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demo3.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<title>esri-leaflet底图加载,图层管理（加载、移除、调整顺序）</title>
<meta name="viewport" content="width=device-width, initial-scale=1">
<link rel="stylesheet" type="text/css" media="screen" href="./lib/Flat-UI-master/dist/css/vendor/bootstrap/css/bootstrap.min.css"
/>
<link rel="stylesheet" href="./lib/Flat-UI-master/dist/css/flat-ui.min.css">
<link rel="stylesheet" href="./lib/leaflet/leaflet.css">
</head>
<body>
<nav class="navbar navbar-inverse navbar-embossed" role="navigation" style="margin-bottom: 0; border-radius: 0; z-index:2">
<div class="navbar-header">
<button type="button" class="navbar-toggle" data-toggle="collapse" data-target="#navbar-collapse-01">
<span class="sr-only">Toggle navigation</span>
</button>
<a class="navbar-brand" href="#">Flat UI</a>
</div>
<div class="collapse navbar-collapse" id="navbar-collapse-01">
<ul class="nav navbar-nav navbar-left">
<li>
<a href="#fakelink">Menu Item
<span class="navbar-unread">1</span>
</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">Messages
<b class="caret"></b>
</a>
<span class="dropdown-arrow"></span>
<ul class="dropdown-menu">
<li>
<a href="#">Action</a>
</li>
<li>
<a href="#">Another action</a>
</li>
<li>
<a href="#">Something else here</a>
</li>
<li class="divider"></li>
<li>
<a href="#">Separated link</a>
</li>
</ul>
</li>
<li>
<a href="#fakelink">About Us</a>
</li>
<li class="dropdown">
<a href="#" class="dropdown-toggle" data-toggle="dropdown">地图切换
<b class="caret"></b>
</a>
<ul class="dropdown-menu">
<li>
<a id="mapbox_Image" href='JavaScript:void(0)' onclick='setLayer([urlTemplate.SYS_CQMap_IMG_MAPSERVER_PATH,urlTemplate.SYS_CQMap_IMG_LABEL_MAPSERVER_PATH], 17)'>影像地图加标注</a>
</li>
<li>
<a id="mapbox_Vector" href='JavaScript:void(0)' onclick='setLayer([urlTemplate.SYS_CQMap_VEC_MAPSERVER_PATH], 17)'>矢量地图</a>
</li>
<li>
<a id="mapbox_Vector" href='JavaScript:void(0)' onclick='setLayer([urlTemplate.SYS_CQMap_DEM_MAPSERVER_PATH], 13)'>地貌地图</a>
</li>
</ul>
</li>
</ul>
<form class="navbar-form navbar-right" action="#" role="search">
<div class="form-group">
<div class="input-group">
<input class="form-control" id="navbarInput-01" type="search" placeholder="Search">
<span class="input-group-btn">
<button type="submit" class="btn">
<span class="fui-search"></span>
</button>
</span>
</div>
</div>
</form>
</div>
<!-- /.navbar-collapse -->
</nav>
<div class="container-fluid">
<div class="row">
<div class="col-xs-12" id="mapDiv" style="position: absolute;top: 53px;bottom: 0;z-index:1"></div>
<!-- 地图面板 -->
<!--底部状态栏部分 -->
</div>
</div>
</body>
<script src="./lib/Flat-UI-master/dist/js/vendor/jquery.min.js"></script>
<script src="./lib/Flat-UI-master/dist/js/flat-ui.js"></script>
<script src="./lib/leaflet/leaflet.js"></script>
<script src="./lib/esri-leaflet-v2.1.2/dist/esri-leaflet.js"></script>
<!-- esri-leafleat插件 -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/proj4js/2.4.4/proj4.js"></script>
<script src="./js/urlTemplate.js"></script>
<script>
let oMap = null;
let oLayer = [];
oMap = L.map('mapDiv', {
crs: L.CRS.EPSG4326,
zoomControl: false,
minZoom: 7,
attributionControl: false
}).setView([29.59, 106.59], 12); //定位在重庆
// 切换底图
const setLayer = (layerUrls, maxZoom) => {
for (let i = 0; i < oLayer.length; i++) {
oMap.removeLayer(oLayer[i]) //将图层在地图上移除
}
oLayer = [] //制空数组
layerUrls.map((item) => {
oLayer.push(L.esri.tiledMapLayer({
url: item,
useCors: false, //是否浏览器在跨域的情况下使用GET请求。
maxZoom: maxZoom,
}).addTo(oMap));
})
}
//加载底图
setLayer([urlTemplate.SYS_CQMap_IMG_MAPSERVER_PATH, urlTemplate.SYS_CQMap_IMG_LABEL_MAPSERVER_PATH], 17)
console.log(oLayer)
</script>
</html>