Hi Luigi, some time ago we have discussion about having mupltiple map canvaces in QGIS and even there was experimental patch for this [0].
But this is a very complex topic with many open questions. Maybe we should start new discussion on this topic. [0] https://hub.qgis.org/issues/1622 2014-10-06 13:18 GMT+03:00 Luigi Pirelli <[email protected]>: > Good to know :) > > during hackfest, surfing the code with Jürgen to hunt a blocker bug, I > noticed that there where a lot use of the function > QgisApp::instance()->mapCanvas() => some functions at the "app" level > refers only to a unique canvas reducing the ability to interact with > multiple canvas. > > it's a feature or really a limit? > > regards, Luigi Pirelli > > On 31 July 2014 10:21, Nathan Woodrow <[email protected]> wrote: >> Yes it can be done. I'm working on a plugin at the moment and as a core >> feature. >> >> Nathan >> >> On Jul 31, 2014 6:16 PM, "Sören Gebbert" <[email protected]> >> wrote: >>> >>> Dear list, >>> i would like to know if it is possible to implement a plugin in QGIS >>> to overlay two map layer for interactive comparison, like the Map >>> Swipe tool in GRASS GIS[1,2]. >>> >>> If it is possible, what would be the best approach to implement it? >>> >>> Many thanks in advance, >>> Best regards >>> Soeren >>> >>> [1] http://grass.osgeo.org/grass70/manuals/wxGUI.mapswipe.html >>> [2] https://www.youtube.com/watch?v=xc7YLIYbsP0 >>> _______________________________________________ >>> Qgis-developer mailing list >>> [email protected] >>> http://lists.osgeo.org/mailman/listinfo/qgis-developer >> >> >> _______________________________________________ >> Qgis-developer mailing list >> [email protected] >> http://lists.osgeo.org/mailman/listinfo/qgis-developer > _______________________________________________ > Qgis-developer mailing list > [email protected] > http://lists.osgeo.org/mailman/listinfo/qgis-developer -- Alexander Bruy _______________________________________________ Qgis-developer mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/qgis-developer
