坐标系转换

http://lbsyun.baidu.com/index.php?title=androidsdk/guide/coordtrans#.E9.80.9A.E7.94.A8.E5.9D.90.E6.A0.87.E8.BD.AC.E6.8D.A2.E6.96.B9.E6.B3.95.2C.E6.94.AF.E6.8C.81.E5.85.B6.E4.BB.96.E5.9D.90.E6.A0.87.E8.BD.ACBD09

原文地址:https://www.cnblogs.com/xiaobailook/p/8149194.html