辛淼 Jin

Mercator ,麥卡托投影法 ，又称 墨卡托投影法 、 正軸等角圓柱投影 (http://zh.wikipedia.org/wiki/%E9%BA%A5%E5%8D%A1%E6%89%98%E6%8A%95%E5%BD%B1%E6%B3%95) EPSG, European Petroleum Standards Group 欧洲石油标准组织 在ArcGIS 10中Web Mercator有三种EPSG编号。他们分别是EPSG3857 、EPSG102100 EPSG102113。其实三者表示同一个投影，而这个投影跟谷歌以及Open Street Map等使用的投影EPSG:900913是一致的，只是这个编号以前人们使用的时候并没有被EPSG组织采纳。 以下是这几个编号代表的投影在ArcGIS中的元数据信息：（其中EPSG3857 EPSG102100 完全相同，EPSG102113稍有差异） EPSG3857 - WGS_1984_Web_Mercator_Auxiliary_Sphere EPSG 102100 - WGS_1984_Web_Mercator_Auxiliary_Sphere PROJCS[ "WGS_1984_Web_Mercator_Auxiliary_Sphere", GEOGCS[ "GCS_WGS_1984", DATUM["D_WGS_1984", SPHEROID[" WGS_1984 ", 6378137.0, 298.257223563 ]], PRIMEM["Greenwich", 0.0], UNIT["Degree", 0.0174532925199433] ], PROJECTION[" Mercator_Auxiliary_Sphere "], PARAMETER["False_Easting", 0.0], PARAMETER["False_Northing", 0.0], PARAMETER["Central_Meridian", 0.0], PARAM...

Projected Coordinate Systems Well-known ID Name 2000 Anguilla_1957_British_West_Indies_Grid 2001 Antigua_1943_British_West_Indies_Grid 2002 Dominica_1945_British_West_Indies_Grid 2003 Grenada_1953_British_West_Indies_Grid 2004 Montserrat_1958_British_West_Indies_Grid 2005 St_Kitts_1955_British_West_Indies_Grid 2006 St_Lucia_1955_British_West_Indies_Grid 2007 St_Vincent_1945_British_West_Indies_Grid 2008 NAD_1927_CGQ77_MTM_2_SCoPQ 2009 NAD_1927_CGQ77_MTM_3_SCoPQ 2010 NAD_1927_CGQ77_MTM_4_SCoPQ 2011 NAD_1927_CGQ77_MTM_5_SCoPQ 2012 NAD_1927_CGQ77_MTM_6_SCoPQ 2013 NAD_1927_CGQ77_MTM_7_SCoPQ 2014 NAD_1927_CGQ77_MTM_8_SCoPQ 2015 NAD_1927_CGQ77_MTM_9_SCoPQ 2016 NAD_1927_CGQ77_MTM_10_SCoPQ 2017 NAD_1927_DEF_1976_MTM_8 2018 NAD_1927_DEF_1976_MTM_9 2019 NAD_1927_DEF_1976_MTM_10 2020 NAD_1927_DEF_1976_MTM_11 2021 NAD_1927_DEF_1976_MTM_12 2022 NAD_1927_DEF_1976_MTM_13 2023 NAD_1927_DEF_1976_MTM_1...