[gdal-dev] RFC 75: Multidimensional arrays

[Even Rouault]

On jeudi 18 juillet 2019 09:20:13 CEST Sean Gillies wrote:
> Hi Even,
> 
> GDAL will already read and write multidimensional arrays
> using GDALDatasetRasterIO, yes? 

No, that's a separate API. There's a bridge between both with the
GDALRasterBand::AsMDArray() and GDALMDArray::AsClassicDataset() methods.
The gdalmdimtranslate utility can also bridge between the 2 worlds. That is if 
you export a 4D array as a GeoTIFF, it will use  
GDALMDArray::AsClassicDataset() and will expose the non-XY dimensions as many 
bnds as needed.

> Arrays of a single type per dimension, but
> that's conventional for N-D array implementations like Numpy.

Not sure to understand the above. The data type is the same for a given array. 
Yes, ala NumPy.

> Perhaps the
> RFC and feature would be better named "hierarchical data"?

This is both actually: hierarchial data + multidimensional arrays.

Even

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