Il problema del datum riconoscimento in GRASS รจ stato risolto. Di sotto la comunicazione di Paul Kelly (fix in http://trac.osgeo.org/grass/changeset/31652 )
ciao Markus On Sat, Jun 7, 2008 at 3:26 PM, Paul Kelly <[EMAIL PROTECTED]> wrote: > On Fri, 30 May 2008, Markus Neteler wrote: > >> Hello Paul, >> >> a problem came up in the Italian list: >> >> g.proj -c epsg=23033 loc=llll >> WARNING: Datum <unknown> not recognised by GRASS and no parameters found >> Location llll created! > > This is now fixed in SVN trunk. It seems at some stage there were some > changes to the way GDAL parsed PROJ.4 strings such as "+init=epsg:XXXX" - as > far as I can see it now attempts to expand the string into a full PROJ.4 > string before doing a secondary conversion to a WKT-format co-ordinate > system, and in the process the datum information is lost. I'm not sure what > the logic for this change is, but anyway I've worked around it by changing > g.proj to call OSRImportfromEPSG() directly when given the epsg= option. > However a consequence of this is that the old-style > g.proj -c proj4=init=epsg:XXXX location=newloc > will no longer work properly; you must use > g.proj -c epsg=XXXX location=newloc. > > Many thanks to Alfredo Alessandrini for the original bug report. If there > are no issues I'll backport it to 6.4 later. > > Paul > 2008/5/30 Markus Neteler <[EMAIL PROTECTED]>: > 2008/5/30 Alfredo Alessandrini <[EMAIL PROTECTED]>: >> salve, >> >> sto creando una LOCATION tramite il codice EPSG (23033), relativo alla >> proiezione ED50 / UTM 33N. >> >> ma una volta scelto il codice, mi da il seguente errore: >> >> g.proj returned the followind informational message: WARNING: Datum >> <unknown> not recognised by GRASS and no parameters found. >> >> secondo voi qualcosa non va nel file /usr/share/proj/epsg?? > > Stiamo investigando... sono in grado di replicare il problema. > Dovrebbe usare "European_Datum_1950" ma per qualche motivo > fallisce con EPSG 23033. > > Markus > -- Open Source Geospatial Foundation http://www.osgeo.org/ http://www.grassbook.org/ _______________________________________________ Iscriviti all'associazione GFOSS.it: http://www.gfoss.it/drupal/iscrizione [email protected] http://www.faunalia.com/cgi-bin/mailman/listinfo/gfoss Questa e' una lista di discussione pubblica aperta a tutti. I messaggi di questa lista non rispecchiano necessariamente le posizioni dell'Associazione GFOSS.it.
