Backend API
import React from 'react';
import Chart, {
CommonSeriesSettings,
Series,
ValueErrorBar,
Pane,
ArgumentAxis,
ValueAxis,
Export,
Legend,
Label,
Title,
Tooltip,
Grid,
} from 'devextreme-react/chart';
import { weatherData } from './data.ts';
const customizeTooltip = (pointInfo) => ({
text: `${pointInfo.seriesName}: ${pointInfo.value} (range: ${pointInfo.lowErrorValue} - ${pointInfo.highErrorValue})`,
});
function App() {
return (
<Chart
id="chart"
dataSource={weatherData}
defaultPane="bottom"
>
<CommonSeriesSettings argumentField="month" />
<Series
pane="top"
valueField="avgT"
name="Average Temperature, °C"
>
<ValueErrorBar
lowValueField="avgLowT"
highValueField="avgHighT"
lineWidth={1}
opacity={0.8}
/>
</Series>
<Series
pane="bottom"
valueField="avgH"
type="bar"
name="Average Humidity, %"
>
<ValueErrorBar
type="fixed"
value={3}
lineWidth={1}
/>
</Series>
<Pane name="top" />
<Pane name="bottom" />
<ArgumentAxis>
<Label displayMode="stagger" />
</ArgumentAxis>
<ValueAxis pane="top">
<Grid visible={true} />
<Title text="Temperature, °C" />
</ValueAxis>
<ValueAxis
tickInterval={50}
pane="bottom"
>
<Grid visible={true} />
<Title text="Humidity, %" />
</ValueAxis>
<Legend
verticalAlignment="bottom"
horizontalAlignment="center"
/>
<Export enabled={true} />
<Tooltip
enabled={true}
customizeTooltip={customizeTooltip}
/>
<Title text="Weather in Los Angeles, California" />
</Chart>
);
}
export default App;
import React from 'react';
import Chart, {
CommonSeriesSettings,
Series,
ValueErrorBar,
Pane,
ArgumentAxis,
ValueAxis,
Export,
Legend,
Label,
Title,
Tooltip,
Grid,
} from 'devextreme-react/chart';
import { weatherData } from './data.js';
const customizeTooltip = (pointInfo) => ({
text: `${pointInfo.seriesName}: ${pointInfo.value} (range: ${pointInfo.lowErrorValue} - ${pointInfo.highErrorValue})`,
});
function App() {
return (
<Chart
id="chart"
dataSource={weatherData}
defaultPane="bottom"
>
<CommonSeriesSettings argumentField="month" />
<Series
pane="top"
valueField="avgT"
name="Average Temperature, °C"
>
<ValueErrorBar
lowValueField="avgLowT"
highValueField="avgHighT"
lineWidth={1}
opacity={0.8}
/>
</Series>
<Series
pane="bottom"
valueField="avgH"
type="bar"
name="Average Humidity, %"
>
<ValueErrorBar
type="fixed"
value={3}
lineWidth={1}
/>
</Series>
<Pane name="top" />
<Pane name="bottom" />
<ArgumentAxis>
<Label displayMode="stagger" />
</ArgumentAxis>
<ValueAxis pane="top">
<Grid visible={true} />
<Title text="Temperature, °C" />
</ValueAxis>
<ValueAxis
tickInterval={50}
pane="bottom"
>
<Grid visible={true} />
<Title text="Humidity, %" />
</ValueAxis>
<Legend
verticalAlignment="bottom"
horizontalAlignment="center"
/>
<Export enabled={true} />
<Tooltip
enabled={true}
customizeTooltip={customizeTooltip}
/>
<Title text="Weather in Los Angeles, California" />
</Chart>
);
}
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 weatherData = [{
month: 'January',
avgT: 14.1,
avgLowT: 9.1,
avgHighT: 19.1,
avgH: 70,
}, {
month: 'February',
avgT: 14.7,
avgLowT: 9.8,
avgHighT: 19.6,
avgH: 74,
}, {
month: 'March',
avgT: 15.6,
avgLowT: 10.6,
avgHighT: 20.4,
avgH: 79,
}, {
month: 'April',
avgT: 16.8,
avgLowT: 11.9,
avgHighT: 21.7,
avgH: 80,
}, {
month: 'May',
avgT: 18.2,
avgLowT: 13.6,
avgHighT: 22.7,
avgH: 83,
}, {
month: 'June',
avgT: 20.2,
avgLowT: 15.4,
avgHighT: 25,
avgH: 85,
}, {
month: 'July',
avgT: 22.6,
avgLowT: 17.3,
avgHighT: 27.9,
avgH: 86,
}, {
month: 'August',
avgT: 23,
avgLowT: 17.7,
avgHighT: 28.4,
avgH: 86,
}, {
month: 'September',
avgT: 22.3,
avgLowT: 17,
avgHighT: 27.7,
avgH: 83,
}, {
month: 'October',
avgT: 20.1,
avgLowT: 14.8,
avgHighT: 25.3,
avgH: 79,
}, {
month: 'November',
avgT: 17.2,
avgLowT: 11.8,
avgHighT: 22.7,
avgH: 72,
}, {
month: 'December',
avgT: 14.6,
avgLowT: 9.5,
avgHighT: 19.7,
avgH: 68,
}];
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,
},
'openai': {
'esModule': true,
},
},
paths: {
'npm:': 'https://cdn.jsdelivr.net/npm/',
'bundles:': '../../../../bundles/',
'externals:': '../../../../bundles/externals/',
},
defaultExtension: 'js',
map: {
'ts': 'npm:plugin-typescript@8.0.0/lib/plugin.js',
'typescript': 'npm:typescript@4.2.4/lib/typescript.js',
'jszip': 'npm:jszip@3.10.1/dist/jszip.min.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/prop-types.js',
'rrule': 'npm:rrule@2.6.4/dist/es5/rrule.js',
'luxon': 'npm:luxon@3.4.4/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign',
'devextreme': 'npm:devextreme@25.1.4/cjs',
'devextreme-react': 'npm:devextreme-react@25.1.4/cjs',
'devextreme-quill': 'npm:devextreme-quill@1.7.3/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.2.19/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.62/dist/dx-gantt.js',
'inferno': 'npm:inferno@8.2.3/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat/dist/inferno-compat.min.js',
'inferno-create-element': 'npm:inferno-create-element@8.2.3/dist/inferno-create-element.min.js',
'inferno-dom': 'npm:inferno-dom/dist/inferno-dom.min.js',
'inferno-hydrate': 'npm:inferno-hydrate/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',
'@preact/signals-core': 'npm:@preact/signals-core@1.8.0/dist/signals-core.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-react/common': {
main: 'index.js',
},
'devextreme/events/utils': {
main: 'index',
},
'devextreme/common/core/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',
],
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 weatherData = [
{
month: 'January',
avgT: 14.1,
avgLowT: 9.1,
avgHighT: 19.1,
avgH: 70,
},
{
month: 'February',
avgT: 14.7,
avgLowT: 9.8,
avgHighT: 19.6,
avgH: 74,
},
{
month: 'March',
avgT: 15.6,
avgLowT: 10.6,
avgHighT: 20.4,
avgH: 79,
},
{
month: 'April',
avgT: 16.8,
avgLowT: 11.9,
avgHighT: 21.7,
avgH: 80,
},
{
month: 'May',
avgT: 18.2,
avgLowT: 13.6,
avgHighT: 22.7,
avgH: 83,
},
{
month: 'June',
avgT: 20.2,
avgLowT: 15.4,
avgHighT: 25,
avgH: 85,
},
{
month: 'July',
avgT: 22.6,
avgLowT: 17.3,
avgHighT: 27.9,
avgH: 86,
},
{
month: 'August',
avgT: 23,
avgLowT: 17.7,
avgHighT: 28.4,
avgH: 86,
},
{
month: 'September',
avgT: 22.3,
avgLowT: 17,
avgHighT: 27.7,
avgH: 83,
},
{
month: 'October',
avgT: 20.1,
avgLowT: 14.8,
avgHighT: 25.3,
avgH: 79,
},
{
month: 'November',
avgT: 17.2,
avgLowT: 11.8,
avgHighT: 22.7,
avgH: 72,
},
{
month: 'December',
avgT: 14.6,
avgLowT: 9.5,
avgHighT: 19.7,
avgH: 68,
},
];
<!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/25.1.4/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.css" />
<script src="https://cdn.jsdelivr.net/npm/core-js@2.6.12/client/shim.min.js"></script>
<script src="https://cdn.jsdelivr.net/npm/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>
#chart {
height: 440px;
}
To enable error bars, specify one of the following pairs of valueErrorBar properties:
-
lowValueField and highValueField
Specify predefined error bars for each series point.
This demo implements predefined error bars specified in the Chart data source.