On Thu, Apr 17, 2008 at 05:36:18PM +0200, we recorded a bogon-computron collision of the <[EMAIL PROTECTED]> flavor, containing: > Dylan Beaudette wrote: >> >> There is also an open source application called 'splat' : >> http://www.qsl.net/kd2bd/splat.html >> >> I do not know if splat can account for near-surface conditions (i.e. >> Fresnel Zone) or higher elevation atmospheric parameters (ionosphere). >> >> It would be nice to have a couple of more robust LOS-like modules in >> GRASS for this type of work. >> > > from the description on the web page it seems that Fresnel Zones are in > SPLAT, at least in recent versions. > > I will have a look at it, tomorrow. >
SPLAT is pretty cool, and if all you want is to compute some RF coverage maps it works well as a standalone application. It would make an interesting project for GRASS integration. As distributed, SPLAT only works when you give it digital elevation models in a very specific file format, and it produces PPM output (not georeferenced) to display its results. I've often thought that it would be cool to adapt it to a GRASS module that can work with any GRASS elevation data and produce a GRASS raster of RF loss and radio coverage instead of an ungeoreferenced image file. SPLAT itself is a fairly simple program once you get digging in it (the math is not simple, but the code structure is), but the integration project has always been too daunting for me. -- Tom Russo KM5VY SAR502 DM64ux http://www.swcp.com/~russo/ Tijeras, NM QRPL#1592 K2#398 SOC#236 AHTB#1 http://kevan.org/brain.cgi?DDTNM "And, isn't sanity really just a one-trick pony anyway? I mean all you get is one trick, rational thinking, but when you're good and crazy, oooh, oooh, oooh, the sky is the limit!" --- The Tick _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user