Re: [gdal-dev] Question on gdalwarp, srcnodata and dstalpha

2016-11-07 Thread Daniele Romagnoli
Hi Even, thanks for the feedback. On Sun, Nov 6, 2016 at 5:33 PM, Even Rouault wrote: > Le jeudi 03 novembre 2016 18:19:36, Daniele Romagnoli a écrit : > > Hi List, > > I was checking a gdalwarp (GDAL 2.1.2) invokation with a colleague and I > > have a question. > > > > I know that when warping

Re: [gdal-dev] Question on gdalwarp, srcnodata and dstalpha

2016-11-06 Thread Even Rouault
Le jeudi 03 novembre 2016 18:19:36, Daniele Romagnoli a écrit : > Hi List, > I was checking a gdalwarp (GDAL 2.1.2) invokation with a colleague and I > have a question. > > I know that when warping a geotiff with internal NODATA_VALUES=0 0 0 > metadata, only RGB pixels = 0 0 0 are handled as nodat

[gdal-dev] Question on gdalwarp, srcnodata and dstalpha

2016-11-03 Thread Daniele Romagnoli
Hi List, I was checking a gdalwarp (GDAL 2.1.2) invokation with a colleague and I have a question. I know that when warping a geotiff with internal NODATA_VALUES=0 0 0 metadata, only RGB pixels = 0 0 0 are handled as nodata whilst pixels like "0 2 4", "50 0 0" will not right? In the past, I had i