Hi All: I use QgsGraduatedSymbolRendererV2 to simulate colorbar (like matplotlib.colorbar) use rendererV2.setClassAttribute to show using certain field But there are some feature where its value of that field is NULL I found that value NULL seems to be shown as value zero (range 0 - 0 ) Could I distinguish value NULL & zeros with different symbol? or Could I make a symbol for NULL value?
THX -- View this message in context: http://osgeo-org.1560.n6.nabble.com/How-to-Set-Symbol-to-Vector-Layer-that-value-is-NULL-tp4880847p4880847.html Sent from the Quantum GIS - Developer mailing list archive at Nabble.com. _______________________________________________ Qgis-developer mailing list Qgis-developer@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-developer