Hi, Yes, it is. You want the "Data defined properties" button, which you'll see when you click on a style (in 2.6.1, it's at the bottom of the list of style options.
The variables need to be of a specific datatype/structure for each item you want to style. So Pen Width requires a double. Colour is more complex, requiring a RGBA string. The dialog shows what's necessary. Cheers, Jonathan -----Original Message----- From: qgis-user-boun...@lists.osgeo.org [mailto:qgis-user-boun...@lists.osgeo.org] On Behalf Of Mofo Yoda Sent: Tuesday, February 24, 2015 11:19 AM To: qgis-user@lists.osgeo.org Subject: [Qgis-user] Variables for colour values I wonder if it’s possible to use variables for colour values, line widths etc? I have rule-based styling with lots of rules, and I want to change the colour value in one place and not in every rule that uses the same symbol. I’ve been using variables a lot in CartoCSS styling, but I really miss them in QGIS. Since I can define project colours with names in QGIS, i thought it may be possible somehow. I’m on QGIS 2.8 for OS X. _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user This message has been scanned for viruses by MailControl - www.mailcontrol.com Click https://www.mailcontrol.com/sr/mFTpBfgLOMLGX2PQPOmvUgZ1F1vOh!vyYC82CsCGa!dzAI3m6djTRny+7419ROQTNWG5s0VsQtSURD1dro2FIg== to report this email as spam. ________________________________ HR Wallingford and its subsidiaries uses faxes and emails for confidential and legally privileged business communications. They do not of themselves create legal commitments. Disclosure to parties other than addressees requires our specific consent. We are not liable for unauthorised disclosures nor reliance upon them. If you have received this message in error please advise us immediately and destroy all copies of it. HR Wallingford Limited Howbery Park, Wallingford, Oxfordshire, OX10 8BA, United Kingdom Registered in England No. 02562099 ________________________________ _______________________________________________ Qgis-user mailing list Qgis-user@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/qgis-user