[gdal-dev] Hints that a raster band represents a DEM?

[Michael Sumner]

read from a global dem via the warper and do a correlation test?

:)


On Sat, Apr 30, 2022 at 11:11 AM Nyall Dawson <nyall.dawson at gmail.com>
wrote:

> Hi list,
>
> I'm looking for any tips on potential approaches I could use to
> automagically guess that a particular band from a data source
> represents an elevation surface.
>
> I haven't been able to find any common metadata components in the
> files I've investigated which could help indicate this, but maybe I'm
> missing something. Right now the best approach I can think of would be
> to test if the layer's CRS has a vertical component (but unfortunately
> even among DEM layers I think this will be rare!).
>
> Any suggestions?
> Nyall
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-- 
Michael Sumner
Software and Database Engineer
Australian Antarctic Division
Hobart, Australia
e-mail: mdsumner at gmail.com
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