如何将度分秒转换为度十进制 [英] How to convert degree minute second to degree decimal

问题描述

我从GPS接收以下格式的纬度和经度:

I receive the latitude and longitude from GPS with this format:

纬度:78°55'44.29458北

Latitude : 78°55'44.29458"N

我需要将此数据转换为:

I need convert this data to:

纬度:78.9288888889

latitude: 78.9288888889

我在这里找到此代码:链接

I found this code here: link

import re

def dms2dd(degrees, minutes, seconds, direction):
    dd = float(degrees) + float(minutes)/60 + float(seconds)/(60*60);
    if direction == 'E' or direction == 'N':
        dd *= -1
    return dd;

def dd2dms(deg):
    d = int(deg)
    md = abs(deg - d) * 60
    m = int(md)
    sd = (md - m) * 60
    return [d, m, sd]

def parse_dms(dms):
    parts = re.split('[^\d\w]+', dms)
    lat = dms2dd(parts[0], parts[1], parts[2], parts[3])

    return (lat)

dd = parse_dms("78°55'44.33324"N )

print(dd)

它适用于这种格式

dd = parse_dms("78°55'44.33324'N" )

，但不适用于我的datafromat.谁能帮我解决这个问题?

but it is not working for my datafromat. Can anyone help me to solve this problem?

推荐答案

问题是秒44.29458在.处被分开.

The problem is that the seconds 44.29458 are split at ..

您可以直接定义分割字符(而不是分割 not 的位置):

You could either define the split characters directly (instead of where not to split):

>>> re.split('[°\'"]+', """78°55'44.29458"N""")
['78', '55', '44.29458', 'N']

或保留正则表达式，然后合并第2部分和第3部分:

or leave the regular expression as it is and merge parts 2 and 3:

dms2dd(parts[0], parts[1], parts[2] + "." + parts[3], parts[4])

---

更新:

您的方法调用dd = parse_dms("78°55'44.33324"N )是语法错误.添加结尾的"并跳过另一个.或使用三引号引起来的字符串定义:

Your method call dd = parse_dms("78°55'44.33324"N ) is a syntax error. Add the closing " and escape the other one. Or use tripple quotes for the string definition:

parse_dms("""78°55'44.29458"N""")

这篇关于如何将度分秒转换为度十进制的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！