http://www.cnblogs.com/relax/p/3507014.html
http://zhidao.baidu.com/link?url=-9srSDD7P0TLaERPDa3dqgUIeM2ZMGumFoB6C9d-4I-KeRXki3LqwgbkADEpk_ZltU_GryV429HIN5VvRqMnRbUIEmHvvtbbibXm18GHCCa
http://www.cnblogs.com/langu/p/4033608.html
http://blog.csdn.net/gf771115/article/details/42776631
http://api.map.baidu.com/library/GeoUtils/1.2/examples/simple.html