vs如何做网站平面设计公司属于什么行业
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