javascript - Tracking web page via osm(open street map) -

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i need create web page track person via open street map in lat-long data sent via app installed on phone. app send lat , long in json file server in database web page take data , show path followed biker in dotted lines throughout journey. searched open layers simple examples... couldn't more info... if has done please tell me how approach in , how it. thank guys

i have show path followed person , in map, values of lat , long present in database... have show dotted line followed person.... have integrated map passing current lat , long in static data format.... facing problem dynamic fetching ... how can show dotted line i.e path followed him...

this code-- js code-

<script>   function init()    {     map = new openlayers.map("mapdiv");     var mapnik = new openlayers.layer.osm();     map.addlayer(mapnik);      var lonlat1 = new openlayers.lonlat(77.64760799999999,12.9081357).transform(         new openlayers.projection("epsg:4326"), // transform wgs 1984         new openlayers.projection("epsg:900913") // spherical mercator       );     var lonlat2 = new openlayers.lonlat(78.64760799999999,11.9081357).transform(         new openlayers.projection("epsg:4326"), // transform wgs 1984         new openlayers.projection("epsg:900913") // spherical mercator       );        var zoom = 8;      var markers = new openlayers.layer.markers( "markers" );     map.addlayer(markers);     markers.addmarker(new openlayers.marker(lonlat1));     markers.addmarker(new openlayers.marker(lonlat2));     map.setcenter(lonlat2, zoom);     map.setcenter(lonlat1, zoom);    } </script> <body onload="init();"> <p><h3 id="h3">tracking page embeded map</h3></p> <div id="mapdiv"></div>

just me dynamically fetch multiple data database , how show on map. above code static long lat values only.. thank you.

this might you: http://wiki.openstreetmap.org/wiki/openlayers_track_example

anyway example takes data .gpx file. here keep saving coordinates in local storage: 

var geolocation = new ol.geolocation({         projection: ol.proj.get('epsg:4326'),         tracking: true       }); geolocation.once('change:position', function() {         console.log(geolocation.getposition());        $rootscope.map.getview().setcenter(geolocation.getposition())       });

with coordinates, , save them in localstorage through: 

localstorage.setitem(someindex,thelocationyougot);

(remember can't store objects in localstorage, need json.stringify it!)
items localstorage, can use following: 

var objeto = json.parse(window.localstorage.getitem(someindex));

and add feature layer!

greetings!


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