[OpenLayers-Users] Display WMS layer depending on ZoomLevel

[Paul Googlemail]

Thanks for the response. Has this worked for you with status of layer  
set to DEFAULT or ON?

Cheers

Sent from my iPhone

On 27 Oct 2009, at 18:00, "Arnd Wippermann" <arnd.wippermann at web.de>  
wrote:

> Hi,
>
> you have added minZoomLevel and maxZoomLevel to the params or your  
> WMS layer. params are used for building the WMS request. Move them  
> to the options of your WMS layer and perhaps it works. I use  
> minScale and maxScale to control the display of layers.
>
> {  gutter:15,
>    minZoomLevel : 5,
>    maxZoomLevel : 10
>    //minScale : 1000000,
>    //maxScale : 45000
> }
> Arnd
> Von: users-bounces at openlayers.org [mailto:users- 
> bounces at openlayers.org] Im Auftrag von Paul Curran
> Gesendet: Dienstag, 27. Oktober 2009 16:08
> An: users at openlayers.org
> Betreff: [OpenLayers-Users] Display WMS layer depending on ZoomLevel
>
> Hello i need your help.
>
> I currently have two layers. i would like to display one layer  
> initially then zoom in closer and display the second layer. I have  
> been trying to do it like this:
>
> var options = { maxExtent: bounds, maxResolution: 600,  
> numZoomLevels: 10};
>
> layer1 = new OpenLayers.Layer.WMS("OpenLayers WMS",
> "http://127.0.0.1/cgi-bin/mapserv.exe?", { layers: "uk", map: '/ms4w/ 
> apps/openlayers-2.5/data/uk2.map',
> minZoomLevel: 1, maxZoomLevel: 4 },
>       { gutter: 15 });
>
>
> layer2 = new OpenLayers.Layer.WMS("OpenLayers WMS",
> "http://127.0.0.1/cgi-bin/mapserv.exe?", { layers: "UK250", map: '/ 
> ms4w/apps/openlayers-2.5/data/uk2.map',
> minZoomLevel: 5, maxZoomLevel: 10},
>       { gutter: 15 });
>
>       map.addLayer(Layer1, Layer2);
>       map.zoomToExtent(bounds);
>       map.setCenter(bounds);
>       map.zoomToMaxExtent();
>
> My main problem is i can only display a layer when status is DEFAULT  
> within mapfile however i cannot hide the layer if set to this. When  
> Set to ON the layer is not displayed atall.
>
> Any help much appreciated
>
> Cheers
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