真爱趁现在百度云1-33:地理坐标系统和投影坐标系统
来源:百度文库 编辑:中财网 时间:2024/04/29 19:13:43
Angular Unit: Degree (0.017453292519943299)
Prime Meridian: Greenwich (0.000000000000000000)
Datum: D_Beijing_1954
Spheroid: Krasovsky_1940
Semimajor Axis: 6378245.000000000000000000
Semiminor Axis: 6356863.018773047300000000
Inverse Flattening: 298.300000000000010000
二、投影坐标系统
Projection: Gauss_Kruger
False_Easting: 500000.000000
False_Northing: 0.000000
Central_Meridian: 99.000000
Scale_Factor: 1.000000
Latitude_Of_Origin: 0.000000
Linear Unit: Meter (1.000000)Geographic Coordinate System: GCS_Beijing_1954
Angular Unit: Degree (0.017453292519943299)
Prime Meridian: Greenwich (0.000000000000000000)
Datum: D_Beijing_1954
Spheroid: Krasovsky_1940
Semimajor Axis: 6378245.000000000000000000
Semiminor Axis: 6356863.018773047300000000
Inverse Flattening: 298.300000000000010000
其中Projection: Gauss_Kruger这行描述了投影的类型,表示当前投影为高斯-克吕格投影。False_Easting: 500000.000000表示坐标纵轴向西移动了500km,这样做是为了保证在该投影分带中所有x值都为正。False_Northing: 0.000000表示横轴没有发生位移。Central_Meridian: 99.000000表示中央经线位于经度为99度的位置。Linear Unit: Meter (1.000000)表示在该投影下坐标单位为m。Geographic Coordinate System: 以下描述了投影源的地理坐标系统参数。可见每一个投影坐标系统都必会由一个地理坐标系统投影转化而成的。