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所以我有一个代码给予每个数据集的名称
print
latOne = dL[1][3]
lonOne = dL [1][4]
x = [calculateDistance(latOne, lonOne, latTwo, lonTwo) for latTwo, lonTwo in zip(latitude, longitude)]
print x
这产生列表中的距离值与所述输出
[0.0, 3043.004178666758, 21558.2996208357, 40246.748450913066, 40908.82213277263, 43786.0579097594, 67781.1426515405, 79693.11338661514, 65046.35819797423, 92804.01912347642]
现在每个距离是基于从一个单独的点坐标(其中有一个定义的名称) 即
Sydney (-20.7, 100)
Melbourne (-20, 120)
所以我的代码需要的距离确定并产生距离列表。我想要做的是设置结构,以便使用相关的点名打印距离。即采取LAT和悉尼多头计算距离,然后让输出中是
Distance to Syndey is output ..., Distance to Melbourne is output, and so on.
如果u需要我更多的代码,以帮助请让我知道。
编辑:
这里是完整的脚本代码。
import math
import csv
def calculateDistance(latOne, lonOne, latTwo, lonTwo):
from decimal import Decimal
latOne, lonOne, latTwo, lonTwo = [Decimal(x) for x in (latOne, lonOne, latTwo,lonTwo)]
DISTANCE_CONSTANT = 111120.0
coLat = math.fabs(lonOne - lonTwo)
alpha = 90 - latTwo
beta = 90 - latOne
cosAlpha = math.cos(math.radians(alpha))
cosBeta = math.cos(math.radians(beta))
sinAlpha = math.sin(math.radians(alpha))
sinBeta = math.sin(math.radians(beta))
cosC = math.cos(math.radians(coLat))
cos_of_angle_a = (cosAlpha * cosBeta)
cos_of_angle_b = (sinAlpha * sinBeta * cosC)
cos_of_angle_c = cos_of_angle_a + cos_of_angle_b
angle = math.degrees(math.acos(cos_of_angle_c))
distance = angle * DISTANCE_CONSTANT
return distance
stations = []
latitude = []
longitude = []
with open('data.csv', 'rU') as input:
dL= list(csv.reader(input))
sL = [row[4] for row in dL[1:]]
longitude.extend(sL)
sL1 = [row[3] for row in dL[1:]]
latitude.extend(sL1)
sL2 = [row[1] for row in dL[1:]]
stations.extend (sL2)
data = []
print "Station Coordinates"
for i in range(0, len(latitude)):
print str(stations[i]) + "(" + str(latitude[i]) + "," + str(longitude[i]) + ")"
ab = str(stations[i]) + "(" + str(latitude[i]) + "," + str(longitude[i]) + ")"
data.append(ab)
print stations
print
latOne = dL[1][3]
lonOne = dL [1][4]
x = [calculateDistance(latOne, lonOne, latTwo, lonTwo) for latTwo, lonTwo in zip(latitude, longitude)]
print x
print
lessthan, greaterthan = [], []
knowndistance = float(raw_input("Please type your radius"))
for v in x:
if v <= knowndistance:
lessthan.append(v)
else:
greaterthan.append(v)
print lessthan
print greaterthan
那你到底需要什么帮助?目前还不清楚......我用这种东西处理了很多东西,但是我无法真正知道你需要什么帮助...... –
你能举一个例子来说明dL的外观吗?它可以像在dL中循环项目一样简单,并将字典中的距离和相应的城市存储在一个字典 –
@RyanSaxe以及我想要帮助的是使用代码。这将获得距离,我想打印距离加上距离所属的电台名称。这更清楚吗? – user2430623