Olá Orlando, tudo bem?
> When creating a theme of polygons, it is possible the area of the > polygon automatically appear in the attribute > > table? yes you can, just create a postgis polygon layer and add a trigger to the column where you want to store the area value. You can do it without leaving qgis with the postgis manager plugin. > Without having to make manual measurements with this tool: Measure > Area. you don't need this tool to calculate areas, you can do it with the field calculator or with the "export/add geometry columns" of the vector menu. abraços -- Giovanni -- _______________________________________________ Qgis-user mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-user
