摘要: An improved algorithm to convert Earth-centered, Earth-fixed (ECEF) coordinates to geodetic coordinates is presented. It is faster than other methods and has accuracy equal to that of one of the most accurate existing algorithms, for heights greater than -3,000,000 m....
Simple library for converting coordinates to/from several geodetic frames (lat/lon, ECEF, ENU, NED, etc.) - ethz-asl/geodetic_utils
Thetin-terraintool requires your datasets to be in the Web Mercator projection (EPSG:3857). If your datasets are not in this projection, you can quite easily reproject your datasets withgdalwarp, e.g.: gdalwarp -t_srs EPSG:3857 ned19_n37x75_w122x50_ca_goldengate_2010.img ned19_n37x...