Dear Jorge, The NoData value seems indeed at the origin of the problem:
$ gdalinfo RoadDensity_2002_2006_CV_UTM19_25m.tif | grep NoData NoData Value=nan In my other density maps, there was no 'NoData value' (the same command returns nothing). It thus seems that I have some NAs in my map, which are not handled correctly. After his request, I sent the map to Pierre Racine who is going to have a look at it to find the problem. Thanks a lot, Mathieu. Le 2011-02-11 09:02, Jorge Arévalo a écrit : > Hi Mathieu > > 2011/2/11 Mathieu Basille <basi...@ase-research.org>: >> Hi Jorge, >> >> Thx for the answer! Seems I did a nice mess with the install, because I did >> install it with the --with-raster configure option! I'll try to fix it as >> soon as possible (I'm not on the same computer right now, so that it'll have >> to wait a bit). Do you think it would be safer to reinstall everything, in >> order to have a fresh install? >> > > I think you should recompile PostGIS with PostGIS Raster again (first > svn update) and then create a new and clean database and follow the > instructions to postgis-raster-enable it > > ./configure --with-raster > make > make install > createdb <your_database> > createlang plpgsql <your_database> > psql -f postgis/postgis.sql -d <your_database> > psql -f spatial_ref_sys.sql -d <your_database> > psql -f raster/rt_pg/rtpostgis.sql -d <your_database> > >> I will also check the NAs of the map (that's weird, too: there are no NAs on >> this map, but I guess they are internally set anyway). What puzzled me is >> that it worked for other maps with the same procedure... >> >> I'll let you know, thx again! >> Mathieu. >> > > Check the NODATA with gdalinfo, just in case. > > Best regards, > -- ~$ whoami Mathieu Basille, Post-Doc ~$ locate Laboratoire d'Écologie Comportementale et de Conservation de la Faune + Centre d'Étude de la Forêt Département de Biologie Université Laval, Québec ~$ info http://ase-research.org/basille ~$ fortune ``If you can't win by reason, go for volume.'' Calvin, by Bill Watterson. _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
