<div dir="ltr"><div><div>Very cool solution !<br><br></div><div>Could you give a better estimate of run time?<br></div><div>(example of DEM resolution, time?)<br></div>Cheers,<br></div>RĂ©mi-C<br></div><div class="gmail_extra"><br><div class="gmail_quote">2015-03-09 9:45 GMT+01:00 Paolo Cavallini <span dir="ltr"><<a href="mailto:cavallini@faunalia.it" target="_blank">cavallini@faunalia.it</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Il 09/03/2015 04:16, Mark Wynter ha scritto:<br>
<span class="">> An example of how you can generate Viewsheds in PostGIS via PL/R and Grass using a single SQL query statement.<br>
><br>
> CREATE OR REPLACE FUNCTION generate_viewshed(coordxy text) RETURNS text as<br>
<br>
</span>Hi all.<br>
Please note that in GRASS7, recently released, r.los has been replaced<br>
by the (much more efficient) r.viewshed.<br>
All the best.<br>
<span class="HOEnZb"><font color="#888888"><br>
--<br>
Paolo Cavallini - <a href="http://www.faunalia.eu" target="_blank">www.faunalia.eu</a><br>
QGIS & PostGIS courses: <a href="http://www.faunalia.eu/training.html" target="_blank">http://www.faunalia.eu/training.html</a><br>
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