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Note that the HTML manual page is now out-of-date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.forseth@ntfk.no> έγραψε:
Από: Lars Forseth <lars.forseth@ntfk.no>
Θέμα: SV: Re: [GRASS-user] Weighted Voronoi diagram
Προς: "Leonidas Liakos" <leonidas_liakos@yahoo.gr>, "GRASS user list" <grass-user@lists.osgeo.org>, "MORREALE Jean Roc" <jr.morreale@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_liakos@yahoo.gr>
Sendt: 25. juli 2009 17:44
Til: GRASS user list <grass-user@lists.osgeo.org>;
MORREALE Jean Roc <jr.morreale@enoreth.net>
Emne: Re: [GRASS-user] Weighted Voronoi diagramWell, 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.ducke@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.
