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Pie Charts



The PieChart, like other DevExtreme Data Visualization JavaScript components, provides several built-in palettes. In this demo, you can use the drop-down menus under the PieChart to choose a palette and change how it is extended when it has an insufficient number of colors.

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<template> <div> <div class="flex-container"> <DxPieChart id="pie" :data-source="dataSource" :palette="palette" :palette-extension-mode="paletteExtensionMode.toLowerCase()" > <DxLegend :visible="false"/> <DxSeries/> </DxPieChart> <div class="palette-container flex-block"> <div v-for="color in baseColors" :key="color" :style="{ 'background-color': color }" class="palette-item" /> </div> </div> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>Palette</span> <DxSelectBox :items="paletteCollection" v-model:value="palette" /> </div> <div class="option"> <span>Palette Extension Mode</span> <DxSelectBox :items="paletteExtensionModes" v-model:value="paletteExtensionMode" /> </div> </div> </div> </template> <script> import DxPieChart, { DxSeries, DxLegend } from 'devextreme-vue/pie-chart'; import DxSelectBox from 'devextreme-vue/select-box'; import { paletteCollection, paletteExtensionModes, dataSource } from './data.js'; import { getPalette } from 'devextreme/viz/palette'; export default { components: { DxPieChart, DxSeries, DxLegend, DxSelectBox }, data() { return { paletteCollection, palette: paletteCollection[0], paletteExtensionModes, paletteExtensionMode: paletteExtensionModes[1], dataSource }; }, computed: { baseColors() { return getPalette(this.palette).simpleSet; } } }; </script> <style> .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: 324px; margin-top: 5px; } .option > span { margin: 0 14px 0 0; } .option > .dx-widget { display: inline-block; vertical-align: middle; } </style>
import { createApp } from 'vue'; import App from './App.vue'; createApp(App).mount('#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="" /> <link rel="stylesheet" type="text/css" href="" /> <script src=""></script> <script src=""></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>
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++) { data.push({ arg: `item${i}`, val: 1 }); } export const dataSource = data;
System.config({ transpiler: 'plugin-babel', meta: { '*.vue': { loader: 'vue-loader' }, 'devextreme/localization.js': { "esModule": true }, }, paths: { 'npm:': '' }, map: { 'vue': 'npm:vue@3.0.0/dist/vue.esm-browser.js', 'vue-loader': 'npm:dx-systemjs-vue-browser@1.0.15/index.js', 'mitt': 'npm:mitt/dist/mitt.umd.js', 'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js', 'luxon': 'npm:luxon@1.26.0/build/global/luxon.min.js', 'es6-object-assign': 'npm:es6-object-assign@1.1.0', 'devextreme': 'npm:devextreme@20.2.7', 'devextreme-vue': 'npm:devextreme-vue@20.2.7', 'jszip': 'npm:jszip@3.6.0/dist/jszip.min.js', 'devextreme-quill': 'npm:devextreme-quill@0.10.3/dist/dx-quill.min.js', 'devexpress-diagram': 'npm:devexpress-diagram@2.0.23/dist/dx-diagram.js', 'devexpress-gantt': 'npm:devexpress-gantt@2.0.29/dist/dx-gantt.js', 'preact': 'npm:preact@10.5.13/dist/preact.js', 'preact/hooks': 'npm:preact@10.5.13/hooks/dist/hooks.js', '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-vue': { main: 'index.js' }, 'devextreme': { defaultExtension: 'js' }, 'devextreme/events/utils': { main: 'index' }, 'devextreme/events': { main: 'index' }, 'es6-object-assign': { main: './index.js', defaultExtension: 'js' } }, babelOptions: { sourceMaps: false, stage0: true } });