google maps V3 polyline circle drawing, error: invalid value for constructor parameter 0 -


i creating map allows user enter zip code , radius drawn around it. having problem google.maps.polyline. error message receiving "invalid value constructor parameter 0. 

<!doctype html>  <html>  <head>  <meta name="viewport" content="initial-scale=1.0, user-scalable=no" />  <style type="text/css">       html { height: 100% }        body { height: 100%; margin: 0px; padding: 0px }       #map_canvas { height: 100% }  </style>  <script type="text/javascript"      src="http://maps.google.com/maps/api/js?sensor=false">   </script>    </script> <script type= "text/javascript">  var geocoder;    var map;     function initialize() {         geocoder = new google.maps.geocoder();          var latlng = new google.maps.latlng(-34.397, 150.644);         var myoptions = {                zoom: 8,               center: latlng,                maptypeid: google.maps.maptypeid.roadmap             }          map = new google.maps.map(document.getelementbyid("map_canvas"),myoptions);   }     function codeaddress() {         var address = document.getelementbyid("address").value;     geocoder.geocode( { 'address': address}, function(results, status) {                if (status == google.maps.geocoderstatus.ok) {                  map.setcenter(results[0].geometry.location);                 var marker = new google.maps.marker({                       map: map,                          position: results[0].geometry.location             });           }         else {                 alert("geocode not successful following reason: " + status);                }              });            }   function drawcircle() {     var address=document.getelementbyid("address").value;     var radius=document.getelementbyid("radius").value;     var latitude=40;     var longitude=0;     geocoder.geocode( { 'address': address}, function(results, status){     if (status==google.maps.geocoderstatus.ok){     latlng=(results[0].geometry.location);     latitude=latlng.lat();     longitude=latlng.lng();     alert(latitude);     alert(longitude);     alert (radius);     }         else{         alert("geocode not successful following reason: " + status);     }     });      //degrees radians    var d2r = math.pi / 180;   alert("calc d2r " + d2r);  //  radians degrees  var r2d = 180 / math.pi;  alert("calc r2d " + r2d);  // earth radius 3,963 miles  var clat = (radius / 3963) * r2d;  alert("calc clat " + clat);   var clng = clat / math.cos(latitude * d2r);   alert("calc clng " + clng);    //store points in array    var points = [];   alert("declare array ");    // calculate points   // work around 360 points on circle   (var i=0; < 360; i++) {     var theta = math.pi * (i/16);     // calculate next x point     circlex = longitude + (clng * math.cos(theta));                 // calculate next y point     circley = latitude + (clat * math.sin(theta));     // add point array      points.push(new google.maps.point(circlex, circley));    };     alert("completed loop");     var polyline_path = new google.maps.polyline({     path: points,     strokecolor: "#003f87",     // color of outline of polyline     strokeopacity: 1,     // between 0.0 , 1.0     strokeweight: 5     // stroke width in pixels     });     polyline_path.setmap(map);       //add points map     //var scolor="#003f87";     //alert("color");     //var stroke=.5;     //alert("stroke");     //map.addoverlay(new gpolyline(points, scolor, stroke));     //alert("added points map");  }   </script> </head>     <body onload="initialize()">          <div id="map_canvas" style="width:500px; height:460px;         -moz-outline-radius:20px; -moz-box-sizing:padding-box; -moz-outline-style:solid ;-moz-outline-color:#9fb6cd;          -moz-outline-width:10px;"></div>           <div>                  zip code: <input id="address" type="textbox" value="">                 radius:<input id="radius" type="textbox" value="">             <input type="button" value="find" onclick="codeaddress() ">                <input type="button" value="draw radius" onclick= "drawcircle() ">         </div>      </body> </html>

you trying create polyline (as variable polyline_path) using array of point objects path property. however, path property must array of latlng objects.


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