$(function () {
var maxDay = dataSource.reduce(function(prev, current) {
return prev.day >= current.day ? prev : current;
});
var minNight = dataSource.reduce(function(prev, current) {
return prev.night <= current.night ? prev : current;
});
$("#radarChart").dxPolarChart({
dataSource: dataSource,
commonSeriesSettings: {
type: "bar",
opacity: 0.75
},
series: [
{ valueField: "day", name: "Day", color: "#fdff5e" },
{ valueField: "night", name: "Night", color: "#0f3b59" }
],
commonAnnotationSettings: {
type: "text",
opacity: 0.7,
arrowLength: 0
},
annotations: [{
text: "WINTER",
angle: 45,
radius: 180
}, {
text: "SPRING",
angle: 135,
radius: 180
}, {
text: "SUMMER",
angle: 225,
radius: 180
}, {
text: "FALL",
angle: 315,
radius: 180
}, {
argument: maxDay.arg,
series: "Day",
text: "Highest temperature: " + maxDay.day + " °C",
opacity: 1,
offsetX: 105,
paddingTopBottom: 15,
paddingLeftRight: 15
}, {
argument: minNight.arg,
series: "Night",
text: "Lowest temperature: " + minNight.night + " °C",
opacity: 1,
offsetX: 105,
paddingTopBottom: 15,
paddingLeftRight: 15
}],
argumentAxis: {
strips: [{
startValue: "December",
endValue: "February",
color: "#0076d1"
}, {
startValue: "March",
endValue: "May",
color: "#3ca3b0"
}, {
startValue: "June",
endValue: "August",
color: "#3fbc1e"
}, {
startValue: "September",
endValue: "November",
color: "#f0bb00"
}]
},
legend: {
horizontalAlignment: "center",
verticalAlignment: "bottom"
},
title: "Average temperature in London"
});
});
<!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/20.2.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.light.css" />
<script src="https://cdn3.devexpress.com/jslib/20.2.5/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="radarChart"></div>
</div>
</body>
</html>
#radarChart {
height: 600px;
}
var dataSource = [{
arg: "December",
day: 7,
night: 3
}, {
arg: "January",
day: 6,
night: 2
}, {
arg: "February",
day: 7,
night: 3
}, {
arg: "March",
day: 10,
night: 3
}, {
arg: "April",
day: 14,
night: 5
}, {
arg: "May",
day: 18,
night: 8
}, {
arg: "June",
day: 21,
night: 11
}, {
arg: "July",
day: 22,
night: 13
}, {
arg: "August",
day: 21,
night: 13
}, {
arg: "September",
day: 19,
night: 11
}, {
arg: "October",
day: 15,
night: 8
}, {
arg: "November",
day: 10,
night: 4
}];