[gdal-dev] gdalwarp: different results between 2.3.0 and 2.4.0

[GUIMMARA, Sébastien]

I have a small GRIB file whose coordinate system is GRIB-specific, and it spans the whole world, from longitude 0 to 360. I would like to read this raster from an EPSG:4326 perspective, so I'm using gdalwarp to warp it to a VRT :

gdalwarp  -t_srs EPSG:4326 -of VRT input.grib output.vrt

When I inspect the VRT using GDAL 2.4.0 (the one shipped with QGIS 3.4) I notice that the geotransform is correct. When imported in QGIS, it correctly spans the world from longitude -180 to 180.

However, the same VRT generated with GDAL 2.3.0 gives a completely different geotransform. Actually it seems that the original geotransform was not modified at all, and I cannot correctly import it in QGIS, since it spans from 0 to 360, and thus is not aligned properly with other layers in the EPSG:4326 SRS (which span from -180 to 180)

Were there any modification to gdalwarp from 2.3.0 to 2.4.0 ? different default options ?

Thanks,
Sébastien

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