some suggestions you don't need to remove your kml_layer, you have only to refresh the layer with the new url to the kmlfile. you can delete OpenLayers.Strategy.BBOX, because a kmlfile is always loaded in whole.
example how to refresh your layer http://gis.ibbeck.de/ginfo/apps/OLExamples/OL212/protocol_refresh/protocol_r efresh.asp Regards, Arnd http://gis.ibbeck.de _____ Von: [email protected] [mailto:[email protected]] Im Auftrag von robertico Gesendet: Samstag, 10. November 2012 06:52 An: [email protected] Betreff: Re: [OpenLayers-Users] Problem dynamic loading a KML file (refresh) After a night slogging, i found my solution; I'd like to share my solution and any suggetion is appreciated. I've created a function to add the (KML) vector layer; function AddLayer() { // If layer (kml_layer) already exists, remove it before adding the new one if (kml_layer) { map.removeLayer(kml_layer); //kml_layer.destroyFeatures(); // not sure if this is necessary. Works well without it. } // Get file name (.kml file) filename = document.getElementById('theFile').value; kml_layer = new OpenLayers.Layer.Vector("KML", { projection: map.displayProjection, strategies: [new OpenLayers.Strategy.Fixed(), new OpenLayers.Strategy.BBOX({resFactor: 1.1}), //new OpenLayers.Strategy.Cluster()], // only usefull if you want to cluster your markers protocol: new OpenLayers.Protocol.HTTP({ url: filename, format: new OpenLayers.Format.KML({ extractStyles: true, extractAttributes: true, maxDepth: 10 }) }) }); map.addLayer(kml_layer); } Also added the function to the 'onClick' event of the button; <input type="button" value="Show Markers" onClick="AddLayer()"> The hardest part was to find the right way to remove an existing layer. Tried several examples but this one works well. _____ View this message in context: Re: <http://osgeo-org.1560.n6.nabble.com/Problem-dynamic-loading-a-KML-file-refr esh-tp5015133p5015310.html> Problem dynamic loading a KML file (refresh) Sent from the OpenLayers <http://osgeo-org.1560.n6.nabble.com/OpenLayers-Users-f3910695.html> Users mailing list archive at Nabble.com.
_______________________________________________ Users mailing list [email protected] http://lists.osgeo.org/mailman/listinfo/openlayers-users
