hotime/example/tpt/file/2022/03/20/f8f6a9aa9d7e260d1667ba4f453bd6ae.txt

75 lines
2.7 KiB
Plaintext
Raw Normal View History

2022-03-26 08:53:40 +00:00
<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<title>地面图片叠加层</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<style>
body,
html,
#container {
overflow: hidden;
width: 100%;
height: 100%;
margin: 0;
font-family: "微软雅黑";
}
</style>
<script src="//api.map.baidu.com/api?type=webgl&v=1.0&ak=您的密钥"></script>
</head>
<body>
<div id="container"></div>
</body>
</html>
<script>
var map = new BMapGL.Map('container');
map.centerAndZoom(new BMapGL.Point(117.200, 36.2437), 18);
map.enableScrollWheelZoom(true);
map.setTilt(45);
map.setDisplayOptions({
poiText: false, // 隐藏poi标注
poiIcon: false, // 隐藏poi图标
building: false // 隐藏楼块
});
map.clearOverlays();//清除地图覆盖物
//思路:利用行政区划点的集合与外围自定义东南西北形成一个环形遮罩层
//1.获取选中行政区划边框点的集合rs.boundaries[0]
var strs = new Array();
var ENWS = "";
for (var i=0;i<strs.length;i++) {
ENWS += strs[i] + ";"
}
//2.自定义外围边框点的集合
var E_JW = "170.672126, 39.623555;"; //东
var EN_JW = "170.672126, 81.291804;"; //东北角
var N_JW = "105.913641, 81.291804;"; //北
var NW_JW = "-169.604276, 81.291804;"; //西北角
var W_JW = "-169.604276, 38.244136;"; //西
var WS_JW = "-169.604276, -68.045308;"; //西南角
var S_JW = "114.15563, -68.045308;"; //南
var SE_JW = "170.672126, -68.045308 ;"; //东南角
//3.添加环形遮罩层
var ply1 = new BMapGL.Polygon(ENWS + E_JW + SE_JW + S_JW + WS_JW + W_JW + NW_JW + N_JW + EN_JW + E_JW, {strokeColor:"#000",strokeOpacity:0.1,fillColor:"#000",fillOpacity:"0.9"}); //建立多边形覆盖物
map.addOverlay(ply1);//遮罩物是半透明的,如果需要纯色可以多添加几层
map.addOverlay(ply1);//遮罩物是半透
map.addOverlay(ply1);//遮罩物是半透
var pStart = new BMapGL.Point(117.19635, 36.24093);
var pEnd = new BMapGL.Point(117.20350, 36.24764);
var bounds = new BMapGL.Bounds(new BMapGL.Point(pStart.lng, pEnd.lat), new BMapGL.Point(pEnd.lng, pStart.lat));
var imgOverlay = new BMapGL.GroundOverlay(bounds, {
type: 'image',
url: '/jsdemo/img/shouhuimap.png',
opacity: 1
});
map.addOverlay(imgOverlay);
</script>