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demo2.html
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<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<title>leaflet地图操作（缩放、平移、定位/书签、动画）</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 class="dropdown">
<a href="JavaScript:void(0)" class="dropdown-toggle" data-toggle="dropdown"
>地图缩放
<b class="caret"></b>
</a>
<span class="dropdown-arrow"></span>
<ul class="dropdown-menu">
<li>
<a href="JavaScript:void(0)" onclick="setZoom()">setZoom() 改变到图层10</a>
</li>
<li>
<a href="JavaScript:void(0)" onclick="setZoomIn()">zoomIn() 图层往里进一个图层</a>
</li>
<li>
<a href="JavaScript:void(0)" onclick="setZoomOut()">zoomOut() 图层往里出一个图层</a>
</li>
</ul>
</li>
<li class="dropdown">
<a href="JavaScript:void(0)" class="dropdown-toggle" data-toggle="dropdown"
>地图定位
<b class="caret"></b>
</a>
<span class="dropdown-arrow"></span>
<ul class="dropdown-menu">
<li>
<a href="JavaScript:void(0)" onclick="panTo()">panTo() 地图平移到点</a>
</li>
<li>
<a href="JavaScript:void(0)" onclick="flyTo()">flyTo() 地图飞到点</a>
</li>
<li>
<a href="JavaScript:void(0)" onclick="fitBounds()">fitBounds() 平移到一个区域</a>
<a href="JavaScript:void(0)" onclick="flyToBounds()">flyToBounds() 飞到一个区域</a>
</li>
</ul>
</li>
</ul>
</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="./js/urlTemplate.js"></script>
<script>
const map = L.map('mapDiv', {
crs: L.CRS.EPSG3857,
zoomControl: true,
minZoom: 1,
attributionControl: true,
zoomAnimation: true, //缩放是否带动画
}).setView([36.52, 120.31], 8);
let Baselayer = L.tileLayer(urlTemplate.mapbox_url, {
maxZoom: 18,
id: 'mapbox.light',
attribution:
'[email protected] © <a href="https://github.com/liuvigongzuoshi/leaflet-demo">leaflet-demo</a>',
}).addTo(map);
// 做一个maker表示定位在这里并可以拖动
L.marker([36.52, 120.31], { draggable: true }).addTo(map);
L.marker([37.91082, 128.73583], { draggable: true }).addTo(map);
const setZoom = () => {
map.setZoom(10, {
// animate: false
}); //设置地图缩放到
};
const setZoomIn = () => {
map.zoomIn(); //图层往里进一个图层，放大
};
const setZoomOut = () => {
map.zoomOut(); //图层往里出一个图层，缩小
};
const panTo = () => {
map.panTo([37.91082, 128.73583], {
animate: true,
}); //地图平移，默认就是true，将地图平移到给定的中心。如果新的中心点在屏幕内与现有的中心点不同则产生平移动作。
};
const flyTo = () => {
map.flyTo([36.52, 120.31]); // 点到点的抛物线动画，平移加缩放动画
};
const fitBounds = () => {
console.log(polygon.getBounds());
map.fitBounds(polygon.getBounds()); //getBounds（获取边界）：返回地图视图的经纬度边界。
//平移到一个区域上面，自动判断区域块的大小，合适缩放图层
};
const flyToBounds = () => {
map.flyToBounds(polygon.getBounds()); //getBounds（获取边界）：返回地图视图的经纬度边界。
//飞到这个多变形区域上面，自动判断区域块的大小，合适缩放图层，将地图视图尽可能大地设定在给定的地理边界内。
};
// 绑定一个监听事件
map.on('zoomend', function (e) {
console.log(e.target._zoom);
});
let polygon = L.polygon(
[
[37, -109.05],
[41, -109.03],
[41, -102.05],
[37, -102.04],
],
[40.774, -74.125],
{
color: 'green',
fillColor: '#f03',
fillOpacity: 0.5,
}
).addTo(map); //地图上绘制一个多边形
</script>
</html>