我正在尝试使用 Google Maps JavaScript API 从两个位置绘制测地折线address点。
var polyOptions = {geodesic:true};
var polyline = new GPolyline([
new GLatLng(),
new GLatLng()
], "#f36c25", 5, 0.8, polyOptions
);
map.addOverlay(polyline);
if (GBrowserIsCompatible()) {
map.addOverlay(polyline);
}
有人可以告诉我如何将地址动态地理编码为 GLatLng 坐标吗？读完后我有点困惑谷歌的API文档.
您可能想查看以下示例。首先它尝试进行地理编码address1。如果成功，它会尝试进行地理编码address2。如果两者都成功，它将绘制两个坐标和两个标记之间的测地折线：
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google Maps API Geocoding Demo</title>
<script src="http://maps.google.com/maps/api/js?sensor=false"
type="text/javascript"></script>
</head>
<body>
<div id="map" style="width: 500px; height: 400px;"></div>
<script type="text/javascript">
var address1 = 'London, UK';
var address2 = 'New York, US';
var map = new google.maps.Map(document.getElementById('map'), {
zoom: 2,
center: new google.maps.LatLng(35.00, -25.00),
mapTypeId: google.maps.MapTypeId.ROADMAP
});
var gc = new google.maps.Geocoder();
gc.geocode({'address': address1}, function (res1, status) {
if (status == google.maps.GeocoderStatus.OK) {
gc.geocode({'address': address2}, function (res2, status) {
if (status == google.maps.GeocoderStatus.OK) {
new google.maps.Marker({
position: res1[0].geometry.location,
map: map
});
new google.maps.Marker({
position: res2[0].geometry.location,
map: map
});
new google.maps.Polyline({
path: [
res1[0].geometry.location,
res2[0].geometry.location
],
strokeColor: '#FF0000',
geodesic: true,
map: map
});
}
});
}
});
</script>
</body>
</html>
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