Dear all, sorry for picking this up so late, I just got around to reading through the latest 1100 list posts for the first time in weeks!
I have recently updated r.xtent and made it a lot more robust, fixing all known issues: http://www.quantarch.org/files/r.xtent.tar.gz You will have to compile it yourself as explained on the GRASS add-ons page: http://grass.osgeo.org/wiki/GRASS_AddOns No binaries yet and no time to create any, sorry. The new version also includes normalization of the weight attribute [0..1] which is very important for stable model behavior. I have removed all options for automatic generation of cost surfaces, as those were clunky calls to the r.walk and r.cost modules which did nothing except complicate the r.xtent user interface. You now have to generate your own cost surfaces (if needed) for each site and put the name of the cost surface map for the site into the site map attribute table. Pathways and boundaries are working again. Note, however that when you add line features to raster cost maps, there will be diagonal gaps between the cells that make up the line if it "bends" in any direction. To close those, use: http://www.quantarch.org/files/r.burn.frict.sh Otherwise, the cost surface algorithm will "slip" through the gaps ... Note that the HTML manual page is now out-of-date the only current information is in the r.xtent program options. I would like to commit r.xtent to the GRASS Add-ons repository some time, but it cannot go there until the HTML manual page has been revised. I don't have any time to do that right now, so if anyone feels like helping with that, I'd be very grateful. Best, Ben Leonidas Liakos wrote: > You have to ask Benjamin for a copy of r.xtent. > > --- Στις Κυρ., 26/07/09, ο/η Lars Forseth <lars.fors...@ntfk.no> έγραψε: > >> Από: Lars Forseth <lars.fors...@ntfk.no> >> Θέμα: SV: Re: [GRASS-user] Weighted Voronoi diagram >> Προς: "Leonidas Liakos" <leonidas_lia...@yahoo.gr>, "GRASS user list" >> <grass-user@lists.osgeo.org>, "MORREALE Jean Roc" <jr.morre...@enoreth.net> >> Ημερομηνία: Κυριακή, 26 Ιούλιος 2009, 20:45 >> Hi! >> Is this extension (r.xtent) available for general use? (I >> would like to apply the xtent methodolgy on the large mounds >> and the iron age political landscape of power In Trondelag, >> Norway) >> >> Regards >> Lars Forseth >> >> --------------------------- >> Lars Forseth >> Arkeolog/archaeologist >> WWW.NTFK.NO >> 97528143 >> --------------------------- >> >> ----- Opprinnelig melding ----- >> Fra: Leonidas Liakos <leonidas_lia...@yahoo.gr> >> Sendt: 25. juli 2009 17:44 >> Til: GRASS user list <grass-user@lists.osgeo.org>; >> MORREALE Jean Roc <jr.morre...@enoreth.net> >> Emne: Re: [GRASS-user] Weighted Voronoi diagram >> >> >> Well, I have use r.xtent of Benjamin Ducke and it works. >> You can see the result in my personal site: >> >> http://www.geographer.freehost.gr/gis/58--o-xtent.html?showall=1 >> >> Unfortunately, the article is in greek but you can see the >> map of r.xtent here: >> http://www.geographer.freehost.gr/images/stories/gis_xtent/XTENT_GR.jpg >> >> >> >> ___________________________________________________________ >> >> Χρησιμοποιείτε Yahoo!; >> Βαρεθήκατε τα ενοχλητικά >> μηνύματα (spam); Το Yahoo! Mail >> διαθέτει την καλύτερη δυνατή >> προστασία κατά των ενοχλητικών >> μηνυμάτων http://login.yahoo.com/config/mail?.intl=gr >> >> _______________________________________________ >> grass-user mailing list >> grass-user@lists.osgeo.org >> http://lists.osgeo.org/mailman/listinfo/grass-user >> > > > > ___________________________________________________________ > Χρησιμοποιείτε Yahoo!; > Βαρεθήκατε τα ενοχλητικά μηνύματα (spam); Το Yahoo! Mail > διαθέτει την καλύτερη δυνατή προστασία κατά των ενοχλητικών > μηνυμάτων http://login.yahoo.com/config/mail?.intl=gr > > _______________________________________________ > grass-user mailing list > grass-user@lists.osgeo.org > http://lists.osgeo.org/mailman/listinfo/grass-user > > -- Benjamin Ducke Senior Geospatial Consultant OA Digital Janus House Osney Mead OX2 0ES Oxford, U.K. ++44 (0)1865 980758 benjamin.du...@oxfordarch.co.uk http://oadigital.net ------ Files attached to this email may be in ISO 26300 format (OASIS Open Document Format). If you have difficulty opening them, please visit http://iso26300.info for more information. _______________________________________________ grass-user mailing list grass-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/grass-user