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解决python gdal投影坐标系转换的问题

2020年03月09日  | 移动技术网IT编程  | 我要评论

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要将xian80地理坐标系转换成投影坐标系:

xian1980 = """
geogcs["gcs_xian_1980",
  datum["xian_1980",
    spheroid["xian_1980",6378140.0,298.257]],
  primem["greenwich",0.0],
  unit["degree",0.0174532925199433]]"""
prjreference = 'projcs["xian_1980_3_degree_gk_zone_37",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",37500000.0],parameter["false_northing",0.0],parameter["central_meridian",111.0],parameter["scale_factor",1.0],parameter["latitude_of_origin",0.0],unit["meter",1.0]]'

转换后会报错:

  latlong = transform.transformpoint(x,y)
 file "/usr/lib/python3/dist-packages/osgeo/osr.py", line 711, in transformpoint
  return _osr.coordinatetransformation_transformpoint(self, *args)
notimplementederror: wrong number or type of arguments for overloaded function 'coordinatetransformation_transformpoint'.
 possible c/c++ prototypes are:
  osrcoordinatetransformationshadow::transformpoint(double [3])
  osrcoordinatetransformationshadow::transformpoint(double [3],double,double,double)

**想想之前也没发现过这个问题呀,最后发现之前投影坐标系:**
'projcs["xian_1980_3_degree_gk_zone_37",geogcs["gcs_xian_1980",datum["d_xian_1980",spheroid["xian_1980",6378140.0,298.257]],primem["greenwich",0.0],unit["degree",0.0174532925199433]],projection["transverse_mercator"],parameter["false_easting",37500000.0],parameter["false_northing",0.0],parameter["central_meridian",111.0],parameter["scale_factor",1.0],parameter["latitude_of_origin",0.0],unit["meter",1.0]]'

**不是高斯-克吕格投影而是横轴墨卡托,我想原因可能是gdal库里只能支持高斯-克吕格投影吧。**

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