[gdal-dev] Advice on `GDALCreateAndReprojectImage` and destination no-data value.

[Fitch, Simeon]

Thanks Even & Javier!  Very helpful advice! Much appreciated.

Simeon

On Fri, Nov 3, 2023 at 7:02 PM Even Rouault <even.rouault at spatialys.com>
wrote:

> Simeon,
> >     Band 1 Block=210x39 Type=Byte, ColorInterp=Gray
> >
> > The only way I've been able to get the behavior I need is to open the
> > written dataset from the filesystem and set the no-data value
> > explicitly in the band, which is inefficient and awkward.
>
> You don't have much alternative than doing that if you use
> GDALCreateAndReprojectImage(). But GDALCreateAndReprojectImage() is a
> "simplistic" warp API that doesn't have all the bells and whistles of
> what gdalwarp lib. You could potentially submit a patch to
> GDALCreateAndReprojectImage() to set the nodata value, which would be
> reasonable, but perhaps you could just bind the GDALWarp() C function
> that is the heart of the gdalwarp binary. You'd get all the advanced
> heuristics of gdalwarp that you don't get with the less advanced warp
> functions.
>
> Even
>
> --
> http://www.spatialys.com
> My software is free, but my time generally not.
>
>

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