Hi again,
I'm trying to display a vector layer (feed data as KML) and I'm trying
to dynamically set some variables that are sent server-side for processing.
The layer definition is the following:
locations = new OpenLayers.Layer.Vector("Alarm Locations", {
projection: map.displayProjection,
minResolution: 1, maxResolution: 38,
strategies: [new OpenLayers.Strategy.BBOX()],
protocol: new OpenLayers.Protocol.HTTP({ *url:
"kml_locations.pl"*, format: new OpenLayers.Format.KML({ extractStyles:
true, extractAttributes: true })})});
map.addLayer(locations);
On some event (button pressed) I use a javascript function to replace
the "url" value from the layer definition with a url similar to:
"kml_locations.pl?key1=value1&key2=value2". After this I call
*layer.refresh({force: true});
*From analysing the traffic to the web server I can see that the layer
refresh is called on the old url value (kml_locations.pl) even if the
attribute locations.protocol.url is set to the value I imposed.
My question is: when the layer is refreshed - which URL is used (is
there a cached value)? Can this be overwritten? Or do I need to create a
new Protocol object?
Thanks,
Adrian
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