[Qgis-user] Switch on only 1 layer of a group

[aperi2007]

Hi Salvatore,

thx for hint.
It is a very interesting feature.
I dont know it.

But unfortunately it dont seem to be what I need.

My need is showing the the user all the layer of a group.

they are all wms layer of kind OFC ortophoto, and each of them cover all 
the land.
So If perfectly unuseful for the user turn on more than one layer at 
same time.
So the need is avoid that the user turn off more than one of them.

This is a standard feature in some webgis framework.
And it will be useful aso in a qgis project to avoid that the user could 
turn on some layers that are not
useful to see both at the same time.
And if turn on more than one at the same time it see only the upper (the 
other are covered) but the
time to show the map and the network traffic is for all of them.

AFAIK this feature dont seem to be available so I'm evaluating if is 
possible to support it with a few of python code in an action.

A.


Il 14/11/2014 08:53, Salvatore Larosa ha scritto:
> Hi,
>
> On Fri, Nov 14, 2014 at 7:33 AM, Andrea Peri <aperi2007 at gmail.com> wrote:
>> Hi, I need to set a qgis project to turn on only 1 layer from a group. When
>> a layer is turn on the others should be turn off.
>> I guess this is not possibile from group properties, but is possibile to set
>> an action to turn off every layer in a group other than the actual layer
>> turn on   ?
> I guess what you are looking for is adding a "Preset" in legend tree.
> This is a new feature found in 2.6.
> Turn off all layers and activate the only layer which you want display
> then add a Preset (from eye icon).
>
> Best Regards,
> -SL
>
>