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example file for vector field

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Stuart Lynn 2015-09-09 14:46:12 -04:00
parent 70c34d2d30
commit 1b93a6c67e
1 changed files with 81 additions and 0 deletions
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examples/vector_test.html Normal file
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<html>
<link rel="stylesheet" href="vendor/leaflet.css" />
<style>
#map, html, body {
width: 100%; height: 100%; padding: 0; margin: 0;
}
#title {
position: absolute;
top: 100px;
left: 50px;
color: white;
font-size: 27px;
font-family: Helvetica, sans-serif;
}
</style>
<body>
<div id="map"></div>
<div id="title">Average temperature collected by Britain's Royal Navy (1913-1925)</div>
<link rel="stylesheet" href="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.css" />
<script src="http://cdn.leafletjs.com/leaflet-0.7.3/leaflet.js"></script>
<script src="../dist/torque.full.uncompressed.js"></script>
<script>
// define the torque layer style using cartocss
// this creates a kind of density map
//color scale from http://colorbrewer2.org/
var CARTOCSS = [
'Map {',
' -torque-frame-count:1;',
' -torque-animation-duration:1;',
' -torque-time-attribute:"date";',
' -torque-aggregation-function:"avg(angle*40)";',
' -torque-resolution:4;',
' -torque-data-aggregation:linear;',
'}',
'#wind {',
' marker-width: 4;',
' marker-fill-opacity: 1.0;',
' marker-stroke: red; ',
' marker-max-mag: 7; ',
' marker-type: vector;',
' marker-mag : 7;',
'}'
]
for(var i=0 ; i < 255; i++){
CARTOCSS.push('#wind[value <= '+(255-i)+'] { marker-angle:'+ (255-i)/40+'; marker-stroke: rgb('+i+','+(255-i)+',255); }')
}
console.log(CARTOCSS)
CARTOCSS = CARTOCSS.join("\n")
var map = new L.Map('map', {
zoomControl: true,
center: [40, 0],
zoom: 3
});
L.tileLayer('http://{s}.api.cartocdn.com/base-dark/{z}/{x}/{y}.png', {
attribution: 'CartoDB'
}).addTo(map);
var torqueLayer = new L.TorqueLayer({
user : 'stuartlynn',
table : 'wind',
cartocss: CARTOCSS
});
torqueLayer.addTo(map);
torqueLayer.play();
</script>
</body>
</html>