В Fri, 17 Aug 2012 17:52:59 +0200 celati laurent <lcel...@latitude-geosystems.com> пишет:
> Hello, > > I noticed displaying troubles into Qgis 1.8 for one of my Postgis > raster layer. The raw file (.tif) is a file with a small size and up > to now i have succeed in importing raster files with a biggest size. > For information : size of the raw file : 194 MO / Size of generated > sql file : 44.2 MO. > > I send you by attachment 2 SS : 1/ representation of raw tif file > into Qgis 1.8 & 2/ representation of Postgis raster layer into Qgis > 1.8 > > Can you help me please to find the cause of the problem? > > In advance, thank you very much for your help. > > Regards. > > Laurent Celati. > > Hi! I think the roadmap to solve this problem will be: 1) Does Postgis contains correct raster? You can check it using JUMP gis and query: SELECT ST_AsBinary((ST_DumpAsPolygons(rastr)).geom), (ST_DumpAsPolygons(rastr)).val FROM rastr_tbl; where rastr_tbl your table, rastr - field with rastr. It will return rastr converted into polygins(and which can be viewed by JUMP) If picture you will see will be like on tif - there are correct rastr in DB. If no - problem in raster convertion. 2) If postgis raster is correct, what Qgis module are you using to show raster? wktraster? If yes, does it says some errors? Maybe, problem in color stretching? Maybe problem in some error with BAND processing? _______________________________________________ postgis-users mailing list postgis-users@postgis.refractions.net http://postgis.refractions.net/mailman/listinfo/postgis-users
