<!DOCTYPE html>
<html lang="zh-CN">
<head>
<meta charset="utf-8">
<title>MapVGL</title>
<meta http-equiv="X-UA-Compatible" content="IE=Edge">
<meta name="viewport" content="initial-scale=1.0, user-scalable=no">
<style>
html,
body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
}
#map_container {
width: 100%;
height: 100%;
margin: 0;
}
</style>
<script src="//api.map.baidu.com/api?v=1.0&type=webgl&ak=1XjLLEhZhQNUzd93EjU5nOGQ"></script>
<script src="//mapv.baidu.com/build/mapv.min.js"></script>
<script src="static/common.js"></script>
<script src="https://code.bdstatic.com/npm/mapvgl@1.0.0-beta.93/dist/mapvgl.min.js"></script>
</head>
<body>
<div id="map_container"></div>
<script>
/* global BMapGL */
/* global mapv */
/* global mapvgl */
/* global initMap */
/* global whiteStyle */
/* global purpleStyle */
var map = initMap({
tilt: 55,
heading: 0,
center: [106.517615,29.551211],
zoom: 13,
style: purpleStyle
});
var view = new mapvgl.View({
// effects: [new mapvgl.BloomEffect({
// blurSize: 3
// })],
map: map
});
fetch('./static/car.csv').then(rs => {
return rs.text();
}).then(csvstr => {
var dataSet = mapv.csv.getDataSet(csvstr);
var data = dataSet.get();
for (var i = 0; i < data.length; i++) {
data[i].properties = {
count: data[i].geometry.coordinates.length
};
}
var layer = new mapvgl.HeatLineLayer({
min: 0,
max: 100,
gradient: { // 对应比例渐变色
0.5: 'rgba(0, 0, 255, 0.4)',
0.7: 'rgba(0, 102, 255, 0.3)',
0.8: 'rgba(102, 255, 255,0.3)',
0.9: 'rgba(204, 255, 255,0.5)'
}
});
view.addLayer(layer);
layer.setData(data);
});
</script>
</body>
</html>
