【发布时间】:2017-09-05 23:46:46
【问题描述】:
我不知道这到底是怎么回事,但我根本想不通。
所以我有这个代码:
from model.Formulas import Formulas
f = open("coords_data.txt", "r")
line1 = f.readline()
line2 = f.readline()
orig = line1.split(';')
dest = line2.split(';')
origin = (orig[0] + ", " + orig[1].strip("\n"))
destination = (dest[0] + ", " + dest[1].strip("\n"))
print("Orig: " + str(origin))
print("Dest: " + str(destination))
total_dist = Formulas.calculateDistance(str(origin), str(destination))
# Formulas.calculateDistance()
然后导入代码是这样的:
import math
class Formulas:
# 3959 # radius of the great circle in miles...some algorithms use 3956
# 6371 # radius in kilometers...some algorithms use 6367
# 3959 * 5280 # radius in feet
# 6371 * 1000 # radius in meters
@staticmethod
def calculateDistance(origin, destination, rounding=0):
lat1, lon1 = origin
lat2, lon2 = destination
radius = 6371 # km
dlat = math.radians(lat2 - lat1)
dlon = math.radians(lon2 - lon1)
a = math.sin(dlat / 2) * math.sin(dlat / 2) + math.cos(math.radians(lat1)) * math.cos(math.radians(lat2)) * math.sin(dlon / 2) * math.sin(dlon / 2)
c = 2 * math.atan2(math.sqrt(a), math.sqrt(1 - a))
d = radius * c
return round(d, rounding)
所以现在我想从一个大的坐标列表(5057 行)中获取确切的总距离。所以它需要计算距离之间的所有差异并返回一个大数字(例如150km)。
我得到的错误是:
ValueError:解包的值太多(预计 2 个)
文件中的坐标如下所示:
5114.8268;00457.9847
5114.8271;00457.9845
5114.8271;00457.9845
5114.8271;00457.9845
5114.8270;00457.9846
5114.8271;00457.9846
5114.8272;00457.9847
5114.8272;00457.9847
5114.8274;00457.9843
5114.8272;00457.9846
5114.8274;00457.9843
5114.8277;00457.9837
5114.8287;00457.9835
5114.8274;00457.9843
5114.8288;00457.9831
5114.8287;00457.9835
5114.8286;00457.9813
5114.8274;00457.9843
5114.8287;00457.9815
5114.8286;00457.9813
5114.8270;00457.9846
5114.8286;00457.9813
5114.8355;00457.9784
5114.8292;00457.9814
5114.8274;00457.9843
5114.8376;00457.9776
5114.8395;00457.9769
它现在在一个文件中,但这些数据将存储在一个数据库中。
我该如何解决这个问题?我应该如何摆脱这个错误?
【问题讨论】:
-
什么错误?你能举一些简单的输入/输出与预期输出的例子吗?
-
已更新。抱歉,忘记写错了。
标签: python python-3.x gps coordinates