Hello, Open the layer attribute table, create a new (real) field (or select an existing field) and select the $area function under Geometry. Cheers, *Renato T. de Saboya* Universidade Federal de Santa Catarina Programa de Pós-Graduação em Arquitetura e Urbanismo (PósArq) Urbanidades <http://urbanidades.arq.br> | Infoarq <http://infoarq.arq.ufsc.br/> | PósArq <http://posarq.ufsc.br/renato-t-de-saboya/> | Academia.edu <http://ufsc.academia.edu/RenatoSaboya> | ResearchGate <http://www.researchgate.net/profile/Renato_Saboya>
On 17 August 2017 at 16:05, Ricardo Thompson <[email protected]> wrote: > HI]i, > > I have a polygon vector layer and want to derive an area attribute to use > to calculate the density of schools in each polygon. Can somebody help? > > Thanks, > > Ricardo > _______________________________________________ > Qgis-user mailing list > [email protected] > List info: https://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
_______________________________________________ Qgis-user mailing list [email protected] List info: https://lists.osgeo.org/mailman/listinfo/qgis-user Unsubscribe: https://lists.osgeo.org/mailman/listinfo/qgis-user
