mapv
Version:
a library of geography visualization
88 lines (79 loc) • 2.56 kB
HTML
<html>
<head>
<title>ol example</title>
<meta charset="utf-8"/>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/openlayers/dist/ol.css">
<style>
html, body, #map {
height: 100%;
padding: 0;
margin: 0;
}
</style>
</head>
<body>
<div id="map"></div>
<script src="https://cdn.jsdelivr.net/npm/openlayers/dist/ol.js"></script>
<script src="../../build/mapv.js"></script>
<script>
var map = new ol.Map({
target: 'map',
layers: [
new ol.layer.Tile({
layerName: 'baseLayer',
preload: 4,
source: new ol.source.OSM({
url: 'http://{a-e}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png'
})
})
],
loadTilesWhileAnimating: true,
pixelRatio: 1,
view: new ol.View({
projection: 'EPSG:4326',
center: [113.53450137499999, 34.44104525],
zoom: 5
})
});
var randomCount = 1000;
var data = [];
var citys = ["北京", "天津", "上海", "重庆", "石家庄", "太原", "呼和浩特", "哈尔滨", "长春", "沈阳", "济南", "南京", "合肥", "杭州", "南昌", "福州", "郑州", "武汉", "长沙", "广州", "南宁", "西安", "银川", "兰州", "西宁", "乌鲁木齐", "成都", "贵阳", "昆明", "拉萨", "海口"];
// 构造数据
while (randomCount--) {
var cityCenter1 = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
var cityCenter2 = mapv.utilCityCenter.getCenterByCityName(citys[parseInt(Math.random() * citys.length)]);
data.push({
geometry: {
type: 'LineString',
coordinates: [[cityCenter1.lng - 1 + Math.random() * 1, cityCenter1.lat - 1 + Math.random() * 1], [cityCenter2.lng - 1 + Math.random() * 1, cityCenter2.lat - 1 + Math.random() * 1]]
},
count: 30 * Math.random()
});
}
var dataSet = new mapv.DataSet(data);
var options = {
strokeStyle: 'rgba(255, 250, 50, 0.3)',
shadowColor: 'rgba(255, 250, 50, 1)',
shadowBlur: 20,
lineWidth: 0.7,
draw: 'simple',
projection: 'EPSG:4326',
methods: {
click: function (event) {
console.log(event)
},
mousemove: function (event) {
if (event) {
mapvLayer.setDefaultCursor('pointer', event)
} else {
mapvLayer.setDefaultCursor('default', event)
}
}
}
}
var mapvLayer = new mapv.OpenlayersLayer(map, dataSet, options);
</script>
</body>
</html>