WGS84, Web Mercator, Mars coordinates, Baidu coordinate transfer

1.gcj-02 coordinate system (Mars coordinates) Introduction: http://blog.csdn.net/giswens/article/details/8775121 (archive: http://mapbd.com/cms/2012/07/25/)
Theoretical basis for reverse transformation of 2.gcj-02 to real coordinates: http://blog.csdn.net/giswens/article/details/8775213
3.WGS84 coordinates with web Mercator coordinates: http://blog.csdn.net/giswens/article/details/9634261
4. WGS-84-to-GCJ-02 conversion algorithm for streaming: http://kongxz.com/2013/10/wgs-cgj/
5. Conversion algorithm for the Earth Coordinate system (WGS-84) to the Mars coordinate system (GCJ-02):
C # code: https://on4wp7.codeplex.com/SourceControl/changeset/view/21483#353936 (Note: http://blog.csdn.net/giswens/ article/details/8775283)
Java code: Http://emq.googlecode.com/svn/emq/src/Algorithm/Coords/Converter.java
iOS Code: http://blog.csdn.net/giswens/article/details/8775183 (Archive: http://www.keakon.net/2011/07/02/WGS84 coordinates to Mars coordinates (IOS))
6. Mars coordinate system (GCJ-02) and Baidu coordinate system (BD-09) conversion algorithm: http://blog.csdn.net/coolypf/article/details/8569813 (interpretation: International latitude and longitude coordinate standard for WGS-84, The country must use at least the GCJ-02 developed by the National Bureau of testing, the location of the first encryption. Baidu coordinates on this basis, carried out the BD-09 two times encryption measures, more protection of personal privacy. The coordinate system of Baidu external interface is not the true latitude and longitude of GPs acquisition, and it needs to be transformed by coordinate transformation interface. ）
7. A method for perfect fitting of Mars coordinates according to corrective data: http://blog.sina.com.cn/s/blog_538036cf0100pxbl.html
8. Local Map API coordinate system comparison: http://rovertang.com/archives/547
9. A study on Baidu map coordinate conversion interface: http://rovertang.com/archives/24699

Transferred from: http://blog.csdn.net/wildboy2001/article/details/12031351

WGS84, Web Mercator, Mars coordinates, Baidu coordinate transfer