Hi Even, Thanks for the pointer to this resource, and for working to support this important functionality. Would it make sense to add the -a_coord_epoch option to gdal_edit.py, so users can directly update the GeoTiff header for a dataset with known epoch? -David
-- David Shean Civil and Environmental Engineering University of Washington https://www.ce.washington.edu/facultyfinder/david-shean <https://www.ce.washington.edu/facultyfinder/david-shean> 201 More Hall, Box 352700 3760 E. Stevens Way NE Seattle, WA 98195-2700 Office: (206) 543-3105, Wilcox Hall 265 Pronouns: he, him, his > On Jan 17, 2024, at 11:40 AM, Even Rouault via gdal-dev > <gdal-dev@lists.osgeo.org> wrote: > > Hi, > > cf test_tiff_write_coordinate_epoch() in > https://github.com/OSGeo/gdal/blob/3a9541d19f2df52f1e66dacfa33878531a5f2c58/autotest/gcore/tiff_write.py#L9575 > > On the command line you might use: gdal_translate in.tif out.tif > -a_coord_epoch XXXX.YYY > > Even > > Le 17/01/2024 à 20:20, Glen Rice - NOAA Federal via gdal-dev a écrit : >> Hello, >> >> We are trying to create geotiffs from Python and specify an epoch for a >> dynamic CRS. Is there a way to do this from python or a command line >> utility? >> >> We see the pull request adding CoordinateEpochGeoKey (5120) and expect I >> could print the information from gdalinfo if I had an example file. If we >> were in C/C++ then we could use libgeotiff and GTIFKeyGet( ). However we >> are in Python and we don't see how to write either the >> CoordinateEpochGeoKey, or even a generic geokey, into a geotiff. >> >> For reference we looked at the following links: >> https://gdal.org/user/coordinate_epoch.html >> https://github.com/opengeospatial/geotiff/issues/78 >> https://github.com/opengeospatial/geotiff/pull/99 >> https://github.com/OSGeo/libgeotiff/blob/master/libgeotiff/geokeys.inc >> >> Thanks for any help, >> Glen and Barry >> >> -- >> Glen Rice >> National Bathymetric Source >> Hydrographic Systems and Technology Branch >> Office of Coast Survey / Coast Survey Development Laboratory >> >> >> _______________________________________________ >> gdal-dev mailing list >> gdal-dev@lists.osgeo.org <mailto:gdal-dev@lists.osgeo.org> >> https://lists.osgeo.org/mailman/listinfo/gdal-dev > -- > http://www.spatialys.com <http://www.spatialys.com/> > My software is free, but my time generally not. > _______________________________________________ > gdal-dev mailing list > gdal-dev@lists.osgeo.org > https://lists.osgeo.org/mailman/listinfo/gdal-dev
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