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Pie with Annotations
Annotations are containers for images, text blocks, and custom content. Annotations can help deliver a more refined user-experience and can improve analysis and readability (by displaying additional information for visualized data).
To create annotations, populate the UI component's annotations array. Each object in the array configures an individual annotation. To specify settings for all annotations, use the commonAnnotationSettings object. Individual settings take precedence over common settings.
You can set each annotation type property to "text", "image", or "custom". In this demo, the type used for all annotations is "image".
Annotations can deliver more information if you add tooltips. A tooltip appears when users hover the mouse pointer over an annotation. This demo illustrates how you can implement a tooltip with custom content via the tooltipTemplate property.
For more information on annotation settings, refer to the annotations[] help topic.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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import React from 'react';
import { dataSource, getAnnotationSources } from './data.js';
import TooltipTemplate from './TooltipTemplate.js';
import PieChart, {
CommonAnnotationSettings,
Annotation,
Image,
Border,
Shadow,
Series,
Label,
Font,
Tooltip,
Legend
} from 'devextreme-react/pie-chart';
const annotationSources = getAnnotationSources();
export default function App() {
return (
<PieChart
id="pie"
palette="Vintage"
dataSource={dataSource}
title="Ice Hockey World Championship Gold Medal Winners"
>
<CommonAnnotationSettings
type="image"
color="transparent"
paddingLeftRight={0}
paddingTopBottom={0}
tooltipRender={TooltipTemplate}
>
<Image
height={60}
width={90}
/>
<Border color="transparent" />
</CommonAnnotationSettings>
{
annotationSources.map(item => (
<Annotation
key={item.country}
argument={item.country}
data={item.data}
location={item.location}
offsetX={item.offsetX}
offsetY={item.offsetY}
color={item.color}>
<Image url={item.image} />
<Border color={item.borderColor} />
<Shadow opacity={item.shadowOpacity} />
</Annotation>
))
}
<Series
argumentField="country"
valueField="gold">
<Label
visible
position="inside"
radialOffset={83}
backgroundColor="transparent">
<Font
size={16}
weight={600}
/>
</Label>
</Series>
<Tooltip
paddingLeftRight={12}
paddingTopBottom={10}
/>
<Legend visible={false} />
</PieChart>
);
}
import React from 'react';
export default function TooltipTemplate(annotation) {
const data = annotation.data;
return (
<div className='medal-tooltip'>
<div className='country-name'>{data.country}
{data.oldCountryName && <br />}{data.oldCountryName}
</div>
<div className='gold'>
<span className='caption'>Gold</span>: {data.gold}
</div>
<div className='silver'>
<span className='caption'>Silver</span>: {data.silver}
</div>
<div className='bronze'>
<span className='caption'>Bronze</span>: {data.bronze}
</div>
</div>
);
}
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/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" />
<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>
#pie {
height: 440px;
}
.medal-tooltip {
font-size: 12px;
}
.medal-tooltip .country-name {
font-size: 14px;
font-weight: 700;
margin: 5px 0px 10px 0px;
}
.medal-tooltip .caption {
font-weight: 600;
}
const annotationSources = [{
country: 'Russia',
offsetX: 15,
offsetY: 5
}, {
country: 'Canada',
offsetY: 10
}, {
country: 'Czech Republic',
offsetX: -5,
offsetY: -35
}, {
country: 'Sweden',
offsetX: 20,
offsetY: -25
}, {
country: 'Finland',
location: 'edge',
offsetX: 45,
offsetY: -85,
}, {
country: 'United States',
location: 'edge',
offsetX: 85,
offsetY: -45,
}, {
country: 'Great Britain',
location: 'edge',
offsetX: 81,
offsetY: 15
}, {
country: 'Slovakia',
location: 'edge',
offsetX: 45,
offsetY: 80
}];
const edgeAnnotationSettings = {
color: '#aaaaaa',
borderColor: '#aaaaaa',
shadowOpacity: 0.3
};
export const dataSource = [{
country: 'Russia',
oldCountryName: 'Soviet Union',
gold: 27,
silver: 10,
bronze: 10
}, {
country: 'Canada',
gold: 26,
silver: 15,
bronze: 9
}, {
country: 'Czech Republic',
oldCountryName: 'Czechoslovakia',
gold: 12,
silver: 13,
bronze: 21
}, {
country: 'Sweden',
gold: 11,
silver: 19,
bronze: 17
}, {
country: 'Finland',
gold: 3,
silver: 8,
bronze: 3
}, {
country: 'United States',
gold: 2,
silver: 9,
bronze: 8
}, {
country: 'Great Britain',
gold: 1,
silver: 2,
bronze: 2
}, {
country: 'Slovakia',
gold: 1,
silver: 2,
bronze: 1
}];
export function getAnnotationSources() {
const annotations = [];
for(let i = 0; i < annotationSources.length; i++) {
let annotation = annotationSources[i];
const country = annotation.country;
const image = `../../../../images/flags/3x2/${country.replace(/\s/, '')}.svg`;
const data = { ...dataSource.filter(d => (d.country === country))[0] };
annotations.push({
...annotation,
image,
data,
...(annotation.location === 'edge' ? edgeAnnotationSettings : {})
});
}
return annotations;
}
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'devextreme-react': 'npm:devextreme-react@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js',
// SystemJS plugins
'plugin-babel': 'npm:systemjs-plugin-babel@0.0.25/plugin-babel.js',
'systemjs-babel-build': 'npm:systemjs-plugin-babel@0.0.25/systemjs-babel-browser.js'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});