Re: [gdal-dev] ReprojectImage and nodata

2014-04-26 Thread Luca Delucchi
On 16 April 2014 16:00, Even Rouault wrote: Hi Even, > > Calling > > dst_ds.GetRasterBand(X).SetNoDataValue(nv) > dst_ds.GetRasterBand(X).Fill(nv) > > before gdal.ReprojectImage() should do what you want. > Yes, it seems correct. I have to test it a little bit more but the first results are goo

Re: [gdal-dev] ReprojectImage and nodata

2014-04-16 Thread Even Rouault
.Fill(nv) before gdal.ReprojectImage() should do what you want. > > There was already a request for help about one year ago [0], there are > some news? > Otherwise could I open a ticket? is it a bug or enhancement? > > Thanks a lot for any hints > > [0] > http://osgeo-org.1560.x6.n

[gdal-dev] ReprojectImage and nodata

2014-04-15 Thread Luca Delucchi
hints [0] http://osgeo-org.1560.x6.nabble.com/gdal-dev-ReprojectImage-and-nodata-td5057270.html -- ciao Luca http://gis.cri.fmach.it/delucchi/ www.lucadelu.org ___ gdal-dev mailing list gdal-dev@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/gdal-dev

Re: [gdal-dev] ReprojectImage and nodata

2013-10-23 Thread Even Rouault
Le mercredi 23 octobre 2013 21:19:48, David Shean a écrit : > Even, > I encountered the issue you mention back in May: > > http://osgeo-org.1560.x6.nabble.com/gdal-dev-ReprojectImage-and-nodata-td50 > 57270.html > > The current ReprojectImage nodata handling is a bit confu

Re: [gdal-dev] ReprojectImage and nodata

2013-10-23 Thread David Shean
Even, I encountered the issue you mention back in May: http://osgeo-org.1560.x6.nabble.com/gdal-dev-ReprojectImage-and-nodata-td5057270.html The current ReprojectImage nodata handling is a bit confusing. Do you see a relatively simple fix to mirror the behavior of gdalwarp? Thanks. -David

Re: [gdal-dev] ReprojectImage and nodata

2013-10-23 Thread Ochs, Elke ERDC-RDE-CRREL-NH
y I didn't include that in my 1st post). Elke -Original Message- From: Even Rouault [mailto:even.roua...@mines-paris.org] Sent: Wednesday, October 23, 2013 1:26 PM To: gdal-dev@lists.osgeo.org Cc: Ochs, Elke ERDC-RDE-CRREL-NH Subject: Re: [gdal-dev] ReprojectImage and nodata Le merc

Re: [gdal-dev] ReprojectImage and nodata

2013-10-23 Thread Even Rouault
Le mercredi 23 octobre 2013 19:05:18, Ochs, Elke ERDC-RDE-CRREL-NH a écrit : > ReprojectImage does not maintain areas of nodata as I would expect it > should. Small areas of nodata are getting erased and larger areas are > reduced in size. I'm reprojecting from geographic to Albers, using > appro

[gdal-dev] ReprojectImage and nodata

2013-10-23 Thread Ochs, Elke ERDC-RDE-CRREL-NH
ReprojectImage does not maintain areas of nodata as I would expect it should. Small areas of nodata are getting erased and larger areas are reduced in size. I'm reprojecting from geographic to Albers, using approximately the same cell size (converted from dd to meters). I'm using GDAL 1.9.2

[gdal-dev] ReprojectImage and nodata

2013-05-31 Thread David Shean
Hi list, I'm having some issues with the Python ReprojectImage function not respecting nodata. My input dataset has nodata value -32767. I am using ReprojectImage to resample and warp the src_ds in memory to match the resolution and srs of a second dataset. The output of ReprojectImage has no