秦淮html5响应式网站在线检测网站安全
Petrel坐标系统设置之前要先了解三个概念:
1)大地坐标,设置椭球参数
2)投影坐标,设置投影参数
3)基准转换,设置不同椭球转换三参数
系统没有CGCS2000到WGS84的基准转换,我们增加CGCS2000至WGS84的基准转换
先找到CGCS2000的椭球和WGS84椭球
然后利用WKT文件新建基准转换
先拷贝一个WKT,比如ITRF_2000_To_WGS_1984
GEOGTRAN["ITRF_2000_To_WGS_1984",GEOGCS["GCS_ITRF_2000",DATUM["D_ITRF_2000",SPHEROID["GRS_1980",6378137.0,298.257222101]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],METHOD["Geocentric_Translation"],PARAMETER["X_Axis_Translation",0.0],PARAMETER["Y_Axis_Translation",0.0],PARAMETER["Z_Axis_Translation",0.0],AUTHORITY["Esri",108280]]
改成CGCS_2000_To_WGS_1984
GEOGTRAN["CGCS_2000_To_WGS_1984",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]],GEOGCS["GCS_WGS_1984",DATUM["D_WGS_1984",SPHEROID["WGS_1984",6378137.0,298.257223563]],PRIMEM["Greenwich",0.0],UNIT["Degree",0.0174532925199433]],METHOD["Geocentric_Translation"],PARAMETER["X_Axis_Translation",0.0],PARAMETER["Y_Axis_Translation",0.0],PARAMETER["Z_Axis_Translation",0.0],AUTHORITY["Petrel",78280]]
X_Axis_Translation,Y_Axis_Translation,Z_Axis_Translation即是基准转换三参数
4)建立Petrel项目所能识别(搜索)的坐标系统
5)新建Petrel项目,选择GS120E坐标系统
参考文献
https://zhuanlan.zhihu.com/p/408020299