Not sure if this is the kind of stuff you were looking.
A qui, 27/10/2016, 20:08, Nyall Dawson <nyall.daw...@gmail.com> escreveu:
> On 28 Oct 2016 1:51 AM, "DelazJ" <del...@gmail.com> wrote:
> > Hi all,
> > Is that possible to create a label which displays the x and y
> coordinates of a selected map item in the composer.
> > I suspect x(@map_extent_center) to do the trick but I'm unable to find
> how to call the map_extent_center variable in a label item as it's stuck to
> the map item afaics.
> > Any tip, please?
> It's not currently possible unless you write a python function to do this.
> I've been pondering this week about allowing items to access the variables
> from another item but need to think this through more.
> My (current) use case:
> - working on a map of a train line which consists of three vertical panels
> covering different parts of the line
> - certain elements (like label buffers) in the map style use a
> @background_color variable to data define their color
> - each map item in the composition has its own @background_color variable
> set so that this color represents a good background color for the visible
> content within that panel
> - I want to style things like North arrows to reuse the @background_color
> variable from the map item they are associated with.
> > Thanks,
> > Harrissou
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