Closed kannes closed 5 years ago
Works fine for me with GDAL 3.0and master branches
$ gdalwarp -geoloc -t_srs EPSG:4326 -dstnodata 9.96920996838686905e+36 nitrogendioxide_tropospheric_column.vrt dstnodata.tif -overwrite (you might also want to add -srcnodata 9.96920996838686905e+36 )
$ gdalinfo dstnodata.tif | grep NoData
NoData Value=9.96920996838686905e+36
Gah, I think I have been fooled by something. I can confirm that also works for me. Maybe a stray aux.xml file from a previous attempt with the same filename interfered? If that sounds reasonable, please excuse me for the issue and close it.
Expected behavior and actual behavior.
I am trying to copy over or assign a NODATA value for a TIF created from a VRT referencing datasets in a HDF file. I am unable to get a TIF with a NODATA value.
I wonder if https://github.com/OSGeo/gdal/issues/1451 is related.
Steps to reproduce the problem.
Download and extract http://0x0.st/zJ7Q.zip (gone in 4 weeks!)
The included HDF file has three important datasets:
latitude
andlongitude
for point coordinates of sensings and thenitrogendioxide_tropospheric_column
(among others) for the actual values.$ gdalinfo HDF5:S5P_NRTI_L2__NO2____20190903T112303_20190903T112803_09790_01_010302_20190903T121309.hdf://PRODUCT/nitrogendioxide_tropospheric_column
showsNoData Value=9.96920996838686905e+36
.There are three VRT files, following the approach of making a proper raster data set in https://lists.osgeo.org/pipermail/gdal-dev/2012-June/033147.html and https://gis.stackexchange.com/a/154360/51035
I did not manage to copy or assign a NODATA value to the resulting dataset.
I tried
gdalwarp -geoloc -t_srs EPSG:4326 -srcnodata 9.96920996838686905e+36 nitrogendioxide_tropospheric_column.vrt srcnodata.tif
andgdalwarp -geoloc -t_srs EPSG:4326 -dstnodata 9.96920996838686905e+36 nitrogendioxide_tropospheric_column.vrt dstnodata.tif
I tried adding
<NoDataValue>9.96920996838686905e+36</NoDataValue>
into theVRTRasterBand
element ofnitrogendioxide_tropospheric_column.vrt
, thengdalwarp -geoloc -t_srs EPSG:4326 nitrogendioxide_tropospheric_column.vrt dstnodata.tif
as well as with thesrcnodata
ordstnodata
parameters as above.gdalinfo nitrogendioxide_tropospheric_column.vrt
also did not show a NODATA value here.The resulting TIFF never had a NODATA value, I checked with
gdalinfo $file | grep -i nodata
.Operating system
Archlinux 64 bit
GDAL version and provenance
$ gdalinfo --version GDAL 3.0.0, released 2019/05/05