javascript - google maps directions service not showing route -


i used simple directions service api sample provided google maps api, while map seem adjust show 2 different points, there no route or markers plotted.

directions-simple

here have:

var directionsdisplay;         var directionsservice = new google.maps.directionsservice();         var map;      function initialize(data) {           directionsdisplay = new google.maps.directionsrenderer();           var chicago = new google.maps.latlng(41.850033, -87.6500523);           var mapoptions = {             zoom:7,             center: chicago           };           map = new google.maps.map(document.getelementbyid('map-canvas'), mapoptions);           directionsdisplay.setmap(map);          }          function calcroute() {           var start = "chicago, il";           var end = "st louis, mo";           var request = {               origin:start,               destination:end,               travelmode: google.maps.travelmode.driving           };           directionsservice.route(request, function(response, status) {             if (status == google.maps.directionsstatus.ok) {               directionsdisplay.setdirections(response);             }           });         }   <div style="height: 25rem; width: 40rem;" id="map-canvas"></div>

what missing in code display default markers , route line?

thanks lot

you must call calcroute() somewhere after initialization.. can @ end of initialization(); example:

    <!doctype html> <html> <head>     <meta name="viewport" content="initial-scale=1.0, user-scalable=no">     <meta charset="utf-8">     <title>directions service</title>     <style>         html, body, #map-canvas {             height: 100%;             margin: 0px;             padding: 0px         }          #panel {             position: absolute;             top: 5px;             left: 50%;             margin-left: -180px;             z-index: 5;             background-color: #fff;             padding: 5px;             border: 1px solid #999;         }     </style>     <script src="https://maps.googleapis.com/maps/api/js?v=3.exp&signed_in=true"></script>     <script>         var directionsdisplay;         var directionsservice = new google.maps.directionsservice();         var map;          function initialize() {             directionsdisplay = new google.maps.directionsrenderer();             var chicago = new google.maps.latlng(41.850033, -87.6500523);             var mapoptions = {                 zoom: 7,                 center: chicago             };             map = new google.maps.map(document.getelementbyid('map-canvas'), mapoptions);             directionsdisplay.setmap(map);             calcroute();         }          function calcroute() {             var start = "chicago, il";             var end = "st louis, mo";             var request = {                 origin:start,                 destination:end,                 travelmode: google.maps.travelmode.driving             };             directionsservice.route(request, function(response, status) {                 if (status == google.maps.directionsstatus.ok) {                     directionsdisplay.setdirections(response);                 }             });         }           google.maps.event.adddomlistener(window, 'load', initialize);      </script> </head> <body> <div id="map-canvas"></div> </body> </html>

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