[OpenLayers-Users] changing style of a WFS layer

[Alexandre Dube]

Hi Mika,

  Try to remove all listeners, you don't need them.  There's no need to 
force of a new style, the context should already change the radius  
value before drawing each features ( didn't try, but I think it should 
do it ).

Best of luck,

Alexandre

Lehtonen, Mika wrote:
> 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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>>>   
>>
>>


-- 
Alexandre Dubé
Mapgears
www.mapgears.com