[gdal-dev] [gdal 2.2.2] different result with gdal 2.1.0

[Even Rouault]

Vincent,

digging into the GDAL 2.2.0 NEWS file, I see:
"""
ASRP driver:
 * fix georeferencing of polar arc zone images (#6560)
""""

So if there's an issue it is mostly related to that change, rather than on the gdalwarp / 
GDALSuggestedWarpOutput side of things

And that fix was backported to GDAL 2.1.1, which explains I saw same results in the latest 
state of GDAL 2.1, 2.2 and trunk branchs, if you are on GDAL 2.1.0 which has not this fix

You should already see the difference of georeferencing between GDAL 2.1.0 and later 
version by doing a gdalinfo on the source ASRP file.

Do you have strong reasons to believe that GDAL 2.1.0 was really georeferencing 
correctly your dataset ? 
The change done in https://trac.osgeo.org/gdal/ticket/6560 seems at first sight to be an 
improvement regarding the previous behaviour

Even

-- 
Spatialys - Geospatial professional services
http://www.spatialys.com
-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.osgeo.org/pipermail/gdal-dev/attachments/20171107/cfb38aff/attachment.html>