<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml"
xmlns:v="urn:schemas-microsoft-com:vml">
<head>
<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
<title>Google 地图 JavaScript API 示例: 定制控件</title>
<script src="http://ditu.google.com/maps?file=api&v=2&key=ABQIAAAAzr2EBOXUKnm_jVnk0OJI7xSosDVG8KKPE1-m51RBrvYughuyMxQ-i1QfUnH94QxWIa6N4U6MouMmBA&hl=zh-CN"
type="text/javascript"></script>
<script type="text/javascript">
// TextualZoomControl 是一种 GControl 控件,可以显示文本"放大"和"缩小"按钮。
// (取代Google 地图上对应的图标按钮)
function TextualZoomControl() {
}
TextualZoomControl.prototype = new GControl();
// 为每个按钮创建一个 DIV,并将其放在容器 DIV 中,
// 然后返回容器 DIV 作为我们的控件元素。将该控件添加到
// 地图容器中,并将其返回,以便地图类能正确地放置它。
TextualZoomControl.prototype.initialize = function(map) {
var container = document.createElement("div");
var zoomInDiv = document.createElement("div");
this.setButtonStyle_(zoomInDiv);
container.appendChild(zoomInDiv);
zoomInDiv.appendChild(document.createTextNode("放大"));
GEvent.addDomListener(zoomInDiv, "click", function() {
map.zoomIn();
});
var zoomOutDiv = document.createElement("div");
this.setButtonStyle_(zoomOutDiv);
container.appendChild(zoomOutDiv);
zoomOutDiv.appendChild(document.createTextNode("缩小"));
GEvent.addDomListener(zoomOutDiv, "click", function() {
map.zoomOut();
});
map.getContainer().appendChild(container);
return container;
}
// 默认情况下,该控件将在地图的左上角显示,边距为 7 像素。
TextualZoomControl.prototype.getDefaultPosition = function() {
return new GControlPosition(G_ANCHOR_TOP_LEFT, new GSize(7, 7));
}
// 设置给定按钮元素的正确 CSS。
TextualZoomControl.prototype.setButtonStyle_ = function(button) {
button.style.textDecoration = "underline";
button.style.color = "#0000cc";
button.style.backgroundColor = "white";
button.style.font = "small Arial";
button.style.border = "1px solid black";
button.style.padding = "2px";
button.style.marginBottom = "3px";
button.style.textAlign = "center";
button.style.width = "6em";
button.style.cursor = "pointer";
}
function initialize() {
if (GBrowserIsCompatible()) {
var map = new GMap2(document.getElementById("map_canvas"));
map.setCenter(new GLatLng(39.917,116.397), 14);
map.addControl(new TextualZoomControl());
}
}
</script>
</head>
<body onload="initialize()" onunload="GUnload()">
<div id="map_canvas" style="width: 500px; height: 300px"></div>
</body>
</html>
google Map A自定义控件
最新推荐文章于 2025-08-11 22:10:22 发布