<!DOCTYPE html>
<html>
<head>
    <meta charset="utf-8" />
    <title>Wialon Playground - Units on map</title>
    <script type="text/javascript" src="//code.jquery.com/jquery-latest.min.js"></script>
    <script type="text/javascript" src="//hst-api.wialon.com/wsdk/script/wialon.js"></script>
</head>
<body>

<!-- load map -->
<link rel="stylesheet" href="//cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.2/leaflet.css" />
<script src="//cdnjs.cloudflare.com/ajax/libs/leaflet/0.7.2/leaflet.js"></script>

<div id="map"></div>
Select unit:<select id="units"><option></option></select>
<div id="log"></div>

</body>
</html>HTML

#map{ width:500px; height:400px; }
#log{ border: 1px solid #c6c6c6; }CSS

var map, marker; // global variables

// Print message to log
function msg(text) { $("#log").prepend(text + "<br/>"); }

function init() { // Execute after login succeed
	var sess = wialon.core.Session.getInstance(); // get instance of current Session
	// specify what kind of data should be returned
	var flags = wialon.item.Item.dataFlag.base | wialon.item.Unit.dataFlag.lastMessage;

	sess.loadLibrary("itemIcon"); // load Icon Library 
	sess.updateDataFlags( // load items to current session
	    [{type: "type", data: "avl_unit", flags: flags,mode: 0}], // Items specification
	    function (code) { // updateDataFlags callback
		    if (code) { msg(wialon.core.Errors.getErrorText(code)); return; } // exit if error code
			
		    var units = sess.getItems("avl_unit"); // get loaded 'avl_resource's items
		    if (!units || !units.length){ msg("No units found"); return; } // check if units found
		    for (var i = 0; i< units.length; i++) // construct Select list using found resources
			    $("#units").append("<option value='"+ units[i].getId() +"'>"+ units[i].getName()+ "</option>");
		    // bind action to select change event
		    $("#units").change( showUnit );
	});
}

function showUnit(){ // show selected unit on map
	var val = $("#units").val(); // get selected unit id
	if(!val) return; // exit if no unit selected
	var unit = wialon.core.Session.getInstance().getItem(val); // get unit by id
	if(!unit) return; // exit if no unit
	var pos = unit.getPosition(); // get unit position
	if(!pos) return; // exit if no position
    // print message with information about selected unit and its position
	msg("<img src='"+ unit.getIconUrl(32) +"'/> " + unit.getName()+" selected. Position "+ pos.x+", "+pos.y);

	if (map) { // check if map created
        var icon = L.icon({
            iconUrl: unit.getIconUrl(32)
        });
        if (!marker) {
            marker = L.marker({lat: pos.y, lng: pos.x}, {icon: icon}).addTo(map);
        } else {
           marker.setLatLng({lat: pos.y, lng: pos.x});
           marker.setIcon(icon);
        }
        map.setView({lat: pos.y, lng: pos.x});
	}
}

function initMap() {
    // create a map in the "map" div, set the view to a given place and zoom
    map = L.map('map').setView([53.9, 27.55], 10);

    // add an OpenStreetMap tile layer
    L.tileLayer('http://{s}.tile.osm.org/{z}/{x}/{y}.png', {
        attribution: '&copy; <a href="http://gurtam.com">Gurtam</a>'
    }).addTo(map);
}

// execute when DOM ready
$(document).ready(function () {

  	wialon.core.Session.getInstance().initSession("https://hst-api.wialon.com"); // init session
    // For more info about how to generate token check
    // http://sdk.wialon.com/playground/demo/app_auth_token
	wialon.core.Session.getInstance().loginToken("5dce19710a5e26ab8b7b8986cb3c49e58C291791B7F0A7AEB8AFBFCEED7DC03BC48FF5F8", "", // try to login
		function (code) { // login callback
		    // if error code - print error message
			if (code){ msg(wialon.core.Errors.getErrorText(code)); return; }
			msg("Logged successfully");
            initMap();
            init(); // when login suceed then run init() function
	});
});
JS

Result

Source code of example Close ✕