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List:       grass-user
Subject:    [GRASS-user] raster module for travel time calculations (updated)
From:       marchesini () unipg ! it (ivan marchesini)
Date:       2007-12-30 5:29:08
Message-ID: 1199011447.12977.19.camel () ivangeo
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Thank you very much for your work Kristian...
really...
Cheers 
Ivan

Il giorno dom, 30/12/2007 alle 09.44 +0100, jesbergwetter@arcor.de ha
scritto:
> Dear GRASS developers and users,
> 
> I am using GRASS GIS for some hydrological applications. For some questions like \
> flood prediction it is useful to estimate the travel time of surface water in a \
> basin to the outlet. Therefor I've developed a raster program "r.traveltime" which \
> calculates the travel time for each cell in a basin from outputs of r.watershed and \
> r.fill.dir. There is much literature about this procedure available but there's a \
> lag of available software (GRASS and even ArcGIS do not come with this function). \
> The personal need an the lag of available programs were the reason for me to \
> develop a new program for GRASS GIS. I am not a programming expert, so the program \
> is very simple and far away from being perfect. I submitted this tool to the GRASS \
> Wiki addon page. 
> In November I have already posted r.traveltime to the GRASS weblist mailing list. \
> Recently I've found some bugs in the program. I hope it works correctly now. 
> r.traveltime is available here:
> http://home.arcor.de/jesbergwetter/main_sw.html
> 
> Best regards
> 
> Kristian F?rster
> 
> 
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-- 
Ti prego di cercare di non inviarmi files .doc, .xls, .ppt, .dwg.
Preferisco formati liberi.
Please try to avoid to send me  .doc, .xls, .ppt, .dwg files.
I prefer free formats.
http://it.wikipedia.org/wiki/Formato_aperto
http://en.wikipedia.org/wiki/Open_format

Ivan Marchesini
Department of Civil and Environmental Engineering
University of Perugia
Via G. Duranti 93/a 
06125
Perugia (Italy)
Socio fondatore GFOSS "Geospatial Free and Open Source Software" http://www.gfoss.it
e-mail: marchesini@unipg.it
        ivan.marchesini@gmail.com
tel: +39(0)755853760
fax (university): +39(0)755853756
fax (home): +39(0)5782830887
jabber: geoivan73@jabber.org


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