Hi Noli,
Take a look at my navigator.getcurrent location function. There's a simple
getelementbyid which dumps the lat and lon into a div. You could modify this
to spit it into your text box. good luck!
ps...I'm omitting the error handling at the bottom for the sake of space.
function initGIS(){
if (Modernizr.geolocation) {
navigator.geolocation.getCurrentPosition(showMap,handle_error);
} else {
yqlgeo.get('visitor',norm_yql_resp);
}
}
function showMap(){
var map= new OpenLayers.Map('geo_loc_map',
{
controls:[
new OpenLayers.Control.Navigation(),
new OpenLayers.Control.PanZoomBar(),
new OpenLayers.Control.LayerSwitcher(),
new OpenLayers.Control.OverviewMap()],
sphericalMercator: true,
maxExtent: new
OpenLayers.Bounds(-20037508.34,-20037508.34,20037508.34,20037508.34),
maxResolution: 156543.0399,
numZoomLevels: 10,
units: 'm',
projection: new OpenLayers.Projection("EPSG:900913"),
displayProjection: new OpenLayers.Projection("EPSG:4326")
}
);
//
var mapnik = new OpenLayers.Layer.OSM();
map.addLayer(mapnik);
//
var google_map = new OpenLayers.Layer.Google('Google Maps',{type:
google.maps.MapTypeId.HYBRID, numZoomLevels: 20});
map.addLayer(google_map);
//
navigator.geolocation.getCurrentPosition(function(position){document.getElementById('geo2').innerHTML="Latitude:
" + position.coords.latitude +
" Longitude: " + position.coords.longitude + "<p>";
var lonLat = new OpenLayers.LonLat
(position.coords.longitude,position.coords.latitude).transform
(new OpenLayers.Projection("EPSG:4326"),map.getProjectionObject());
markers.addMarker(new OpenLayers.Marker(lonLat));
map.setCenter(lonLat,14);
});
var markers=new OpenLayers.Layer.Markers("Markers");
map.addLayer(markers);
On Wed, Jul 13, 2011 at 1:02 AM, Noli Sicad <nsi...@gmail.com> wrote:
> Hi,
>
> I would like to replace the Geolocate control functionality to reading
> from the GPS from mobile devices (e.g. iPhone and iPad 2). Geolocate
> html5 is so off from the actual real coordinate (lonLat) like 500
> metres away.
>
> How are do I am going to do this in easiest and nicer way?
>
> I am able to get the my current location (i.e. lon and lat values)
> from the iPhone/ iPad GPS to HTML DOM (i.e. Textbox).
>
> e.g.
>
> jQTouch with Xcode,
>
> <ul class="edit rounded">
> <li>Longitude: <input id='lng' type="text" value='' /></li>
> <li>Latitude: <input id='lat' type="text" value='' /></li>
> </ul>
>
> Now, the question is, would I be able to get icon from the local
> directory, not from http server?
>
> In this example below, it seems that OpenLayers.Icon is retrieved from
> http server.
>
> ~~~~~~
> var icon = new OpenLayers.Icon('
> http://www.openstreetmap.org/openlayers/img/marker.png',size,offset);
> layerMarkers.addMarker(new OpenLayers.Marker(lonLat,icon));
> ~~~~~~
> from, http://wiki.openstreetmap.org/wiki/Openlayers_Track_example
>
> If not, would vector maker good option for this?
>
> In this example, http://openlayers.org/dev/examples/geolocation.html
>
> How can I mapulated this function to cater to the lon and lat values
> from the GPS?
>
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> var geolocate = new OpenLayers.Control.Geolocate({
> bind: false,
> geolocationOptions: {
> enableHighAccuracy: false,
> maximumAge: 0,
> timeout: 7000
> }
> });
> map.addControl(geolocate);
> var firstGeolocation = true;
> geolocate.events.register("locationupdated",geolocate,function(e) {
> vector.removeAllFeatures();
> var circle = new OpenLayers.Feature.Vector(
> OpenLayers.Geometry.Polygon.createRegularPolygon(
> new OpenLayers.Geometry.Point(e.point.x, e.point.y),
> e.position.coords.accuracy/2,
> 40,
> 0
> ),
> {},
> style
> );
> vector.addFeatures([
> new OpenLayers.Feature.Vector(
> e.point,
> {},
> {
> graphicName: 'cross',
> strokeColor: '#f00',
> strokeWidth: 2,
> fillOpacity: 0,
> pointRadius: 10
> }
> ),
> circle
> ]);
> if (firstGeolocation) {
> map.zoomToExtent(vector.getDataExtent());
> pulsate(circle);
> firstGeolocation = false;
> this.bind = true;
> }
> });
> geolocate.events.register("locationfailed",this,function() {
> OpenLayers.Console.log('Location detection failed');
> });
> ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Any ideas and implementation how to do this?
>
> Thanks.
>
> Regards, Noli
> _______________________________________________
> Users mailing list
> us...@lists.osgeo.org
> http://lists.osgeo.org/mailman/listinfo/openlayers-users
>
_______________________________________________
Users mailing list
us...@lists.osgeo.org
http://lists.osgeo.org/mailman/listinfo/openlayers-users
