Hi,
I am doing a GetFeature on a WFS layer atop a WMS layer.The WFS layer is for
the purpose of doing GetFeature on that layer.
My code is as follows:
OpenLayers.ProxyHost = "/proxy/?url=";
var lon = 73.25;
var lat = 20.35;
var zoom = 6;
map = new OpenLayers.Map('<%=map.ClientID%>');
layer = new OpenLayers.Layer.WMS("OpenLayers WMS",
"/Mapserver/mapserv.exe?map=c:/ms4w/apache/htdocs/Shape/newwr1rec.map", {
layers: ["state", "RailwayStations"], transparent: false, format:
"image/png" }, { isBaseLayer: true });
map.addLayer(layer);
layer = new OpenLayers.Layer.WFS("MyWFS",
"/Mapserver/mapserv.exe?map=c:/ms4w/apache/htdocs/Shape/Rail_wfs.map",
{ typename: "RailwayStations", maxfeatures: 10 },
{ featureClass: OpenLayers.Feature.WFS });
select = new OpenLayers.Layer.Vector("Selection", {
styleMap:
new
OpenLayers.Style(OpenLayers.Feature.Vector.style["select"])
});
map.addLayers([layer,select]);
map.addControl(new OpenLayers.Control.LayerSwitcher());
map.setCenter(new OpenLayers.LonLat(lon, lat), zoom);
// make a GetFeature request
// map.events.register('click', map, function(e) {
// var url =
"http://localhost:81/cgi-bin/mapserv.exe?map=c:/ms4w/apache/htdocs/Shape/Rail_wfs.map&SERVICE=WFS&VERSION=1.0.0&REQUEST=GETfeature&typename=state";;
// })
control = new OpenLayers.Control.GetFeature({
protocol: OpenLayers.Protocol.WFS({
readFormat: new OpenLayers.Format.GeoJSON(),
formatOptions: {
outputFormat: "JSON"
},
url:
"/Mapserver/mapserv.exe?map=c:/ms4w/apache/htdocs/Shape/Rail_wfs.map",
featureType: "state",
featurePrefix: 'ms',
geometryName: 'the_geom',
maxFeatures: 100
}),
box:true,
multipleKey: "shiftKey"
});
control.events.register("featureselected", this, function(e)
{
alert(" in fselected");
//select.addFeatures([e.feature]);
document.getElementById('featuredetails').innerHTML +=
"<br>"+ e.feature.attributes.STATE + "<br>"
+ e.feature.attributes.AREA;
});
map.addControl(control);
control.activate();
The problems are as follows:
1) WFS layer is shown in layerSwitcher but not on the map.If I do a right
click I get options like" save picture as" which comes for a WMS layer
2) A box is drawn when I drag the mouse but the layer(select) for the
purpose of GetFeature goes off as soon as I leave the mouse. How can I have
the layer be visible on the map with some color?
3) The select layer code is from one of the examples given but I don't know
from where the it is getting the stylemap.How can put a different stylemap?
4) I want to have a circle instead of a box.What do I need to do?
5)I want to have the filters within, Interesects and outside of the box?
PLs send me the code for the filters?
Thanks for your attention & efforts.
--
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