NAME

       gdal_edit - gdal_edit.py Edit in place various information of an existing GDAL dataset

SYNOPSIS

       gdal_edit [--help-general] [-ro] [-a_srs srs_def] [-a_ullr ulx uly lrx lry]
                 [-tr xres yres] [-unsetgt] [-a_nodata value]
                 [-gcp pixel line easting northing [elevation]]*
                 [-mo "META-TAG=VALUE"]*  datasetname

DESCRIPTION

       The gdal_edit.py script can be used to edit in place various information of an existing
       GDAL dataset (projection, geotransform, nodata, metadata).

       It works only with raster formats that support update access to existing datasets.

       --help-general:
           Gives a brief usage message for the generic GDAL commandline options and exit.

       -ro:
           (GDAL >= 1.11) Open the dataset in read-only. Might be useful for drivers refusing to
           use the dataset in update-mode. In which case, updated information will go into PAM
           .aux.xml files.

       -a_srs srs_def:

       Defines the target coordinate system. This coordinate system will be written to the
       dataset.

       -a_ullr ulx uly lrx lry:
           Assign/override the georeferenced bounds of the dataset.

       -tr xres yres :
           Set target resolution. The values must be expressed in georeferenced units. Both must
           be positive values.

       -unsetgt:
           Remove the georeference information.

       -a_nodata value:
           Assign a specified nodata value to output bands.

       -gcp pixel line easting northing [elevation]:
           Add the indicated ground control point to the dataset. This option may be provided
           multiple times to provide a set of GCPs.

       -mo 'META-TAG=VALUE':
           Passes a metadata key and value to set on the output dataset if possible.

       -a_ullr, -tr and -unsetgt options are exclusive.

EXAMPLE

       gdal_edit -mo DATUM=WGS84 -mo PROJ=GEODETIC -a_ullr 7 47 8 46 test.ecw

AUTHORS

       Even Rouault <even dot='' rouault='' at='' mines='' dash='' paris='' dot='' org>=''>