Hi Afroz,
I'd guess that
features[k]
is not an instance of OpenLayers.Feature.XXX, is it?
If not you'll need to transform the thing you have
into an appropriate OL-feature and add it afterwards.
Regards,
Marc
Afroz Kannancheri wrote:
> Hi all,
>
> I have a Vector layer over a google base map as
>
> map = new OpenLayers.Map('map',map_options);
> var google = new OpenLayers.Layer.Google("Google
> Physical",google_Poptions);
> layer1 = new OpenLayers.Layer.GML("G1", "D2data.json", {
> format: OpenLayers.Format.GeoJSON,
> styleMap: build_style(),
> isBaseLayer: false});
>
> map.addLayers([google,layer1]);
>
> I have a function which runs every N seconds to update the Geojson layer by
> getting
> the new D2data.json geojson file generated in the server.
>
> The update function is as follows
> function UpdateLayer()
> {
>
> var protocol = new OpenLayers.Protocol.HTTP({
> url: "http://localhost/mystuff/s/D2data.json?sid="+Math.random(),
> format: new OpenLayers.Format.GeoJSON()
> });
>
> protocol.read({
> callback: function(response) {
> if(response.success()) {
> var features = response.features;
> map.layers[1].destroyFeatures();
> for(k in features)
> {
>
> map.layers[1].addFeatures([features[k]]);
> }
> } else {
> console.log("failure");
> }
> }
> });
> }
>
> In the above function, I destroy the existing features and fetch new
> features from the server and add them on the layer.
> The destroyFeatures() is working fine, but the addFeatures doesnt do
> anything.
>
> It would be of great help if someone could pointout whats wrong in this.
>
> Thanks and regards
> Afroz
>
>
>
>
--
Dipl.-Geogr. Marc Jansen
- Anwendungsentwickler -
terrestris GmbH & Co. KG
Irmintrudisstraße 17
53111 Bonn
Tel: ++49 (0)228 / 96 28 99 -53
Fax: ++49 (0)228 / 96 28 99 -57
Email: jan...@terrestris.de
Web: http://www.terrestris.de
Amtsgericht Bonn, HRA 6835
Komplementärin: terrestris Verwaltungsgesellschaft mbH
vertreten durch: Hinrich Paulsen, Till Adams
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