$(function() {
var markerPath = {
"Original Signal": "M 0 8 C 2 4 7 4 9.5 8 C 11 12 16 12 18 8 L 18 10 C 16 14 11 14 8.5 10 C 7 6 2 6 0 10 Z",
"Noisy Signal": "M 18 8 L 12 12 L 7 3 L 0 7.4 L 0 10 L 6 6 L 11 15 L 18 10.6 Z"
};
$("#chart").dxChart({
dataSource: dataSource,
title: "Noisy and Original Signals",
commonSeriesSettings: {
argumentField: "argument",
point: {
visible: false
}
},
series: [{
valueField: "originalValue",
name: "Original Signal"
}, {
valueField: "value",
name: "Noisy Signal"
}],
legend: {
verticalAlignment: "bottom",
horizontalAlignment: "center",
markerTemplate: function(item, group) {
var marker = document.createElementNS("http://www.w3.org/2000/svg", "path");
var background = document.createElementNS("http://www.w3.org/2000/svg", "rect");
var color = item.series.isVisible() ? item.marker.fill : "#888";
background.setAttribute("fill", color);
background.setAttribute("opacity", 0.3);
background.setAttribute("width", 18);
background.setAttribute("height", 18);
background.setAttribute("x", 0);
background.setAttribute("y", 0);
marker.setAttribute("fill", color);
marker.setAttribute("d", markerPath[item.series.name]);
group.appendChild(marker);
group.appendChild(background)
}
},
onLegendClick(e) {
e.target.isVisible() ? e.target.hide() : e.target.show();
}
});
});
<!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>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.6/css/dx.light.css" />
<script src="https://cdn3.devexpress.com/jslib/20.2.6/js/dx.all.js"></script>
<script src="data.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"></div>
</div>
</body>
</html>
#chart {
height: 440px;
}
function generateData(start, end, step) {
var data = [];
for (var i = start; i < end; i += step) {
var originalValue = Math.sin(i) / i;
data.push({ value: originalValue + ((0.5 - Math.random()) / 10), originalValue: originalValue, argument: i });
}
return data;
}
var dataSource = generateData(2.5, 12, 0.1);