[OpenLayers-Dev] A kind of MultiLayer container

[Ivan Grcic]

On Tue, Aug 4, 2009 at 6:04 AM, Eric Lemoine<eric.lemoine at camptocamp.com> wrote:
> On Monday, August 3, 2009, Ivan Grcic <ivan.grcic at geofoto.hr> wrote:
>> Hi devs,
>>
>> I want to ask if anyone has made something like Vector/RootContainer,
>> a layer that would contain several layers, and every layer would
>> activate/deactivate on different zoomLevels.
>>
>> Simple case: 3 (or more) layers combined in one ContainerLayer
>> small scale: WMS raster layer
>> larger scales: other WMS  raster layer
>> large scale: WFS vector layer
>>
>>  Usually I always register zoomend event on map, and manually activate
>> or deactivate layers...but it got little bit boring to do that on
>> application level every time.
>>
>> I remember Alexandre did something like that but for Vector layer
>>  or http://openlayers.org/pipermail/users/2009-January/009666.html
>>
>> Anyone did something like that? (does mapfish maybe has soemthing like that)
>>  If not, can anyone just give few tips, so I could start developing it...
>
>
> Hi Ivan
>
> Can't you just set different resolution ranges in the layers?
>
> Cheers,
>
>
Tnx for replies guys,


Yes yes, im setting ranges for my layers, but I want to have only one
layer shown in layerSwitcher for group of layers.

I guess I just have to create one dummy layer with inLayerSwitcher:
true, and other layers to false. And then just register activate,
deactivate events that will turn off/on all group layers. (as alex
suggested, tnx)

I was just wondering if it would have sense to have it included in
API, not to do it manually all the time...
Cheers


>>
>> Tnx&Cheers,
>>
>>
>> --
>> Ivan Grcic
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>
> --
> Eric Lemoine
>
> Camptocamp France SAS
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>
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-- 
Ivan Grcic