[GRASS-user] aspect map with azimuth values
mlennert at club.worldonline.be
Thu Jul 9 04:28:07 PDT 2015
On 2015-07-09 00:51, Glynn Clements wrote:
> Moritz Lennert wrote:
>> > how can I convert aspect map's values to azimuth values?
>> > or is there any way to create aspect map with azimuth values?
>> I think this should work (but you should double check):
>> if aspect <= 90, then azimuth = 90 - aspect
>> else: azimuth = 450 - aspect
>> r.mapcalc "azimuth_aspect = if(aspect <= 90, (90 - aspect), (450 -
> r.mapcalc "azimuth_aspect = (450 - aspect) % 360"
Even better, thanks !
Added as a FAQ  and to the r.slope.aspect manual (r65553).
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