Area
Documentation
Area series can be used to clearly emphasize change in values. In this example, you can switch between the area, stacked area and full-stacked area series types. Stacked area series help visualize multiple series and compare the manner in which each series contributes to the total aggregate value for specific arguments. Full-stacked area series help compare the percentage value of multiple area series for each argument.
www.geohive.com
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import React from 'react';
import SelectBox from 'devextreme-react/select-box';
import {
Chart,
Series,
ArgumentAxis,
CommonSeriesSettings,
Export,
Legend,
Margin
} from 'devextreme-react/chart';
import { dataSource } from './data.js';
const types = ['area', 'stackedarea', 'fullstackedarea'];
class App extends React.Component {
constructor(props) {
super(props);
this.state = {
type: types[0]
};
this.handleChange = this.handleChange.bind(this);
}
handleChange(e) {
this.setState({
type: e.value
});
}
render() {
return (
<div id={'chart-demo'}>
<Chart
palette={'Harmony Light'}
title={'Population: Age Structure (2000)'}
dataSource={dataSource}
>
<CommonSeriesSettings
argumentField={'country'}
type={this.state.type}
/>
<Series valueField={'y1564'} name={'15-64 years'}></Series>
<Series valueField={'y014'} name={'0-14 years'}></Series>
<Series valueField={'y65'} name={'65 years and older'}></Series>
<Margin bottom={20} />
<ArgumentAxis valueMarginsEnabled={false} />
<Legend
verticalAlignment={'bottom'}
horizontalAlignment={'center'}
/>
<Export enabled={true} />
</Chart>
<div className={'options'}>
<div className={'caption'}>Options</div>
<div className={'option'}>
<span>Series Type </span>
<SelectBox
dataSource={types}
value={this.state.type}
onValueChanged={this.handleChange}
/>
</div>
</div>
</div>
);
}
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(
<App />,
document.getElementById('app')
);
<!DOCTYPE html>
<html>
<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" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.3/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.4.1/client/shim.min.js"></script>
<script src="https://unpkg.com/systemjs@0.21.3/dist/system.js"></script>
<script type="text/javascript" src="config.js"></script>
<script type="text/javascript">
System.import('./index.js');
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
.option {
margin-top: 10px;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option > span {
margin-right: 10px;
}
.option > .dx-widget {
display: inline-block;
vertical-align: middle;
}
export const dataSource = [{
country: 'China',
y014: 320866959,
y1564: 853191410,
y65: 87774113
}, {
country: 'India',
y014: 340419115,
y1564: 626520945,
y65: 47063757
}, {
country: 'United States',
y014: 58554755,
y1564: 182172625,
y65: 34835293
}, {
country: 'Indonesia',
y014: 68715705,
y1564: 146014815,
y65: 10053690
}, {
country: 'Brazil',
y014: 50278034,
y1564: 113391494,
y65: 9190842
}, {
country: 'Russia',
y014: 26465156,
y1564: 101123777,
y65: 18412243
}];
System.config({
transpiler: 'plugin-babel',
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16/umd/react.development.js',
'react-dom': 'npm:react-dom@16/umd/react-dom.development.js',
'prop-types': 'npm:prop-types/prop-types.js',
'devextreme': 'npm:devextreme@19.2',
'devextreme-react': 'npm:devextreme-react@19.2',
'jszip': 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devexpress-gantt': 'npm:devexpress-gantt',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});