www.wikipedia.org
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Backend API
import React from 'react';
import {
PolarChart,
CommonSeriesSettings,
Series,
CommonAnnotationSettings,
Annotation,
ArgumentAxis,
Strip,
Legend,
} from 'devextreme-react/polar-chart';
import { dataSource, maxDay, minNight } from './data.ts';
const maxTempText = `Highest temperature: ${maxDay.day} °C`;
const minTempText = `Lowest temperature: ${minNight.night} °C`;
function App() {
return (
<PolarChart
id="radarChart"
dataSource={dataSource}
title="Average temperature in London"
>
<CommonSeriesSettings
type="bar"
opacity={0.75}
/>
<Series
valueField="day"
name="Day"
color="#fdff5e"
/>
<Series
valueField="night"
name="Night"
color="#0f3b59"
/>
<CommonAnnotationSettings
opacity={0.7}
arrowLength={0}
type="text"
/>
<Annotation
angle={45}
radius={180}
text="WINTER"
/>
<Annotation
angle={135}
radius={180}
text="SPRING"
/>
<Annotation
angle={225}
radius={180}
text="SUMMER"
/>
<Annotation
angle={315}
radius={180}
text="FALL"
/>
<Annotation
argument={maxDay.arg}
opacity={1}
offsetX={105}
paddingTopBottom={15}
paddingLeftRight={15}
text={maxTempText}
series="Day"
/>
<Annotation
argument={minNight.arg}
opacity={1}
offsetX={105}
paddingTopBottom={15}
paddingLeftRight={15}
text={minTempText}
series="Night"
/>
<ArgumentAxis>
<Strip
startValue="December"
endValue="February"
color="#0076d1">
</Strip>
<Strip
startValue="March"
endValue="May"
color="#3ca3b0">
</Strip>
<Strip
startValue="June"
endValue="August"
color="#3fbc1e">
</Strip>
<Strip
startValue="September"
endValue="November"
color="#f0bb00">
</Strip>
</ArgumentAxis>
<Legend
horizontalAlignment="center"
verticalAlignment="bottom"
/>
</PolarChart>
);
}
export default App;
import React from 'react';
import {
PolarChart,
CommonSeriesSettings,
Series,
CommonAnnotationSettings,
Annotation,
ArgumentAxis,
Strip,
Legend,
} from 'devextreme-react/polar-chart';
import { dataSource, maxDay, minNight } from './data.js';
const maxTempText = `Highest temperature: ${maxDay.day} °C`;
const minTempText = `Lowest temperature: ${minNight.night} °C`;
function App() {
return (
<PolarChart
id="radarChart"
dataSource={dataSource}
title="Average temperature in London"
>
<CommonSeriesSettings
type="bar"
opacity={0.75}
/>
<Series
valueField="day"
name="Day"
color="#fdff5e"
/>
<Series
valueField="night"
name="Night"
color="#0f3b59"
/>
<CommonAnnotationSettings
opacity={0.7}
arrowLength={0}
type="text"
/>
<Annotation
angle={45}
radius={180}
text="WINTER"
/>
<Annotation
angle={135}
radius={180}
text="SPRING"
/>
<Annotation
angle={225}
radius={180}
text="SUMMER"
/>
<Annotation
angle={315}
radius={180}
text="FALL"
/>
<Annotation
argument={maxDay.arg}
opacity={1}
offsetX={105}
paddingTopBottom={15}
paddingLeftRight={15}
text={maxTempText}
series="Day"
/>
<Annotation
argument={minNight.arg}
opacity={1}
offsetX={105}
paddingTopBottom={15}
paddingLeftRight={15}
text={minTempText}
series="Night"
/>
<ArgumentAxis>
<Strip
startValue="December"
endValue="February"
color="#0076d1"
></Strip>
<Strip
startValue="March"
endValue="May"
color="#3ca3b0"
></Strip>
<Strip
startValue="June"
endValue="August"
color="#3fbc1e"
></Strip>
<Strip
startValue="September"
endValue="November"
color="#f0bb00"
></Strip>
</ArgumentAxis>
<Legend
horizontalAlignment="center"
verticalAlignment="bottom"
/>
</PolarChart>
);
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.tsx';
ReactDOM.render(
<App />,
document.getElementById('app'),
);
export const 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,
}];
export const maxDay = dataSource
.reduce((prev, current) => (prev.day >= current.day ? prev : current));
export const minNight = dataSource
.reduce((prev, current) => (prev.day <= current.day ? prev : current));
window.exports = window.exports || {};
window.config = {
transpiler: 'ts',
typescriptOptions: {
module: 'system',
emitDecoratorMetadata: true,
experimentalDecorators: true,
jsx: 'react',
},
meta: {
'react': {
'esModule': true,
},
'typescript': {
'exports': 'ts',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@4.2.4/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'react': 'npm:react@17.0.2/umd/react.development.js',
'react-dom': 'npm:react-dom@17.0.2/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.8.1/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.28.1/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@24.1.6/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.6/cjs',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.7.1/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.11/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.56/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.13',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@7.4.11/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate@7.4.11/dist/inferno-hydrate.min.js',
'inferno-clone-vnode': 'npm:inferno-clone-vnode/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras/dist/inferno-extras.min.js',
'devextreme-cldr-data': 'npm:devextreme-cldr-data@1.0.3',
// 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',
// Prettier
'prettier/standalone': 'npm:prettier@2.8.8/standalone.js',
'prettier/parser-html': 'npm:prettier@2.8.8/parser-html.js',
},
packages: {
'devextreme': {
defaultExtension: 'js',
},
'devextreme-react': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/localization/messages': {
format: 'json',
defaultExtension: 'json',
},
'devextreme/events': {
main: 'index',
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(<App />, document.getElementById('app'));
export const 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,
},
];
export const maxDay = dataSource.reduce((prev, current) =>
(prev.day >= current.day ? prev : current));
export const minNight = dataSource.reduce((prev, current) =>
(prev.day <= current.day ? prev : current));
<!DOCTYPE html>
<html lang="en">
<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=5.0" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/24.1.6/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://unpkg.com/core-js@2.6.12/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.tsx");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
#radarChart {
height: 600px;
}
You can place annotations at specific coordinates or anchor them to PolarChart elements. This demo illustrates the following annotation placement methods:
- Angle and radius properties specify the position of annotations with season names.
- Annotations with temperatures are anchored to series points, and the offsetX, paddingTopBottom, and paddingLeftRight properties specify their position.
For more information on annotation settings, refer to the annotations[] help topic.