[gdal-dev] "RFC 75: Multidimensional arrays" available for preliminary review

[Edzer Pebesma]

Thanks for that, Even, looks good!

I have a couple of questions:

- what would be the advantage to GDAL users using this interface, as
opposed to reading/writing directly using the HDF or NetCDF4 interfaces?
Will it for instance be able to figure out coordinate reference systems,
and identify which dimensions are spatial dimensions?

- will this interface also give access to e.g. irregular dimensions (for
rectlinear grids), bounds of dimensions, or two-dimensional dimension
values like longitude values for each grid cell (for curvilinear grids)?

- will handling of time values follow the netcdf pattern (e.g. integer
values, along with a udunits2 time unit), or be like a double
representing seconds since 1970-01-01, or be something more higher level
like it is in OGR's OFTDateTime?

- will it also be possible to read e.g. spatial raster bands on a lower
than native spatial resolution, like RasterIO() does?

On 5/24/19 5:00 PM, Even Rouault wrote:
> Hi,
> 
> I've prepared a preliminary version of a new RFC to add support for multidimensional arrays
> 
> https://github.com/rouault/gdal/blob/rfc75_text/gdal/doc/source/development/rfc/rfc75_multidimensional_arrays.rst
> 
> If you want to comment it inline, it is also available as a pull request at
> https://github.com/OSGeo/gdal/pull/1580
> 
> This is preliminary content to give an idea of the general directions I have in mind for now.
> Not backed by any implementation yet (should start soon hopefully), so API details will likely change,
> but early feedback is welcome.
> 
> Even
> 

-- 
Edzer Pebesma
Institute for Geoinformatics
Heisenbergstrasse 2, 48151 Muenster, Germany
Phone: +49 251 8333081
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