[gdal-dev] Error in GDALWarp to NWT_GRD

[James Ramm]

Yes I am finding it can be dependent on the input dataset dimensions - Im
only reproducing with a large raster. It is perhaps a small problem anyway
since apparently MapInfo will not handle files > 2GB anyway.
I will try using VSIFTruncateL to initialize.

On 13 July 2016 at 15:21, Even Rouault <even.rouault at spatialys.com> wrote:

> Le mercredi 13 juillet 2016 15:41:36, jramm a écrit :
> > jramm wrote
> >
> > > gdalwarp -of NWT_GRD -ot Float32 -t_srs EPSG:4326 test.tif test.grd
> > >
> > > very quickly returns
> >
> > Sorry this meant to read:
> >
> > very quickly returns:
> >
> > 0ERROR 1: /home/jamesramm/test.grd, band 1: IReadBlock failed at X offset
> > 0, Y offset 0
> > ERROR 1: GetBlockRef failed at X block offset 0, Y block offset 0
>
> I don't manage to reproduce. Might perhaps depend on the dimensions of the
> input dataset and/or cache size used
>
> That said, it is not inconsistant that some code tries to read blocks on
> the
> newly created dataset. Probably that the Create() method should use
> VSIFTruncateL() to set the file to the full size if filling with zeroes is
> OK
> for the format. Otherwise you may need to pad with more appropriate values.
> That way potential IReadBlock() won't error out.
>
> >
> >
> >
> >
> > --
> > View this message in context:
> >
> http://osgeo-org.1560.x6.nabble.com/Error-in-GDALWarp-to-NWT-GRD-tp5276136
> > p5276137.html Sent from the GDAL - Dev mailing list archive at
> Nabble.com.
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