how can i get the coordinates value on drawing of polygon at each mouse
click , actually i want to store each coordinates i clicked during vector
drawing.
currently i use this for vector drawing controls but at time of drawing i
cannot get the coordinates at each point i clicked during drawing.
controls = {
point: new OpenLayers.Control.DrawFeature(vectors,
OpenLayers.Handler.Point),
line: new OpenLayers.Control.DrawFeature(vectors,
OpenLayers.Handler.Path),
polygon: new OpenLayers.Control.DrawFeature(vectors,
OpenLayers.Handler.Polygon),
drag: new OpenLayers.Control.DragFeature(vectors),
select: select,
regular: new OpenLayers.Control.DrawFeature(vectors,
OpenLayers.Handler.RegularPolygon,
{ handlerOptions: { sides: 5} }),
modify: new OpenLayers.Control.ModifyFeature(vectors)
};
for (var key in controls) {
map.addControl(controls[key]);
}
and for reading mouse i use :
map.addControl(new
OpenLayers.Control.MousePosition({element:document.getElementById("longlats"),
numdigits:3}));
if it is in navigation only mode i can read and store mouse click as :
OpenLayers.Control.Click = OpenLayers.Class(OpenLayers.Control, {
defaultHandlerOptions: {
'single': true,
'pixelTolerance': 0 //, // 'stopSingle': false
},
initialize: function(options) {
this.handlerOptions = OpenLayers.Util.extend(
{}, this.defaultHandlerOptions
);
OpenLayers.Control.prototype.initialize.apply(
this, arguments
);
this.handler = new OpenLayers.Handler.Click(
this, { 'click': this.trigger }, this.handlerOptions
);
},
trigger: function(e) {
var lonlat = map.getLonLatFromViewPortPx(e.xy);
var pos = "Longitude: " + lonlat.lon + " E, <br/>Latitude: " +
lonlat.lat + "N"; // alert("You clicked near " + lonlat.lat + " N, "
+lonlat.lon + " E");//OpenLayers.Util.getElement("longval").innerHTML = pos;
document.data1.longval.value = lonlat.lon;
document.data1.latval.value = lonlat.lat;
but i don't got idea how can i combine these all to function together while
drawing vector point, line and polygon
/nabin,
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