1. 读取投影

dfsu2.Projection.WKTString

dfsu2.Projection

ans = 

  DfsProjection - 属性:

           Type: Projection
      WKTString: [1×1 System.String]
      Longitude: 123.0000
       Latitude: 0
    Orientation: 0


dfsu2.Projection.WKTString

ans = 

PROJCS["CGCS2000_3_Degree_GK_CM_123E",GEOGCS["GCS_China_Geodetic_Coordinate_System_2000",DATUM["D_China_2000",SPHEROID["CGCS2000",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],PROJECTION["Gauss_Kruger"],PARAMETER["False_Easting",500000.0],PARAMETER["False_Northing",0.0],PARAMETER["Central_Meridian",123.0],PARAMETER["Scale_Factor",1.0],PARAMETER["Latitude_Of_Origin",0.0],UNIT["Meter",1.0],AUTHORITY["EPSG",4550]]