Pie with Resolved Label Overlapping

Documentation

In the PieChart, series may include a large number of points, which may result in point label overlapping. This demo illustrates the resolveLabelOverlapping property that allows you to specify how the component must behave when point labels overlap.

Prev Demo

Next Demo

www.wikipedia.org

Was this demo helpful?

Thank you!

Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.

Thank you for the feedback!

Backend API

<template> <div> <DxPieChart :data-source="dataSource" :resolve-label-overlapping="resolveMode" palette="Bright" title="Olympic Medals in 2008" > <DxSeries argument-field="country" value-field="medals" > <DxLabel :visible="true" :customize-text="formatText" /> </DxSeries> <DxMargin :bottom="20"/> <DxExport :enabled="true"/> <DxLegend :visible="false"/> <DxAnimation :enabled="false"/> </DxPieChart> <div class="options"> <div class="caption">Options</div> <div class="option"> <span>Label Overlapping Resolution Mode</span> <DxSelectBox :data-source="resolveModes" :input-attr="{ 'aria-label': 'Resolution Mode' }" v-model:value="resolveMode" /> </div> </div> </div> </template> <script> import DxPieChart, { DxSeries, DxLabel, DxMargin, DxExport, DxLegend, DxAnimation, } from 'devextreme-vue/pie-chart'; import DxSelectBox from 'devextreme-vue/select-box'; import { dataSource } from './data.js'; export default { components: { DxPieChart, DxSeries, DxLabel, DxMargin, DxExport, DxLegend, DxAnimation, DxSelectBox, }, data() { return { dataSource, resolveModes: ['shift', 'hide', 'none'], resolveMode: 'shift', }; }, methods: { formatText(pointInfo) { return `${pointInfo.argumentText} (${pointInfo.percentText})`; }, }, }; </script> <style> .options { padding: 20px; background-color: rgba(191, 191, 191, 0.15); margin-top: 20px; } .option { margin-top: 10px; display: flex; align-items: center; } .caption { font-size: 18px; font-weight: 500; } .option > span { margin-right: 10px; } .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="https://cdn3.devexpress.com/jslib/23.1.5/css/dx.light.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>

export const dataSource = [{ country: 'USA', medals: 112, }, { country: 'China', medals: 100, }, { country: 'Russia', medals: 60, }, { country: 'Britain', medals: 49, }, { country: 'Australia', medals: 46, }, { country: 'France', medals: 43, }, { country: 'Germany', medals: 41, }, { country: 'South Korea', medals: 32, }, { country: 'Cuba', medals: 29, }, { country: 'Italy', medals: 27, }, { country: 'Japan', medals: 25, }, { country: 'Ukraine', medals: 22, }, { country: 'Canada', medals: 20, }, { country: 'Spain', medals: 19, }];