100 lines
3.3 KiB
HTML
100 lines
3.3 KiB
HTML
<!DOCTYPE html>
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<html>
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<head>
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<title>Histogram widget | CARTO</title>
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<meta name="viewport" content="initial-scale=1.0">
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<meta charset="utf-8">
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<link href="https://fonts.googleapis.com/css?family=Montserrat:400,600,700|Open+Sans:300,400,600" rel="stylesheet">
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<!-- Include CARTO.js -->
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<script src="../../../dist/public/carto.js"></script>
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<link href="../style.css" rel="stylesheet">
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</head>
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<body class="bg-gray">
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<div class="dataview">
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<ul>
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<li>
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<h2 class="h2">Column</h2>
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<input id="column" type="text" value="price" class="input_text open-sans"></input>
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</li>
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<li>
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<h2 class="h2">Bins</h2>
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<input id="bins" type="number" value="5" class="input_text open-sans"></input>
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</li>
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<li>
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<h2 class="h2">Start</h2>
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<input id="start" type="number" class="input_text open-sans"></input>
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</li>
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<li>
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<h2 class="h2">End</h2>
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<input id="end" type="number" class="input_text open-sans"></input>
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</li>
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</ul>
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<button onclick="applyDataviewChanges()" class="button open-sans">Apply</button>
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<pre class="code" id="data"></pre>
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</div>
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<aside class="toolbox">
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<div class="box">
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<header>
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<h1>Histogram widget</h1>
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<button class="github-logo js-source-link"></button>
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</header>
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<section>
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<p class="description open-sans">Create a widget with the histogram dataview.</p>
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<div class="separator"></div>
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<section class="usage">
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<header>USAGE</header>
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<p class="open-sans">Change column or bins on the form.</p>
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<p class="open-sans">Start and end values must be used together.</p>
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<p class="open-sans">Example columns: price, minimum_nights, availability_365.</p>
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</section>
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<div id="controls">
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<div id="info"></div>
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</div>
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</section>
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<footer class="js-footer"></footer>
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</div>
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</aside>
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<script>
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const client = new carto.Client({
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apiKey: 'default_public',
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username: 'cartojs-test'
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});
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const source = new carto.source.SQL('SELECT * FROM airbnb_listings WHERE price < 150');
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const histogramDataview = new carto.dataview.Histogram(source, 'price', {
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bins: 5
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});
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histogramDataview.on('dataChanged', data => {
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document.getElementById('data').innerHTML = JSON.stringify(data, null, 4);
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});
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histogramDataview.on('error', error => {
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alert(error.message);
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});
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client.addDataview(histogramDataview);
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function applyDataviewChanges() {
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const column = document.getElementById('column').value;
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const bins = parseInt(document.getElementById('bins').value);
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const startValue = parseFloat(document.getElementById('start').value);
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const endValue = parseFloat(document.getElementById('end').value);
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const start = Number.isFinite(startValue) ? startValue : null;
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const end = Number.isFinite(endValue) ? endValue : null;
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try {
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histogramDataview.setColumn(column);
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histogramDataview.setStartEnd(start, end);
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histogramDataview.setBins(bins);
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} catch(error) {
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alert(error.message);
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}
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}
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</script>
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</body>
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</html>
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