mapv
Version:
a library of geography visualization
127 lines (106 loc) • 3.93 kB
HTML
<html>
<head>
<meta charset="UTF-8">
<title>maptalks demo</title>
<link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/maptalks/dist/maptalks.css" />
<script src="https://cdn.jsdelivr.net/npm/maptalks/dist/maptalks.js"></script>
<style type="text/css">
html, body {
width: 100%;
height: 100%;
margin: 0;
padding: 0;
overflow: hidden;
}
#map {
width: 100%;
height: 100%;
}
</style>
</head>
<body>
<div id="map"></div>
<canvas id="canvas"></canvas>
<script type="text/javascript" src="http://apps.bdimg.com/libs/jquery/2.1.1/jquery.min.js"></script>
<script type="text/javascript" src="../../build/mapv.js"></script>
<script type="text/javascript">
var map = new maptalks.Map('map', {
center: [116.41348403785,39.910843952376],
zoom: 12,
attribution: {
content: '© Google Maps'
},
baseLayer: new maptalks.TileLayer('base', {
'urlTemplate': 'http://{s}.basemaps.cartocdn.com/dark_all/{z}/{x}/{y}.png',
'subdomains': ['a', 'b', 'c', 'd', 'e']
})
});
$.get('../data/od-xierqi.txt', function (rs) {
var data = [];
var timeData = [];
rs = rs.split("\n");
console.log(rs.length);
var maxLength = 0;
for (var i = 0; i < rs.length; i++) {
var item = rs[i].split(',');
var coordinates = [];
if (item.length > maxLength) {
maxLength = item.length;
}
for (j = 0; j < item.length; j += 2) {
// var coord = trans.untransform(new maptalks.Point(Number(item[j]), Number(item[j + 1])),1);
//coordinates.push([coord.x,coord.y]);
var x = Number(item[j]) / 20037508.34 * 180;
var y = Number(item[j + 1]) / 20037508.34 * 180;
y = 180 / Math.PI * (2 * Math.atan(Math.exp(y * Math.PI / 180)) - Math.PI / 2);
if (x == 0 || y == NaN) {
continue;
}
coordinates.push([x, y]);
timeData.push({
geometry: {
type: 'Point',
coordinates: [x,y]
},
count: 1,
time: j
});
}
data.push({
geometry: {
type: 'LineString',
coordinates: coordinates
}
});
}
var dataSet = new mapv.DataSet(data);
var options = {
strokeStyle: 'rgba(53,57,255,0.5)',
// globalCompositeOperation: 'lighter',
shadowColor: 'rgba(53,57,255,0.2)',
shadowBlur: 3,
lineWidth: 3.0,
draw: 'simple'
}
var mapvLayer = new mapv.MaptalksLayer('mapv1', dataSet, options).addTo(map);
var dataSet = new mapv.DataSet(timeData);
var options = {
fillStyle: 'rgba(255, 250, 250, 0.2)',
globalCompositeOperation: "lighter",
size: 1.5,
animation: {
stepsRange: {
start: 0,
end: 100
},
trails: 3,
duration: 5,
},
draw: 'simple'
}
var mapvLayer = new mapv.MaptalksLayer('mapv', dataSet, options).addTo(map);
});
</script>
</body>
</html>