Palette
The PieChart, like other DevExtreme Data Visualization components, allows you to apply multiple predefined palettes. In this demo, you can use two drop-down menus under the PieChart to choose a palette and change the way it is extended when the number of colors is insufficient to paint each series point differently.
Specify a Palette
A palette is a set of colors that mix well with each other. To apply the needed color scheme, you can assign it to the palette property. It accepts either the name of a predefined palette or an array of colors. In this demo, you can use the "Palette" selector to apply a new set of colors.
Extend a Palette
When the number of palette colors is less than the number of series points, you can use the paletteExtensionMode property to specify how to extend the palette. This property can accept one of the following values:
-
"blend"
Create a blend of two neighboring colors and insert it between these colors in the palette. -
"alternate"
Repeat the full set of palette colors, alternating their normal, lightened, and darkened shades in that order. -
"extrapolate"
Repeat the full set of palette colors, changing their shade gradually from dark to light.
In this demo, you can use the "Palette Extension Mode" selector to apply one of these modes.
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.
Thank you!
We appreciate your feedback.
We appreciate your feedback.
import React from 'react';
import PieChart, {
Series,
Legend,
} from 'devextreme-react/pie-chart';
import SelectBox from 'devextreme-react/select-box';
import { getPalette } from 'devextreme/viz/palette';
import { paletteCollection, paletteExtensionModes, dataSource } from './data.js';
class App extends React.Component {
constructor(props) {
super(props);
this.state = {
palette: paletteCollection[0],
extensionMode: paletteExtensionModes[1],
};
this.setPalette = this.setPalette.bind(this);
this.setExtensionMode = this.setExtensionMode.bind(this);
}
render() {
return (
<React.Fragment>
<div className="flex-container">
<PieChart
id="pie"
dataSource={dataSource}
palette={this.state.palette}
paletteExtensionMode={this.state.extensionMode.toLowerCase()}
>
<Legend visible={false} />
<Series />
</PieChart>
<div className="palette-container flex-block">
{getPalette(this.state.palette).simpleSet.map((color) => (
<div
className="palette-item"
style={{ backgroundColor: color }}
key={color}
/>
))}
</div>
</div>
<div className="options">
<div className="caption">Options</div>
<div className="options-container">
<div className="option">
<span>Palette </span>
<SelectBox
items={paletteCollection}
defaultValue={this.state.palette}
onValueChanged={this.setPalette}
/>
</div>
<div className="option">
<span>Palette Extension Mode </span>
<SelectBox
items={paletteExtensionModes}
defaultValue={this.state.extensionMode}
onValueChanged={this.setExtensionMode}
/>
</div>
</div>
</div>
</React.Fragment>
);
}
setPalette(e) {
this.setState({
palette: e.value,
});
}
setExtensionMode(e) {
this.setState({
extensionMode: e.value,
});
}
}
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/22.2.3/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.js");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"></div>
</div>
</body>
</html>
.flex-container {
display: flex;
justify-content: center;
align-items: center;
flex-direction: row;
}
#pie {
height: 350px;
width: 500px;
margin: 20px;
}
.palette-container {
float: left;
}
.palette-item {
width: 40px;
height: 40px;
}
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option {
display: inline-block;
min-width: 320px;
margin-top: 5px;
}
.option > span {
margin: 0 10px 0 0;
}
.option > .dx-widget {
display: inline-block;
vertical-align: middle;
}
.options-container {
display: flex;
align-items: center;
}
.options-container > .option {
display: flex;
align-items: baseline;
}
export const paletteCollection = ['Material', 'Soft Pastel', 'Harmony Light', 'Pastel', 'Bright', 'Soft', 'Ocean', 'Office', 'Vintage', 'Violet', 'Carmine', 'Dark Moon', 'Soft Blue', 'Dark Violet', 'Green Mist'];
export const paletteExtensionModes = ['Alternate', 'Blend', 'Extrapolate'];
const data = [];
for (let i = 0; i < 20; i += 1) {
data.push({
arg: `item${i}`,
val: 1,
});
}
export const dataSource = data;
window.config = {
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
'esModule': true,
},
},
paths: {
'npm:': 'https://unpkg.com/',
},
defaultExtension: 'js',
map: {
'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@1.28.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@22.2.3/cjs',
'devextreme-react': 'npm:devextreme-react@22.2.3',
'jszip': 'npm:jszip@3.7.1/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@1.5.20/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.1.65/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@4.1.37/dist/dx-gantt.js',
'@devextreme/runtime': 'npm:@devextreme/runtime@3.0.11',
'inferno': 'npm:inferno@7.4.11/dist/inferno.min.js',
'inferno-compat': 'npm:inferno-compat@7.4.11/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@7.4.11/dist/inferno-clone-vnode.min.js',
'inferno-create-class': 'npm:inferno-create-class@7.4.11/dist/inferno-create-class.min.js',
'inferno-extras': 'npm:inferno-extras@7.4.11/dist/inferno-extras.min.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',
// Prettier
'prettier/standalone': 'npm:prettier@2.7.1/standalone.js',
'prettier/parser-html': 'npm:prettier@2.7.1/parser-html.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',
},
},
packageConfigPaths: [
'npm:@devextreme/*/package.json',
'npm:@devextreme/runtime@3.0.11/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
react: true,
},
};
System.config(window.config);