[英]How to get the latitude and longitude from a Google Map marker in order to update in a form?
[英]How to get latitude longitude value from html form to google map
<head>
<script
src="http://maps.googleapis.com/maps/api/js">
</script>
<script>
function ShowMap(latitude,longitude) {
console.log("This is latitude :" + latitude);
console.log("This is longitude :" + longitude);
var myCenter = new google.maps.LatLng(latitude, longitude);
var marker;
function initialize() {
var mapProp = {
center: myCenter,
zoom: 5,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("googleMap"), mapProp);
var marker = new google.maps.Marker({
position: myCenter,
animation: google.maps.Animation.BOUNCE
});
marker.setMap(map);
}
google.maps.event.addDomListener(window, 'load', initialize);
}
</script>
</head>
我在html 的標題中有相關數據
在html的正文中,我有一個表單
<form>
<input type="number" name="latitude" >
<input type="number" name="longitude" >
<input type="button" onclick="ShowMap(latitude.value,longitude.value)" value="ShowMap"/>
</form>
采用緯度和經度的輸入具有要繪制圖形的輸入,但是,現在我得到函數圖中的值未顯示是不是我做錯了什么
您需要直接調用初始化例程,這是行不通的:
google.maps.event.addDomListener(window, 'load', initialize);
由於窗口load
事件已經觸發。
代碼片段:
function ShowMap(latitude, longitude) { console.log("This is latitude :" + latitude); console.log("This is longitude :" + longitude); var myCenter = new google.maps.LatLng(latitude, longitude); var marker; function initialize() { var mapProp = { center: myCenter, zoom: 5, mapTypeId: google.maps.MapTypeId.ROADMAP }; var map = new google.maps.Map(document.getElementById("googleMap"), mapProp); var marker = new google.maps.Marker({ position: myCenter, animation: google.maps.Animation.BOUNCE, title: myCenter.toUrlValue(6) }); marker.setMap(map); } initialize(); }
html, body, #googleMap { height: 100%; width: 100%; margin: 0px; padding: 0px }
<script src="https://maps.googleapis.com/maps/api/js"></script> <form> <input type="number" name="latitude" value="42" /> <input type="number" name="longitude" value="-72" /> <input type="button" onclick="ShowMap(latitude.value,longitude.value)" value="ShowMap" /> </form> <div id="googleMap"></div>
請試試這個:
function ShowMap(latitude, longitude) {
console.log("This is latitude :" + latitude);
console.log("This is longitude :" + longitude);
var myCenter = new google.maps.LatLng(latitude, longitude);
var marker;
function initialize() {
var mapProp = {
center: myCenter,
zoom: 15,
mapTypeId: google.maps.MapTypeId.ROADMAP
};
var map = new google.maps.Map(document.getElementById("googleMap"), mapProp);
var marker = new google.maps.Marker({
position: myCenter,
animation: google.maps.Animation.BOUNCE
});
marker.setMap(map);
}
initialize();
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