[OpenLayers-Users] changing style of a WFS layer

[Lehtonen, Mika]

Hi Alexandre,
interesting example.
My problem is that I can't figure out how to force the wfs layer to read 
the new style parameters after the user has clicked zoom button. I have 
tried all sorts of, occassionaly desperate, methods for make it to do 
that. Like mergeNewParams and redraw. I switched them for example to 
map.event listener and tried to listen to any "sounds" of zooming; like 
zoomend. And those listeners sure did trigger the functions they were 
to, but the wfs layer stayed with the same style. I guess the easiest 
variable to use here, would be map.getZoom( ).
- mika -

Alexandre Dube kirjoitti:
> Hi,
>
> Take a look at this example :
>
> http://dev.openlayers.org/sandbox/vector-behavior/examples/strategy-cluster.html 
>
>
> You could try to change the radius : function(feature) using 
> feature.layer.map.zoom
>
> Alexandre
>
> Lehtonen, Mika wrote:
>> Hi,
>>
>> probably I'm asking something that's been asked for several times, 
>> but I just couldn't find the answer.
>>
>> I have a WFS layer which has points. My intention is to render those 
>> points with a style depending on the zoom level. So more you zoom in, 
>> bigger the points should be. I have styleMap defined in my wfs layer 
>> definition. I tried to do dynamic out of it, but didn't succeed. Even 
>> if I redraw my wfs layer, the styles defined at the first place stays.
>>
>> So, what would be a proper approach in this challenge?
>>
>> Here's my "static" code:
>>
>>             shpStyle = new OpenLayers.StyleMap({
>>         pointRadius: 3,
>> strokeColor: "red",
>> strokeWidth: 1,
>> strokeOpacity: 1,
>>         fillColor: 'black',
>> fillOpacity: 0.2
>>             });
>>
>>
>>     fserver = new OpenLayers.Layer.WFS("Uploaded SHP", 
>> "http://10.8.0.1:8080/cgi-bin/featureserver-1.12/featureserver.cgi/shape?format=WFS", 
>>
>>     {typename: "KUNTA"},{extractAttributes: false, projection: new 
>> OpenLayers.Projection("EPSG:2393"), styleMap: shpStyle});
>>
>> - mika -
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>
>