| 1 | <!DOCTYPE html>
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| 2 | <html lang="en">
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| 3 |
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| 4 | <head>
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| 5 | <meta charset="UTF-8">
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| 6 | <meta name="viewport" content="width=device-width, initial-scale=1.0">
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| 7 | <meta http-equiv="X-UA-Compatible" content="ie=edge">
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| 8 | <meta name="geometry" content="diagram">
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| 9 | <link rel="stylesheet" href="./assets/common.css">
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| 10 | <title>DataSet State</title>
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| 11 | </head>
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| 12 |
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| 13 | <body>
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| 14 | <div id="canvas1"></div>
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| 15 | <div id="canvas2"></div>
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| 16 | <script src="./assets/jquery-3.2.1.min.js"></script>
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| 17 | <script src="./assets/data-set.min.js"></script>
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| 18 | <script src="./assets/g2.min.js"></script>
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| 19 | <script src="../build/g2-brush.js"></script>
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| 20 | <script>
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| 21 | $.getJSON('./data/sp500.json', function(data) {
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| 22 | const ds = new DataSet({
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| 23 | state: {
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| 24 | dates: null
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| 25 | }
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| 26 | });
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| 27 | const totalDv = ds.createView().source(data);
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| 28 | const dv = ds.createView();
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| 29 | dv.source(data)
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| 30 | .transform({
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| 31 | type: 'filter',
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| 32 | callback: obj => {
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| 33 | if (ds.state.dates) {
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| 34 | return ds.state.dates.indexOf(obj.date) > -1;
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| 35 | }
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| 36 | return obj;
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| 37 | }
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| 38 | });
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| 39 | const chart1 = new G2.Chart({
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| 40 | container: 'canvas1',
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| 41 | forceFit: true,
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| 42 | height: window.innerHeight * (4 / 5),
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| 43 | animate: false,
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| 44 | padding: [ 50, 40, 50, 80 ]
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| 45 | });
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| 46 | chart1.source(dv, {
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| 47 | date: {
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| 48 | tickCount: 10,
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| 49 | type: 'time',
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| 50 | mask: 'MMM D YYYY'
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| 51 | },
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| 52 | price: {
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| 53 | min: totalDv.min('price'),
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| 54 | max: totalDv.max('price')
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| 55 | }
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| 56 | });
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| 57 | chart1.area()
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| 58 | .position('date*price')
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| 59 | .shape('smooth')
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| 60 | .opacity(0.85);
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| 61 | chart1.render();
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| 62 |
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| 63 |
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| 64 | const chart2 = new G2.Chart({
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| 65 | container: 'canvas2',
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| 66 | forceFit: true,
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| 67 | height: window.innerHeight * (1.5 / 5),
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| 68 | padding: [ 5, 40, 60, 80 ]
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| 69 | });
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| 70 | chart2.source(data, {
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| 71 | date: {
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| 72 | tickCount: 10,
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| 73 | type: 'time',
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| 74 | mask: 'YYYY'
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| 75 | }
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| 76 | });
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| 77 | chart2.tooltip(false);
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| 78 | chart2.axis('price', false);
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| 79 | chart2.area()
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| 80 | .position('date*price')
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| 81 | .active(false)
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| 82 | .shape('smooth')
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| 83 | .opacity(0.85);
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| 84 | chart2.render();
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| 85 |
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| 86 | new Brush({
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| 87 | canvas: chart2.get('canvas'),
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| 88 | chart: chart2,
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| 89 | type: 'X',
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| 90 | dragable: true,
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| 91 | onBrushmove(ev) {
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| 92 | const { date } = ev;
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| 93 | ds.setState('dates', date);
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| 94 | },
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| 95 | onDragmove(ev) {
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| 96 | const { date } = ev;
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| 97 | ds.setState('dates', date);
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| 98 | }
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| 99 | });
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| 100 | });
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| 101 | </script>
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| 102 | </body>
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| 103 |
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| 104 | </html>
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| 105 |
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