この回答のコードを使用して、Google マップのトグル凡例を作成しています。凡例の各アイテムに独自のアイコンを付けたい。レイヤー名と kml URL とともにアイコンの URL を定義しました。
これを関数コードに挿入しました:
<img src='dummy.png' id='icons'>
次のメソッドを追加しました。
document.getElementById("icons").src = kml[prop].icon
最初のアイコンしか表示されず、間違ったアイコンであるため、機能していないようです。
どこが間違っていますか?完全なコードは次のとおりです。
<html>
<head>
<script type="text/javascript" src="http://maps.googleapis.com/maps/api/js?sensor=false"></script>
<style type="text/css">
html { height: 100% }
body { height: 100%; margin: 0; padding: 0 }
#map_canvas { height: 100% }
ul
{
list-style: none;
margin: 0;
padding: 0;
}
</style>
<script type="text/javascript">
var map;
// lets define some vars to make things easier later
var kml = {
a: {
name: "MPLS/STPL",
url: "https://maps.google.com/maps/ms?authuser=0&vps=5&ie=UTF8&msa=0&output=kml&msid=212971981154994583939.0004b06640255267e038c",
icon: "http://img89.imageshack.us/img89/4149/blueiconvib.png"
},
b: {
name: "Bicycling Tour Routes",
url: "https://maps.google.com/maps/ms?authuser=0&vps=4&ie=UTF8&msa=0&output=kml&msid=212971981154994583939.0004902a1824bbc8c0fe9",
icon: "http://img201.imageshack.us/img201/6075/greenicon.png"
}
// keep adding more if ye like
};
// initialize our goo
function initializeMap() {
var options = {
center: new google.maps.LatLng(44.9812, -93.2687),
zoom: 13,
mapTypeId: google.maps.MapTypeId.ROADMAP
}
map = new google.maps.Map(document.getElementById("map_canvas"), options);
createTogglers();
};
google.maps.event.addDomListener(window, 'load', initializeMap);
// the important function... kml[id].xxxxx refers back to the top
function toggleKML(checked, id) {
if (checked) {
var layer = new google.maps.KmlLayer(kml[id].url, {
preserveViewport: true,
suppressInfoWindows: true
});
// store kml as obj
kml[id].obj = layer;
kml[id].obj.setMap(map);
}
else {
kml[id].obj.setMap(null);
delete kml[id].obj;
}
};
// create the controls dynamically because it's easier, really
function createTogglers() {
var html = "<form><ul>";
for (var prop in kml) {
html += "<li id=\"selector-" + prop + "\"><img src='dummy.png' id='icons'><input type='checkbox' id='" + prop + "'" +
" onclick='highlight(this,\"selector-" + prop + "\"); toggleKML(this.checked, this.id)' \/>" +
kml[prop].name + "<\/li>";
}
html += "<li class='control'><a href='#' onclick='removeAll();return false;'>" +
"Remove all layers<\/a><\/li>" +
"<\/ul><\/form>";
document.getElementById("toggle_box").innerHTML = html;
document.getElementById("icons").src = kml[prop].icon
};
// easy way to remove all objects
function removeAll() {
for (var prop in kml) {
if (kml[prop].obj) {
kml[prop].obj.setMap(null);
delete kml[prop].obj;
}
}
};
// Append Class on Select
function highlight(box, listitem) {
var selected = 'selected';
var normal = 'normal';
document.getElementById(listitem).className = (box.checked ? selected: normal);
};
function startup() {
// for example, this toggles kml b on load and updates the menu selector
var checkit = document.getElementById('b');
checkit.checked = true;
toggleKML(checkit, 'b');
highlight(checkit, 'selector1');
}
</script>
<style type="text/css">
.selected { font-weight: bold; }
</style>
</head>
<body onload="startup()">
<div id="map_canvas" style="width: 100%; height: 600px;"></div>
<div id="toggle_box" style="position: absolute; top: 100px; right: 20px; padding: 10px; background: #fff; z-index: 5; "></div>
</body>
</html>