WKID与 WKT

坐标参考对比

WKID：Well Known ID ；一个是编号

WKT：Well Known Text；一个是描述

• Spatial Reference: 
• PROJCS["Xian_1980_3_Degree_GK_Zone_FS",GEOGCS["GCS_Xian_1980",DATUM["D_Xian_1980",SPHEROID["Xian_1980",6378140.0,298.257]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",113.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0]]

如何把wkt转为特定wkid的地图

打开arcmap的arctoolbox，data management tools里的projections and transforms里有define projection，输入上段text，上传要转换的地图（地理要素集），选择我要输出的wkid即可转换成对应坐标系的地图。原4610已转为2363坐标系。