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Javier,
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<div>However using "-ct", swaps the output:</div>
<div><span style="font-family:monospace">$ gdalwarp -ct
'+proj=pipeline +step +proj=axisswap +order=2,1 +step +inv
+proj=tmerc +lat_0=44 +lon_0=144.25 +k=0.9999 +x_0=0 +y_0=0
+ellps=GRS80 +step +proj=webmerc +lat_0=0 +lon_0=0 +x_0=0
+y_0=0 +ellps=WGS84' input.tif pipeline.tif<br>
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You should add -t_srs EPSG:3857 in the above so that gdalwarp knows
that the output SRS is != input SRS, and in particular so that it
knows it axis order. The pipeline specified by -ct will be used even
if -s_srs and/or -t_srs are specify. And then you can remove the
below gdal_edit<br>
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<div><span style="font-family:monospace">$ gdal_edit.py -a_srs
EPSG:3857 pipeline.tif<br>
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<p>Even</p>
<br>
<pre class="moz-signature" cols="72">--
<a class="moz-txt-link-freetext" href="http://www.spatialys.com">http://www.spatialys.com</a>
My software is free, but my time generally not.</pre>
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