[OpenLayers-Users] Re: Controll the Layervisibility by code

[Slawomir Messner]

Hi,
http://dev.openlayers.org/releases/OpenLayers-2.10/doc/apidocs/files/OpenLayers/Map-js.html#OpenLayers.Map.getLayersByName
var layers = Map.getLayersByName(name);
if(layers.length > 0) {
     layers[0].setVisiblity(true);
     layers[i].redraw();
}
if you are sure name is unique or
for(var i = 0; i <layers.length > 0 ;i++){
     layers[i].setVisiblity(true);
     layers[i].redraw();
}

Am 18.02.2011 10:47, schrieb Jan Tappenbeck:
> Am 18.02.2011 10:09, schrieb Dominik Mikiewicz:
>> Map.layers[i].setVisibility(true);
>> Map.layers[i].redraw();
>
> hi !
>
> but i search an alternative-way so set the visibilty to the layer by 
> the name - not the index i ?!?!??!
>
> regards Jan :-)
>
>
>>
>> -----Original Message-----
>> From: openlayers-users-bounces at lists.osgeo.org
>> [mailto:openlayers-users-bounces at lists.osgeo.org] On Behalf Of Jan
>> Tappenbeck
>> Sent: Friday, February 18, 2011 8:42 AM
>> To: users at openlayers.org
>> Subject: [OpenLayers-Users] Controll the Layervisibility by code
>>
>>
>>
>>    hi !
>>
>> it is possible to define the visibility of a layer in the moment of
>> definition like
>>
>>       map.addLayer(new OpenLayers.Layer.OSM.Toolserver('osm-labels-en',
>> {isBaseLayer: false, visibility: true}));
>>
>>
>> but is it possible to control the visibility to a later time by code ??
>>
>> i found following example:
>>
>> for(var i=0;i<map.layers.length;i++)
>> {    Msg += map.layers[i].name + " :: " + map.layers[i].visibility + 
>> "\r\n";
>> }
>>
>> but how to define the status exactly to a layer-variable-name? [i] is 
>> not a
>> name ?!?!?
>>
>>
>>
>> regards Jan :-)
>>
>>
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>
>
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