Python——将高德坐标（GCJ02）转换为GPS（WGS84）坐标

Python——将高德坐标（GCJ02）转换为GPS（WGS84）坐标

 # 官方API: http://lbs.amap.com/api/webservice/guide/api/convert

 # 坐标体系说明：http://lbs.amap.com/faq/top/coordinate/3

 # GCJ02->WGS84 Java版本：http://www.cnblogs.com/xinghuangroup/p/5787306.html

 # 验证坐标转换正确性的地址：http://www.gpsspg.com/maps.htm

 # 以下内容为原创，转载请注明出处。



 import xlrd

 import xlwt

 import math

 from xlutils.copy import copy

 workbook = xlrd.open_workbook("E:/090000440305.xls")

 sheet = workbook.sheet_by_index(0)

 locations = sheet.col_values(6)

 def GCJ2WGS(location):

 # location格式如下：locations[1] = "113.923745,22.530824"

     lon = float(location[0:location.find(",")])

     lat = float(location[location.find(",") + 1:len(location)])

     a = 6378245.0 # 克拉索夫斯基椭球参数长半轴a

     ee = 0.00669342162296594323 #克拉索夫斯基椭球参数第一偏心率平方

     PI = 3.14159265358979324 # 圆周率

     # 以下为转换公式

     x = lon - 105.0

     y = lat - 35.0

     # 经度

     dLon = 300.0 + x + 2.0 * y + 0.1 * x * x + 0.1 * x * y + 0.1 * math.sqrt(abs(x));

     dLon += (20.0 * math.sin(6.0 * x * PI) + 20.0 * math.sin(2.0 * x * PI)) * 2.0 / 3.0;

     dLon += (20.0 * math.sin(x * PI) + 40.0 * math.sin(x / 3.0 * PI)) * 2.0 / 3.0;

     dLon += (150.0 * math.sin(x / 12.0 * PI) + 300.0 * math.sin(x / 30.0 * PI)) * 2.0 / 3.0;

     #纬度

     dLat = -100.0 + 2.0 * x + 3.0 * y + 0.2 * y * y + 0.1 * x * y + 0.2 * math.sqrt(abs(x));

     dLat += (20.0 * math.sin(6.0 * x * PI) + 20.0 * math.sin(2.0 * x * PI)) * 2.0 / 3.0;

     dLat += (20.0 * math.sin(y * PI) + 40.0 * math.sin(y / 3.0 * PI)) * 2.0 / 3.0;

     dLat += (160.0 * math.sin(y / 12.0 * PI) + 320 * math.sin(y * PI / 30.0)) * 2.0 / 3.0;

     radLat = lat / 180.0 * PI

     magic = math.sin(radLat)

     magic = 1 - ee * magic * magic

     sqrtMagic = math.sqrt(magic)

     dLat = (dLat * 180.0) / ((a * (1 - ee)) / (magic * sqrtMagic) * PI);

     dLon = (dLon * 180.0) / (a / sqrtMagic * math.cos(radLat) * PI);

     wgsLon = lon - dLon

     wgsLat = lat - dLat

     return wgsLon,wgsLat

 wgsWorkbook = copy(workbook) # CMD下：pip install xlutils，该库可以通过复制一个工作簿实现对已有内容的excel文件的写入。



 wgsSheet = wgsWorkbook.get_sheet(0) # 接上。

方式为：复制原工作簿，获取工作表，在新表下写入，保存时名称可以与源文件一致。



 wgsSheet.write(0,sheet.ncols,"wgsLocation")

 for i in range(1,sheet.nrows):

     wgsSheet.write(i,sheet.ncols,str(GCJ2WGS(locations[i])).replace("(","").replace(")","")) # 在新的一列写入转换后的坐标

 wgsWorkbook.save("E:/090000440305.xls")

 print("Done!")