Hi Alain,
This has been changed in 3.x as there is no single map anymore, but
there could be multiple map canvases per project.
However, there is a new variable called "@map_scale" which you can use
instead. Note that this variable is only available in some context, e.g.
if you work on the symbology or labeling of a layer representation,
where it is clear what canvas you are refering to.
Hope this helps,
Andreas
On 2018-08-02 07:51, FERRATON Alain (Chef de groupe) -
SG/SPSSI/CPII/DOO/ET wrote:
> Hi,
>
> I no longer see in QGIS 3.x the $scale function in expressions?
>
> is there a possibility to recover the scale of the canvas ?
>
> Regards
> Alain
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