Hi Uwe, All "map_xx" variables are only available on the map frame item itself (when it is selected) - nowhere else. Items in print composer are on the same hierarchy - so can't see each other's scope or variables in each scope. But all items in a composition can see the "composition" variables because they are one hierarchy above in the scope.
That's a limitation you can't currently overcome. It would be nice to cross-reference variables from other elements in the same hierarchy - but it is not possible currently - at least I don't know how. Andreas On 2016-06-23 13:36, Uwe Fischer wrote: > Martin, > > thank you very much for your tip, but in the variables list no variables of > type „map" show up (please see attachment). But in print composter they are > present and visible. > > Mit freundlichen Grüßen, > > Uwe Fischer > > VON: Qgis-user [mailto:qgis-user-boun...@lists.osgeo.org] IM AUFTRAG VON > Martin Stubbs > GESENDET: Donnerstag, 23. Juni 2016 12:46 > AN: qgis-user@lists.osgeo.org > BETREFF: Re: [Qgis-user] Variables in print composer > > On 23/06/16 08:30, Uwe Fischer wrote: > >> Hello List, >> >> what is the use of variables in print composer? A map frame has variables >> assigned like map_extent_height and _width. But how to make use of those >> variables? If I try to place a rectangle around the map frame using the >> determined extent variables (plus something), I cannot use the variables. >> There is a ‚data defined override' section in the Position and size dialog >> for rectangles, but when I select ‚variable' it tells me that there are no >> variables, which seems to be nonsense. >> >> Best regards, Uwe > > Uwe, > > When you select a Data_defined_override in Position and size, pick edit from > the list instead of variable. In the Expression string builder you will find > map_extent_height in the Variables list. > > Regards > Martin > > _______________________________________________ > Qgis-user mailing list > Qgis-user@lists.osgeo.org > List info: http://lists.osgeo.org/mailman/listinfo/qgis-user > Unsubscribe: http://lists.osgeo.org/mailman/listinfo/qgis-user
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