[OpenLayers-Users] Possible to change feature style before adding feature collection?

[adsaero]

When I try that, it seems the feature doesn't render at all.  I also tried
setting the style in the feature object before adding the feature, but I get
the same result.

Some code snippets:

tracks_style = new OpenLayers.Style({
                label: "test", 
                strokeColor: "#FFFFFF",
                stroke: true,
                pointRadius: 2
            });
track_layer = new OpenLayers.Layer.Vector("Tracks", { styleMap:
tracks_stylemap });
map.addLayer(track_layer);
track_layer.events.register("beforefeaturesadded", track_layer, function (o)
{
                    alert("boo!");
                    o.features[0].style = tracks_style;
                }); 

This basically causes that first feature not to render, although the second
feature renders fine (there are two features in the feature array)

This also fails, with the same result:

testfeatures = geojson_format.read(results);
testfeatures[0].style = tracks_style;
track_layer.addFeatures(poofeatures);


I'm stumped :)



Roald de Wit-2 wrote:
> 
> Hi,
> 
> On 19/11/09 10:51, adsaero wrote:
>> I've got a collection of features (FeatureCollection) returned from a
>> server,
>> and I'd like to change the style of, say, the first feature in the
>> collection to have "stroke" set to true... but I'd like the rest of the
>> features to use the default style(s).
>>
>> Can this be done?  If so, what's the best way to do it?
>>
> You can listen to the 'beforefeaturesadded' event [1] and manipulate the
> features you like before they get added to the layer.
> 
> [1]
> http://dev.openlayers.org/apidocs/files/OpenLayers/Layer/Vector-js.html#OpenLayers.Layer.Vector.EVENT_TYPES
> 
> Regards, Roald
> 
> --
> Roald de Wit
> Software Engineer
> roald.dewit at lisasoft.com
> 
> Commercial Support for Open Source GIS Software
> http://lisasoft.com/LISAsoft/SupportedProducts/
> 
> 
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