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<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal"><span lang="EN-US">I tried to add ground control points into a TIFF file with gdal_edit. I do not want to touch the TIFF so I used the read-only option and supposed that gcp would be written into .aux.xml file but that did not happen. Instead
I got a message<br>
<br>
gdal_edit -ro -gcp 1 1 20 30 test.tif <br>
ERROR 6: test.tif: SetGCPs() is only supported on newly created GeoTIFF files.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">Without -ro gdal_edit adds ground control points into the TIFF without errors. What might be the meaning of the message about “newly created GeoTIFF” and is there some way to make gdal_edit to write ground control points
into PAM file? I know that I can use gdal_translate and VRT as a workaround but PAM .aux.xml could be a bit better for my whole workflow.<o:p></o:p></span></p>
<p class="MsoNormal"><span lang="EN-US"><o:p> </o:p></span></p>
<p class="MsoNormal"><span lang="EN-US">-Jukka Rahkonen-<o:p></o:p></span></p>
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