On Mon, Dec 2, 2013 at 10:47 PM, <frie...@free.fr> wrote: > Please allow me to answer my own request: based on further analysis on basic > synthetic terrain models, I figured out that r.sunmask will only work on a > projected > framework. Hence, I re-projected the WGS-84 DEM obtained from SRTM and indeed > managed > to get meaningful cast shadow representations. > > I quickly summarized some of my experiments (using GRASS 6.4.3-2 as a plugin > to QGis 2.0.1) > at http://jmfriedt.free.fr/proj_grass/projection.html which might (or might > not) be useful > to others.
Thanks for writing that up! You may consider r.sun as well in order to compute cast shadow. I played around with it recently, see http://courses.neteler.org/will-the-sun-shine-on-us/ (maybe you have seen that already posted around) Markus _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user
