<template>
<div>
<div class="long-title"><h3>Energy Production (GWh, 2016)</h3></div>
<div class="pies-container">
<dx-pie-chart
v-for="country in countries"
id="pie-chart"
:key="country"
:data-source="data.filter(i=>i.country===country)"
:inner-radius="0.65"
resolve-label-overlapping="shift"
size-group="piesGroup"
type="doughnut"
center-template="centerTemplate"
>
<dx-series
argument-field="commodity"
value-field="total"
>
<dx-label
:visible="true"
:customize-text="customizeLabel"
background-color="none"
format="fixedPoint"
>
<dx-connector :visible="true"/>
</dx-label>
</dx-series>
<dx-legend :visible="false"/>
<template #centerTemplate="{ data }">
<center-template :pie-chart="data"/>
</template>
</dx-pie-chart>
</div>
</div>
</template>
<script>
import { data } from './data.js';
import { DxPieChart, DxSeries, DxExport, DxTooltip, DxLegend, DxLabel, DxConnector } from 'devextreme-vue/pie-chart';
import CenterTemplate from './CenterTemplate.vue';
export default {
components: {
DxPieChart, DxSeries, DxExport, DxTooltip, DxLegend, DxLabel, DxConnector, CenterTemplate
},
data() {
return {
data: data,
countries: Array.from(new Set(data.map(item => item.country)))
};
},
methods: {
customizeLabel({ argumentText, valueText }) {
return `${argumentText}\n${valueText}`;
}
}
};
</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>
const formatNumber = new Intl.NumberFormat('en-US', {
minimumFractionDigits: 0
}).format;
export default {
props: {
pieChart: {
type: Object,
default: () => ({})
}
},
data() {
return {
country: this.pieChart.getAllSeries()[0].getVisiblePoints()[0].data.country
};
},
methods: {
getImagePath(country) {
return `../../../../images/flags/${ country.replace(/\s/, '').toLowerCase() }.svg`;
},
calculateTotal(pieChart) {
return formatNumber(pieChart.getAllSeries()[0].getVisiblePoints().reduce((s, p) => s + p.originalValue, 0));
}
}
};
</script>
import Vue from 'vue';
import App from './App.vue';
new Vue({
el: '#app',
components: { App },
template: '<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/19.2.4/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/19.2.4/css/dx.light.css" />
<script src="https://unpkg.com/core-js@2.4.1/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 data = [
{ country: 'France', commodity: 'Nuclear', total: 403195 },
{ country: 'Germany', commodity: 'Nuclear', total: 84634 },
{ country: 'France', commodity: 'Thermal', total: 57471 },
{ country: 'Germany', commodity: 'Thermal', total: 419591 },
{ country: 'France', commodity: 'Wind', total: 21400 },
{ country: 'Germany', commodity: 'Wind', total: 78598 },
{ country: 'France', commodity: 'Solar', total: 8160 },
{ country: 'Germany', commodity: 'Solar', total: 38098 },
{ country: 'France', commodity: 'Tidal, Wave', total: 501 }
];
System.config({
transpiler: 'plugin-babel',
paths: {
'npm:': 'https://unpkg.com/'
},
map: {
vue: 'npm:vue@2.6.3/dist/vue.esm.browser.js',
'vue-loader': 'npm:dx-systemjs-vue-browser@latest/index.js',
'devextreme': 'npm:devextreme@19.2',
'devextreme-vue': 'npm:devextreme-vue@19.2',
jszip: 'npm:jszip@3.1.3/dist/jszip.min.js',
'quill': 'npm:quill@1.3.7/dist/quill.js',
'devexpress-diagram': 'npm:devexpress-diagram',
'devexpress-gantt': 'npm:devexpress-gantt',
'plugin-babel': 'npm:systemjs-plugin-babel@0/plugin-babel.js',
'systemjs-babel-build':
'npm:systemjs-plugin-babel@0/systemjs-babel-browser.js'
},
meta: {
'*.vue': { loader: 'vue-loader' }
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});