[mapserver-users] On-the-fly hillshade with Mapserver and gdaldem

[Even Rouault]

On lundi 11 septembre 2017 10:14:13 CEST Rahkonen Jukka (MML) wrote:
> Hi,
> 
> Could it be possible to generate multidirectional hillshade on-the-fly for
> example by running gdaldem http://www.gdal.org/gdaldem.html in the
> background?

Would require changes to MapServer. Either creating a CONNECTION HILLSHADE (ala 
CONTOUR), or something more generic that would enable to run an arbitrary executable 
with options

Another way of doing it with GDAL 2.2 is to use VRT with pixel functions in Python:
http://www.gdal.org/gdal_vrttut.html#gdal_vrttut_derived_python

There's actually one example to do (single direction) hillshading.

Even

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