
else:
self.pt = 3 + num_item / 4 + travel / 20