1. 看图,有URL,有版本,有例子,完美!
2. 官方链接:
https://geographiclib.sourceforge.io/C++/doc/classGeographicLib_1_1PolygonAreaT.html
3.在线测试:https://geographiclib.sourceforge.io/cgi-bin/Planimeter?type=polygon&rhumb=geodesic&input=60+0%0D%0A60+120%0D%0A60+240%0D%0A&option=Submit
4.计算例子(先纬度后经度)
【例子1】
60 0
60 120
60 240
Results:
Perimeter (m)= 17180928.458438area (m^2) = 15797025696584.2
【例子2】
0 0
0 30
90 0
Results:
Perimeter (m)= 23343516.182424area (m^2) = 21252734238503.7