[gdal-dev] "Tolerance condition error" while reprojecting MSG/SEVIRI products

[Nikos Alexandris]

Dears,

I finally got a working `gdalwarp` one-lines for MSG/SEVIRI products.
For example,

```
gdalwarp \
  -ot Float32 \
  -s_srs "+proj=geos +h=35785831 +a=6378169 +b=6356583.8 +no_defs" \
  -t_srs EPSG:4326 \
  -r near \
  -of GTiff \
  HDF5_LSASAF_MSG_LST_MSG-Disk_201906302300.tif \
  HDF5_LSASAF_MSG_LST_MSG-Disk_201906302300_wgs84.tif
```

However, while `gdalwarp` processes the GeoTIFF file, it issues many
lines of the following error:
```
ERROR 1: tolerance condition error
..
ERROR 1: tolerance condition error
ERROR 1: Reprojection failed, err = -20, further errors will be suppressed on the transform object.
..
ERROR 1: Reprojection failed, err = -20, further errors will be suppressed on the transform object.
Creating output file that is 3879P x 3537L.
Processing input file HDF5_LSASAF_MSG_LST_MSG-Disk_201906302300.tif.
0...10...20...30...40...50...60...70...80...90...100 - done.
```

How important is this error? Thank you.