window.onload = function () {
const dataSource = [];
const max = 5000;
let i;
for (i = 0; i < max; i += 1) {
dataSource.push({ arg: i, val: i + i * (Math.random() - 0.5) });
}
const model = {};
model.chartOptions = {
dataSource,
argumentAxis: {
valueMarginsEnabled: false,
},
valueAxis: {
label: {
format: {
type: 'fixedPoint',
},
},
},
legend: {
visible: false,
},
series: {
point: {
size: 7,
},
aggregation: {
enabled: true,
},
},
};
model.rangeOptions = {
size: {
height: 120,
},
dataSource,
chart: {
series: {
aggregation: {
enabled: true,
},
},
},
scale: {
minRange: 1,
},
sliderMarker: {
format: {
type: 'decimal',
precision: 0,
},
},
behavior: {
callValueChanged: 'onMoving',
snapToTicks: false,
},
onValueChanged(e) {
const zoomedChart = $('#chart-demo #zoomedChart').dxChart('instance');
zoomedChart.zoomArgument(e.value[0], e.value[1]);
},
};
ko.applyBindings(model, $('#chart-demo')[0]);
};
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>DevExtreme Demo</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0, maximum-scale=1.0" />
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.5.1/jquery.min.js"></script>
<script>window.jQuery || document.write(decodeURIComponent('%3Cscript src="js/jquery.min.js"%3E%3C/script%3E'))</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/knockout/3.4.2/knockout-min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/22.2.3/css/dx.light.css" />
<script src="https://cdn3.devexpress.com/jslib/22.2.3/js/dx.all.js"></script>
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="index.js"></script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="chart-demo">
<div id="zoomedChart" data-bind="dxChart: chartOptions"></div>
<div id="range-selector" data-bind="dxRangeSelector: rangeOptions"></div>
</div>
</div>
</body>
</html>
#chart-demo {
height: 470px;
width: 100%;
}
#zoomedChart {
height: 335px;
margin: 0 0 15px;
}
#chart-demo > div:not(#zoomedChart) {
height: 120px;
}