[gdal-dev] Mass operations to raster block?

[Even Rouault]

Hi Andrew,

no, there's no such support in GDAL itself. That could potentially be 
done using VRT and pixel functions, but I'm not sure that would qualify 
as "optimal", and that would require a bit of setup. You're probably 
better instantiating your for(y: ...) for (x: ...) loop manually with 
the operation you want to apply

xtensor (https://xtensor.readthedocs.io/en/latest/operator.html) (in a 
nutshell, this is similar to numpy but in C++) could potentially be used 
in combination of GDAL, but I don't think we want to drag this 
dependency in GDAL itself

Even

Le 06/05/2024 à 20:43, Andrew Bell via gdal-dev a écrit :
> Hi,
>
> Is there any support in the library for applying some arithmetic 
> operations to all entries in a block? For example, can I optimally 
> subtract or add some scalar to every entry?
>
> Thanks,
>
> -- 
> Andrew Bell
> andrew.bell.ia at gmail.com
>
> _______________________________________________
> gdal-dev mailing list
> gdal-dev at lists.osgeo.org
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-- 
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