Thank you very much Phil. I got it. I am sharing the code for all my
friends. this code first checks if the layer is empty and then proceed. the
clearData() is to do with destroying.
if(wfs_layer) {
map.removeLayer(wfs_layer);
clearData(wfs_layer);
}
var radiusPoint = new OpenLayers.Geometry.Point([longitude, latitiude]);
var propertyFilter = new OpenLayers.Filter.Spatial({
type:OpenLayers.Filter.Spatial.BBOX,
property:'the_geom',
value:new OpenLayers.Bounds(extreme_x,extreme_y,minimum_x,minimum_y)
});
wfs_layer = new OpenLayers.Layer.Vector("settlements", {
strategies: [new OpenLayers.Strategy.BBOX()],
filter: propertyFilter,
protocol: new OpenLayers.Protocol.WFS({
version: "1.1.0",
url: "http://192.168.1.19:8081/geoserver/wfs";,
featureType: "settlements",
featureNS: "www.gospatial.com",
srsName: "EPSG:900913",
visibility: true,
}),
})
map.addLayers([wfs_layer]);
On Mon, Apr 8, 2013 at 3:13 AM, Phil Scadden <p.scad...@gns.cri.nz> wrote:
> >How can i redraw or update the wfs layer after each spatial query.
>
> The control you are using draws the features returned to a vector layer
> that you must have specified when you created the control.
> Do a layer.destroyFeatures() call on that layer.
>
>
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--
*Thanking you,*
*D.K Siva Kumar,*
*
*
Research Engineer,
Indian Institute for Human Settlement (iihs),
tharangavana,
*sadashivanagar,*
Bangalore-15
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