Which version of QGIS are you using? The later ones (certainly 2.12) allows use of a Virtual Attribute. In field calculator – check the box for ‘create virtual field’ and set the correct time to hold geometric area. This should then update itself accordingly.
Regards, Graeme From: Qgis-user [mailto:[email protected]] On Behalf Of Josefine Petrenz Sent: 10 February 2016 09:18 To: [email protected] Subject: [Qgis-user] Correct the attribute table automatically hej hej, at first, I would like to apologize for my english. I have a shape-file with several areas. In my attribut table, each area has an information about the area size. Step by step the areas become bigger or smaller. Every time, when this happened, i have to recalculate the area size. is there a way, that the area size correct automatically in the attribute table, when i change the area? thanks in advance josi This message has been verified and checked by company's antispam system. Click here<https://www.mailcontrol.com/sr/IG4r42LTjxfGX2PQPOmvUjDF5G4QKHNh7+buzQHjT+VOES0TQhTvd7PO2LidEyoxpIm6tmjn7Qj36NGKki70Ug==> to report this message as a spam. ======================================================== This message has been scanned for malware. This message and any attachments (the "message") are confidential, intended solely for the addressees, and may contain legally privileged information. Any unauthorised use or dissemination is prohibited. E-mails are susceptible to alteration. Neither our company or any of its subsidiaries or affiliates shall be liable for the message if altered, changed or falsified. ========================================================= Ce message a ete verifie et ne contient pas de programme malveillant. Ce message et toutes les pieces jointes (ci-apres le "message") sont confidentiels et susceptibles de contenir des informations couvertes par le secret professionnel. Ce message est etabli a l'intention exclusive de ses destinataires. Toute utilisation ou diffusion non autorisee est interdite. Tout message electronique est susceptible d'alteration. Notre societe et ses filiales declinent toute responsabilite au titre de ce message s'il a ete altere, deforme falsifie. =========================================================
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