ich bin neu bei Google Maps API und habe das Geocoding-Beispiel unter folgender Adresse gemacht:
https://developers.google.com/maps/documentation/javascript/examples/geocoding-simple
Ich möchte in der Lage sein, eine Zeichenfolge in meinem Code zu geokodieren und eine Markierung an der Position zu platzieren, anstatt einen Benutzer nach einer Position zu suchen. Mein Code lautet bisher:
<!DOCTYPE html>
<html>
<head>
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta charset="utf-8">
<title>Geocoding service</title>
<style>
html, body, #map-canvas
{
height: 100%;
margin: 0px;
padding: 0px
}
</style>
<script src="https://maps.googleapis.com/maps/api/js?v=3.exp&sensor=false"></script>
<script>
//global variables
var geocoder;
var map;
var Ireland = "Dublin";
function initialize()
{
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(53.3496, -6.3263);
var mapOptions =
{
zoom: 8,
center: latlng
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
codeAddress();//call the function
}
function codeAddress()
{
var address = document.getElementById("Ireland").value;
geocoder.geocode( {"Ireland":address}, function(results, status)
{
if (status == google.maps.GeocoderStatus.OK)
{
map.setCenter(results[0].geometry.location);//center the map over the result
//place a marker at the 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);
}
});
}
google.maps.event.addDomListener(window, 'load', initialize);
</script>
</head>
<body>
<div id="map-canvas"></div>
</body>
</html>
Es ist wahrscheinlich etwas einfaches, aber wie gesagt, ich bin neu in Google Maps und HTML und würde mich über jede Hilfe freuen, also bitte nicht abstimmen. Danke
Dadurch wird die codeAddress-Funktion so geändert, dass ein Argument angenommen und dieses Argument geokodiert wird. Wenn Sie die Irland-Variable als Argument übergeben, wird "Dublin" geocodiert.
var Ireland = "Dublin";
function initialize()
{
geocoder = new google.maps.Geocoder();
var latlng = new google.maps.LatLng(53.3496, -6.3263);
var mapOptions =
{
zoom: 8,
center: latlng
}
map = new google.maps.Map(document.getElementById('map-canvas'), mapOptions);
codeAddress(Ireland);//call the function
}
function codeAddress(address)
{
geocoder.geocode( {address:address}, function(results, status)
{
if (status == google.maps.GeocoderStatus.OK)
{
map.setCenter(results[0].geometry.location);//center the map over the result
//place a marker at the 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);
}
});
}
Versuchen Sie es einfach damit.
<!doctype html>
<html lang="en">
<head>
<meta charset="utf-8">
<title>Google Map Address</title>
<script src="http://code.jquery.com/jquery-latest.min.js" type="text/javascript"></script>
<script type="text/javascript" src="http://maps.google.com/maps/api/js?sensor=false"></script>
<script type="text/javascript">
var geocoder = new google.maps.Geocoder();
var address = "Dublin";
geocoder.geocode( { 'address': address}, function(results, status) {
if (status == google.maps.GeocoderStatus.OK) {
var latitude = results[0].geometry.location.lat();
var longitude = results[0].geometry.location.lng();
initialize(latitude,longitude);
}
});
function initialize(latitude,longitude) {
var latlng = new google.maps.LatLng(latitude,longitude);
var myOptions = {
zoom: 14,
center: latlng,
mapTypeId: google.maps.MapTypeId.ROADMAP,
mapTypeControl: false
};
var map = new google.maps.Map(document.getElementById("map_canvas"),myOptions);
var marker = new google.maps.Marker({
position: latlng,
map: map,
title:"location : Dublin"
});
}
</script>
</head>
<body>
<h2>Google Map Address</h2>
<div id="map_canvas" style="width:710px; height:300px"></div>
</body>
</html>