Discrete scale
Documentation
In this demo, a discrete scale is used to select a range within a set of categories.
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var DemoApp = angular.module('DemoApp', ['dx']);
DemoApp.controller('DemoController', function DemoController($scope) {
$scope.totalResult = "12,809,000";
$scope.rangeSelectorOptions = {
size: {
height: 200
},
dataSource: dataSource,
chart: {
commonSeriesSettings: {
argumentField: "country",
type: "bar"
},
series: [
{ valueField: "copper", name: "Copper" }
]
},
title: "Copper Production in 2013",
onValueChanged: function (e) {
var data = e.component.option("dataSource"),
total = 0,
startIndex,
endIndex;
data.forEach(function(item, i){
if (item.country == e.value[0] )
startIndex = i;
else if (item.country == e.value[1])
endIndex = i;
});
if(endIndex) {
data
.slice(startIndex, endIndex + 1)
.forEach(function(item){
total += item.copper;
});
}
else {
total = data[startIndex].copper;
}
$scope.totalResult = Globalize.formatNumber(total, { maximumFractionDigits: 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/3.4.1/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/cldrjs/0.4.4/cldr.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr/event.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr/supplemental.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/cldrjs/0.4.4/cldr/unresolved.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.1.1/globalize.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.1.1/globalize/message.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.1.1/globalize/number.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.1.1/globalize/currency.min.js"></script>
<script type="text/javascript" src="https://cdnjs.cloudflare.com/ajax/libs/globalize/1.1.1/globalize/date.min.js"></script>
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.1.5/css/dx.light.css" />
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.3.16/angular.min.js"></script>
<script>window.angular || document.write(decodeURIComponent('%3Cscript src="js/angular.min.js"%3E%3C\/script%3E'))</script>
<script src="https://cdn3.devexpress.com/jslib/19.1.5/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" ng-app="DemoApp" ng-controller="DemoController">
<div id="range-selector-demo">
<div id="range-selector" dx-range-selector="rangeSelectorOptions"></div>
<h2>Total: <span>{{totalResult}}</span> tons</h2>
</div>
</div>
</body>
</html>
#range-selector-demo {
height: 440px;
width: 100%;
text-align: center;
}
#range-selector {
margin-bottom: 20px;
}
var dataSource = [
{ country: "Chile", copper: 5700000 },
{ country: "United States", copper: 1220000 },
{ country: "Peru", copper: 1300000 },
{ country: "China", copper: 1650000 },
{ country: "Australia", copper: 990000 },
{ country: "Russia", copper: 930000 },
{ country: "DR Congo", copper: 900000 },
{ country: "Finland", copper: 119000 }
];