[Qgis-user] Atlas: Is there a way to synchronize canvas to atlas preview?

[Hugo Mercier]

Hi,

For information, we are going to add the possibility to use a list of
pre-defined scales to the atlas, thanks to the City of Uster. Each atlas
feature will be zoomed in to the scale that best fit.

I am not sure it covers Bernd's use case, but may help.

Le 21/04/2014 09:28, kimaidou a écrit :
> Hi all
> 
> Considering the atlas scale settings, what about being able to use an
> expression to define the scale to use feature by feature ? This way we
> could use a set of scales instead of choosing only one, and so we can
> know in advance how to set the layers properties like labels and style
> to render as desired for each scale.
> 
> Michael
> 
> 
> 2014-04-21 2:33 GMT+02:00 Nyall Dawson <nyall.dawson at gmail.com
> <mailto:nyall.dawson at gmail.com>>:
> 
> 
>     On 14/03/2014 12:28 am, "Bernd Vogelgesang"
>     <bernd.vogelgesang at gmx.de <mailto:bernd.vogelgesang at gmx.de>> wrote:
>     >
>     > Hi,
>     > I wonder if there is a way to synchronize the maps canvas with the
>     Atlas preview (like with the georeferencer where the bitmap gets
>     synced with the map canvas or vice versa)
>     > This would be quite handy for adjusting the labelling in case I
>     need to. Labelling and the adjusting of it for the final layout is
>     by far the most time-consuming aspect of my hole project. I use the
>     "Layer to labelled layer"-plugin to store my corrections.
>     >
>     > My workflow right now is to prepare the Atlas coverage and click
>     through the individual preview items (10% margin), then activate the
>     coverage attribute table, search for the coverage item, select it,
>     zoom to it, deactivate the selection, then read the scale for the
>     atlas item and write it into to canvas scale to have the same
>     representation on the canvas as in the atlas preview.
>     > Now I can adjust my labels (drag them to better positions) in the
>     canvas and can be sure that they will look the same in the Atlas export.
>     >
> 
>     Hi Bernd,
> 
>     This is a really good idea. I've just added a button to the map item
>     properties in the composer: "View extent in map canvas". This sets
>     the main map canvas to match the extent of the current map item.
>     Does this sound like the kind of thing you are after?
> 
>     Nyall
> 
> 
> 
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-- 
Hugo Mercier
Oslandia