104 lines
3.4 KiB
HTML
104 lines
3.4 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Time Slider | CartoDB.js</title>
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<meta name="viewport" content="initial-scale=1.0, user-scalable=no" />
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<meta http-equiv="content-type" content="text/html; charset=UTF-8"/>
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<link rel="shortcut icon" href="http://cartodb.com/assets/favicon.ico" />
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<style>
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html, body, #map {
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height: 100%;
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padding: 0;
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margin: 0;
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}
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#slider {
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position: absolute;
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bottom: 40px;
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right: 40px;
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left:40px;
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}
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#legend {
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font-family: serif;
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font-size: 27px;
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position: absolute;
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bottom: 80px;
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left: 40px;
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}
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</style>
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<link rel="stylesheet" href="https://libs.cartocdn.com/cartodb.js/v3/3.15/themes/css/cartodb.css" />
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<link rel="stylesheet" href="https://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
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</head>
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<body>
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<div id="map"></div>
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<div id="slider"></div>
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<div id="legend"></div>
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<!-- include cartodb.js library -->
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<script src="https://libs.cartocdn.com/cartodb.js/v3/3.15/cartodb.js"></script>
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<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.min.js"></script>
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<script>
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function changeLegend(start, end) {
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$('#legend').html("US post offices built " + new Date(start).getFullYear() + " - " + new Date(end).getFullYear())
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}
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function addTimeSlider(sublayer) {
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var sql = cartodb.SQL({ user: 'documentation' })
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// fetch time range
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sql.execute('select max(built), min(built) from us_po_offices', function(data) {
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var range = data.rows[0];
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var max = new Date(range.max).getTime()
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var min = new Date(range.min).getTime()
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// update slider with range
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$("#slider").slider({
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range: true,
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min: min,
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max: max,
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values: [ min , (min + max)/2 ],
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slide: function(event, ui) {
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// give feedback to the user on slide change
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changeLegend(ui.values[0], ui.values[1]);
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},
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stop: function( event, ui ) {
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// when user selects the dates, update the layer with the range
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var start = new Date(ui.values[0]).toISOString()
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var end = new Date(ui.values[1]).toISOString();
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// build sql
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sublayer.setSQL("select * from us_po_offices where built >= '" + start + "' and built <= '" + end + "'");
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}
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});
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changeLegend(min, (min + max)/ 2);
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});
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}
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function main() {
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var map = new L.Map('map', {
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zoomControl: false,
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center: [36.66841891894786, -96.96533203125],
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zoom: 5
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});
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L.tileLayer('http://{s}.api.cartocdn.com/base-light/{z}/{x}/{y}.png', {
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attribution: 'CartoDB · OSM data'
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}).addTo(map);
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cartodb.createLayer(map, 'http://documentation.cartodb.com/api/v2/viz/d1e06c70-5dce-11e3-bda9-0e6bd0b8aae4/viz.json', { legends: false })
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.addTo(map)
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.on('done', function(layer) {
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// add time slider on change
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addTimeSlider(layer.getSubLayer(0));
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}).on('error', function() {
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cartodb.log.log("some error occurred");
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});
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}
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// you could use $(window).load(main);
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window.onload = main;
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</script>
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</body>
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</html>
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