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私は、ユーザーが郵便番号とその周りに描画される半径を入力できるマップを作成しています。 google.maps.Polylineに問題があります。私が受けていますエラーメッセージは、「コンストラクタのパラメータに無効な値である0google maps V3ポリライン円描画、エラー：コンストラクタパラメータ0の無効な値
<!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 was not successful for the 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 was not successful for the following reason: " + status);
}
});
//Degrees to radians
var d2r = Math.PI/180;
alert("calc d2r " + d2r);
// Radians to degrees
var r2d = 180/Math.PI;
alert("calc r2d " + r2d);
// Earth radius is 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 the points
// Work around 360 points on circle
for (var i=0; i < 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 to 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 the outline of the polyline
strokeOpacity: 1,
// between 0.0 and 1.0
strokeWeight: 5
// The stroke width in pixels
});
Polyline_Path.setMap(map);
//Add points to map
//var sColor="#003F87";
//alert("color");
//var stroke=.5;
//alert("stroke");
//map.addOverlay(new GPolyline(points, sColor, stroke));
//alert("added points to 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>