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Backend API
import React from 'react';
import {
Chart,
Series,
Strip,
StripStyle,
Legend,
ValueAxis,
Label,
Font,
Export,
} from 'devextreme-react/chart';
import { temperaturesData, lowAverage, highAverage } from './data.ts';
const highAverageColor = '#ff9b52';
const lowAverageColor = '#6199e6';
function customizePoint(arg: { value: number; }) {
if (arg.value > highAverage) {
return { color: highAverageColor };
}
if (arg.value < lowAverage) {
return { color: lowAverageColor };
}
return null;
}
function customizeLabel(arg: { value: number; }) {
if (arg.value > highAverage) {
return getLabelsSettings(highAverageColor);
}
if (arg.value < lowAverage) {
return getLabelsSettings(lowAverageColor);
}
return null;
}
function getLabelsSettings(backgroundColor: string) {
return {
visible: true,
backgroundColor,
customizeText,
};
}
function customizeText(arg: { valueText: string; }) {
return `${arg.valueText}°F`;
}
function App() {
return (
<Chart
id="chart"
title="Temperature (high) in September, °F"
dataSource={temperaturesData}
customizePoint={customizePoint}
customizeLabel={customizeLabel}
>
<Series
argumentField="day"
valueField="temperature"
type="spline"
color="#a3aaaa"
/>
<ValueAxis>
<Label customizeText={customizeText} />
<Strip startValue={highAverage} color="rgba(255,155,85,0.15)">
<Label text="Above average high">
<Font color={highAverageColor} />
</Label>
</Strip>
<Strip endValue={lowAverage} color="rgba(97,153,230,0.10)">
<Label text="Below average low">
<Font color={lowAverageColor} />
</Label>
</Strip>
<StripStyle>
<Label>
<Font weight={500} size="14" />
</Label>
</StripStyle>
</ValueAxis>
<Legend visible={false} />
<Export enabled />
</Chart>
);
}
export default App;
import React from 'react';
import {
Chart,
Series,
Strip,
StripStyle,
Legend,
ValueAxis,
Label,
Font,
Export,
} from 'devextreme-react/chart';
import { temperaturesData, lowAverage, highAverage } from './data.js';
const highAverageColor = '#ff9b52';
const lowAverageColor = '#6199e6';
function customizePoint(arg) {
if (arg.value > highAverage) {
return { color: highAverageColor };
}
if (arg.value < lowAverage) {
return { color: lowAverageColor };
}
return null;
}
function customizeLabel(arg) {
if (arg.value > highAverage) {
return getLabelsSettings(highAverageColor);
}
if (arg.value < lowAverage) {
return getLabelsSettings(lowAverageColor);
}
return null;
}
function getLabelsSettings(backgroundColor) {
return {
visible: true,
backgroundColor,
customizeText,
};
}
function customizeText(arg) {
return `${arg.valueText}°F`;
}
function App() {
return (
<Chart
id="chart"
title="Temperature (high) in September, °F"
dataSource={temperaturesData}
customizePoint={customizePoint}
customizeLabel={customizeLabel}
>
<Series
argumentField="day"
valueField="temperature"
type="spline"
color="#a3aaaa"
/>
<ValueAxis>
<Label customizeText={customizeText} />
<Strip
startValue={highAverage}
color="rgba(255,155,85,0.15)"
>
<Label text="Above average high">
<Font color={highAverageColor} />
</Label>
</Strip>
<Strip
endValue={lowAverage}
color="rgba(97,153,230,0.10)"
>
<Label text="Below average low">
<Font color={lowAverageColor} />
</Label>
</Strip>
<StripStyle>
<Label>
<Font
weight={500}
size="14"
/>
</Label>
</StripStyle>
</ValueAxis>
<Legend visible={false} />
<Export enabled />
</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 temperaturesData = [
{ temperature: 52, day: '1' },
{ temperature: 57, day: '2' },
{ temperature: 58, day: '3' },
{ temperature: 56, day: '4' },
{ temperature: 59, day: '5' },
{ temperature: 59, day: '6' },
{ temperature: 56, day: '7' },
{ temperature: 62, day: '8' },
{ temperature: 57, day: '9' },
{ temperature: 54, day: '10' },
{ temperature: 52, day: '11' },
{ temperature: 58, day: '12' },
{ temperature: 53, day: '13' },
{ temperature: 54, day: '14' },
{ temperature: 57, day: '15' },
{ temperature: 61, day: '16' },
{ temperature: 58, day: '17' },
{ temperature: 63, day: '18' },
{ temperature: 64, day: '19' },
{ temperature: 52, day: '20' },
];
export const highAverage = 60.8;
export const lowAverage = 53;
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@24.1.7/cjs',
'devextreme-react': 'npm:devextreme-react@24.1.7/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@2.2.12/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 temperaturesData = [
{ temperature: 52, day: '1' },
{ temperature: 57, day: '2' },
{ temperature: 58, day: '3' },
{ temperature: 56, day: '4' },
{ temperature: 59, day: '5' },
{ temperature: 59, day: '6' },
{ temperature: 56, day: '7' },
{ temperature: 62, day: '8' },
{ temperature: 57, day: '9' },
{ temperature: 54, day: '10' },
{ temperature: 52, day: '11' },
{ temperature: 58, day: '12' },
{ temperature: 53, day: '13' },
{ temperature: 54, day: '14' },
{ temperature: 57, day: '15' },
{ temperature: 61, day: '16' },
{ temperature: 58, day: '17' },
{ temperature: 63, day: '18' },
{ temperature: 64, day: '19' },
{ temperature: 52, day: '20' },
];
export const highAverage = 60.8;
export const lowAverage = 53;
<!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/24.1.7/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>
#chart {
height: 440px;
}
You can specify the same appearance for all strips on a specific axis or in the Chart. To specify the same appearance, declare the stripStyle object in the valueAxis, argumentAxis, or commonAxisSettings object. Individual settings override common settings. In this example, we used the stripStyle object to specify the font weight and size for all strip labels on the value axis.