Hi, I am forwarding this issue from the QGIS user mailing-list.
When you have adjacent polygons and render them with just fills and no borders there are rendering artefacts (thin lines shining through from the white background) coming from anti aliasing. See http://hub.qgis.org/issues/10984 and the email-thread starting at http://lists.osgeo.org/pipermail/qgis-user/2014-July/028603.html I am pretty sure this is an issue of the qt-rendering library. Either there is a rendering setting that helps to solve the issue or there is probably not much we can do. I am pretty sure the problem also disappears if you disable anti aliasing. This issue was probably already discussed before? I know that some rendering libraries, such as AGG solved this issue - see http://www.antigrain.com/screenshots/ and search for "adjacent polygons" in the text. Any thoughts? Andreas _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
