> From: [email protected] > To: [email protected] > Subject: Re: [gdal-dev] RFC 58: Removing Dataset Nodata Value > Date: Tue, 19 May 2015 16:10:38 +0200 > CC: [email protected]; [email protected] > > Le mardi 19 mai 2015 16:06:59, Ivan Lucena a écrit : > > Jukka/Even, > > > > Yes, you guy are right. The "-a_nodata none" will help but I still need to > > implement a value range check on my CreateCopy anyway. So users don't need > > to run gdal_translate again after they find the problem or use "-a_nodata > > none" all the time (in a script for example) and miss the good ones. > > I'm wondering if it might not make more sense to modify the input driver(s) > to > not report out-of-range nodata values ? I fail to see a reason to report an > out-of-range nodata value. >
That makes sense but we would need to go though all drivers and copy&paste the value range check code to avoid reporting wrong values. Could the core GetNoDataValue do that instead? > > > > Thanks. > > > > > To: [email protected] > > > From: [email protected] > > > Date: Tue, 19 May 2015 13:43:38 +0000 > > > Subject: Re: [gdal-dev] RFC 58: Removing Dataset Nodata Value > > > > > > Ivan Lucena <lucena_ivan <at> hotmail.com> writes: > > > > Would that be feasible to accept the option "-a_nodata NO" on GDAL > > > > command > > > > > > lines, to indicate that NoData should not pass from the input to the > > > output dataset? > > > > > > Would it be something different than "-a_nodata none"? > > > > > > -a_nodata value: > > > Assign a specified nodata value to output bands. Starting with GDAL > > > > > > 1.8.0, can be set to none to avoid setting a nodata value to the output > > > file if one exists for the source file. Note that, if the input dataset > > > has a nodata value, this does not cause pixel values that are equal to > > > that nodata value to be changed to the value specified with this option. > > > > > > -Jukka Rahkonen- > > > > > > _______________________________________________ > > > gdal-dev mailing list > > > [email protected] > > > http://lists.osgeo.org/mailman/listinfo/gdal-dev > > -- > Spatialys - Geospatial professional services > http://www.spatialys.com
_______________________________________________ gdal-dev mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/gdal-dev
