Write in an Band

[EchoPouet]

Hello,

I convert a Python code with GDAL and Numpy that use gdal.Band.WriteArray method but it doesn't exist in your package.

How to made this operation with your package ?

My Python code :

outband = dsOut.GetRasterBand(1)
outband.WriteArray(OUTPUT[0].transpose())

Thanks

[visr]

If I understand correctly, Python's WriteArray method is something added to the Python GDAL API to make working with NumPy arrays a bit easier. It's not part of the GDAL C API, which is what this package wraps. You can see here at the end that only Python uses WriteArray: https://gdal.org/gdal_tutorial.html.

I see in https://github.com/JuliaGeo/GDAL.jl/blob/master/test/tutorial_raster.jl that we didn't yet translate this last example to Julia, we should do that. You can try it based on the example in C if you want. If you get stuck post it here then we can work it out together. Otherwise I'll get to it when I have some more time.

[EchoPouet]

I have replaced WriterArray by the code below:

outband = GDAL.getrasterband(dsOut, 1)
xsize = GDAL.getrasterbandxsize(outband)
ysize = GDAL.getrasterbandysize(outband)
outputTranpose = transpose(output[1])
GDAL.rasterio(outband, GDAL.GF_Write, 0, 0, xsize, ysize, Ref(outputTranpose), size(outputTranpose)[1], size(outputTranpose)[2], GDAL.GDT_Float32, 0, 0)
GDAL.setrasternodatavalue(outband,` 0.)

Maybe you should add this example in your tutorial.

Thanks for your help.

[visr]

Glad that you've been able to make it work. I'll reopen the issue to serve as a reminder to add test/tutorial code.