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Backend API
<template>
<div>
<div class="long-title"><h3>Energy Production (GWh, 2016)</h3></div>
<div class="pies-container">
<DxPieChart
v-for="country in countries"
id="pie-chart"
:key="country"
:data-source="getData(country)"
:inner-radius="0.65"
resolve-label-overlapping="shift"
size-group="piesGroup"
type="doughnut"
center-template="centerTemplate"
>
<DxSeries
argument-field="commodity"
value-field="total"
>
<DxLabel
:visible="true"
:customize-text="customizeLabel"
background-color="none"
format="fixedPoint"
>
<DxConnector :visible="true"/>
</DxLabel>
</DxSeries>
<DxLegend :visible="false"/>
<template #centerTemplate="data">
<CenterTemplate :pie-chart="data.data"/>
</template>
</DxPieChart>
</div>
</div>
</template>
<script setup lang="ts">
import {
DxPieChart, DxSeries, DxLegend, DxLabel, DxConnector,
} from 'devextreme-vue/pie-chart';
import { data } from './data.ts';
import CenterTemplate from './CenterTemplate.vue';
const countries = Array.from(new Set(data.map(({ country }) => country)));
const customizeLabel = ({ argumentText, valueText }) => `${argumentText}\n${valueText}`;
const getData = (country) => data.filter((i) => i.country === country);
</script>
<style scoped>
.pies-container {
margin: auto;
width: 800px;
}
.pies-container > div {
width: 400px;
float: left;
margin-top: -50px;
}
.long-title h3 {
font-weight: 200;
font-size: 28px;
text-align: center;
margin-bottom: 20px;
}
</style>
<template>
<svg>
<circle
:r="pieChart.getInnerRadius() - 6"
cx="100"
cy="100"
fill="#eee"
/>
<image
:href="getImagePath(country)"
x="70"
y="58"
width="60"
height="40"
/>
<text
:style="{fontSize: 18, fill: '#494949'}"
text-anchor="middle"
x="100"
y="120"
>
<tspan x="100">{{ country }}</tspan><tspan
:style="{ fontWeight: 600 }"
x="100"
dy="20px"
>{{ calculateTotal(pieChart) }}</tspan>
</text>
</svg>
</template>
<script setup lang="ts">
const props = withDefaults(defineProps<{
pieChart?: Record<string, any>
}>(), {
pieChart: () => ({}),
});
const country = props.pieChart
.getAllSeries()[0]
.getVisiblePoints()[0]
.data
.country;
const getImagePath = (countryName) => `../../../../images/flags/${countryName.replace(/\s/, '').toLowerCase()}.svg`;
const calculateTotal = (pieChart) => formatNumber(
pieChart
.getAllSeries()[0]
.getVisiblePoints()
.reduce((s, p) => s + p.originalValue, 0),
);
const formatNumber = new Intl.NumberFormat('en-US', {
minimumFractionDigits: 0,
}).format;
</script>
window.exports = window.exports || {};
window.config = {
transpiler: 'plugin-babel',
meta: {
'*.vue': {
loader: 'vue-loader',
},
'*.ts': {
loader: 'demo-ts-loader',
},
'*.svg': {
loader: 'svg-loader',
},
'devextreme/time_zone_utils.js': {
'esModule': true,
},
'devextreme/localization.js': {
'esModule': true,
},
'devextreme/viz/palette.js': {
'esModule': true,
},
},
paths: {
'root:': '../../../../',
'npm:': 'https://unpkg.com/',
},
map: {
'vue': 'npm:vue@3.2.47/dist/vue.esm-browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@1.1.1/index.js',
'demo-ts-loader': 'root:utils/demo-ts-loader.js',
'svg-loader': 'root:utils/svg-loader.js',
'mitt': 'npm:mitt/dist/mitt.umd.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-vue': 'npm:devextreme-vue@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',
'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-vue': {
main: 'index.js',
},
'devextreme': {
defaultExtension: '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@3.0.13/inferno/package.json',
],
babelOptions: {
sourceMaps: false,
stage0: true,
},
};
System.config(window.config);
export const data = [
{ country: 'France', commodity: 'Nuclear', total: 413278 },
{ country: 'Germany', commodity: 'Nuclear', total: 76536 },
{ country: 'France', commodity: 'Thermal', total: 47594 },
{ country: 'Germany', commodity: 'Thermal', total: 375809 },
{ country: 'France', commodity: 'Wind', total: 21033 },
{ country: 'Germany', commodity: 'Wind', total: 58228 },
{ country: 'France', commodity: 'Solar', total: 7274 },
{ country: 'Germany', commodity: 'Solar', total: 37520 },
{ country: 'France', commodity: 'Tidal, Wave', total: 618 },
];
import { createApp } from 'vue';
import App from './App.vue';
createApp(App).mount('#app');
<!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" />
<script src="https://unpkg.com/typescript@4.9.5/lib/typescript.js"></script>
<script type="module">
import * as vueCompilerSFC from "https://unpkg.com/@vue/compiler-sfc@3.4.16/dist/compiler-sfc.esm-browser.js";
window.vueCompilerSFC = vueCompilerSFC;
</script>
<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.ts");
</script>
</head>
<body class="dx-viewport">
<div class="demo-container">
<div id="app"> </div>
</div>
</body>
</html>