On 04/02/2014 08:19 PM, [email protected] wrote: > Hello. I have a layer of meteorological stations with temporal information > in PostGIS. Some of the stations have variables with null values. In QGIS v2.3 > (Ubuntu 13.10), null values are displayed correctly in the attribute table. > However, when displaying the label is treated as a value of 0, similarly when > I perform an operation interpolation (IDW algorithm from the raster menu), > where this result should ignore null values stations. > > My question is, is this a bug in QGIS?. > > Attached a screenshot trying to explain the results of interpolation and > labeled, possibly wrong with null values. > > https://drive.google.com/file/d/0B9J3L0xnIeLZLWRtSkJLeXp1RzA > > regards, > > Samuel Mesa, >
Might be a bug, I would suggest creating a Postgis View that filters out the nulls and work with that. Thanks, Alex _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
