Vue Charts - Export Custom Markup

The DevExpress.viz.exportFromMarkup(markup, options) method allows you to export SVG content, including SVG-based DevExtreme components, to an image or document.

The markup parameter accepts valid SVG markup (see the prepareMarkup() function in the code). To get the markup of a component, call its svg() method. The options parameter accepts an object whose fields configure export properties. In this demo, we specify the width, height, format, and svgToCanvas fields. Refer to the method description for more information on these and other available fields.

Backend API

<template> <div id="chart-demo"> <div class="chart-environment"> <Form ref="form"/> <DxChart id="chart" ref="chart" :data-source="dataSource" palette="Violet" > <DxCommonSeriesSettings :bar-padding="0.3" argument-field="state" type="bar" /> <DxSeries value-field="year2000" name="2000" /> <DxSeries value-field="year2010" name="2010" /> <DxSeries value-field="year2020" name="2020" /> <DxSeries value-field="year2021" name="2021" /> <DxSeries value-field="year2022" name="2022" /> <DxLegend vertical-alignment="bottom" horizontal-alignment="center" /> <DxTitle text="Oil Production" subtitle="(in millions tonnes)" /> </DxChart> </div> <div class="controls-pane"> <DxButton id="export" :width="145" icon="export" type="default" text="Export" @click="onClick()" /> </div> </div> </template> <script setup lang="ts"> import { ref } from 'vue'; import { DxChart, DxSeries, DxCommonSeriesSettings, DxLegend, DxTitle, } from 'devextreme-vue/chart'; import { exportFromMarkup } from 'devextreme/viz/export'; import DxButton from 'devextreme-vue/button'; import { Canvg } from 'canvg'; import { dataSource } from './data.ts'; import Form from './Form.vue'; const form = ref(); const chart = ref(); const prepareMarkup = (chartSVG: string, sourceContainer: HTMLElement): SVGElement => { const sourceElements = sourceContainer.querySelectorAll('*'); const svg = document.createElementNS('http://www.w3.org/2000/svg', 'svg'); svg.setAttribute('xmlns', 'http://www.w3.org/2000/svg'); svg.setAttribute('xmlns:xlink', 'http://www.w3.org/1999/xlink'); svg.setAttribute('version', '1.1'); svg.setAttribute('width', '820px'); svg.setAttribute('height', '420px'); const clonedContainer = sourceContainer.cloneNode(true) as HTMLElement; const clonedElements = clonedContainer.querySelectorAll('*'); clonedElements.forEach((clonedEl, index) => { const sourceEl = sourceElements[index] as HTMLElement; if (!sourceEl) return; const computed = window.getComputedStyle(sourceEl); ['fill', 'font-family', 'font-size', 'font-weight', 'opacity', 'stroke', 'stroke-width'].forEach((prop) => { const value = computed.getPropertyValue(prop)?.trim(); if (value && value !== 'auto' && value !== 'normal' && value !== 'initial') { (clonedEl as SVGElement).setAttribute(prop, value); } }); }); svg.innerHTML = clonedContainer.innerHTML; const group = document.createElementNS('http://www.w3.org/2000/svg', 'g'); group.setAttribute('transform', 'translate(305,12)'); group.innerHTML = chartSVG; svg.appendChild(group); return svg; }; function onClick(): void { const chartSVG = chart.value.instance.svg(); const formContent = form.value.getMarkup(); exportFromMarkup(prepareMarkup(chartSVG, formContent), { width: 820, height: 420, margin: 0, format: 'png', svgToCanvas(svg: SVGElement, canvas: HTMLCanvasElement) { return new Promise((resolve) => { const v = Canvg.fromString( canvas.getContext('2d')!, new XMLSerializer().serializeToString(svg), ); resolve(v.render()); }); }, }); } </script> <style> #chart-demo { height: 460px; } #chart { position: absolute; top: 12px; right: 35px; width: 480px; height: 347px; } .chart-environment { width: 820px; position: relative; margin: 0 auto; } .controls-pane { display: block; text-align: center; } </style>

<template> <div class="custom-markup-container"> <svg version="1.1" width="820px" height="420px" > <path d="M 0 0 L 820 0 L 820 420 L 0 420 L 0 0" stroke="#999999" stroke-width="1" stroke-linecap="butt" fill="white" stroke-linejoin="miter" /> <path d="M 13 407 L 128 407 L 232 39 L 13 39" fill="#6D39C3" /> <path d="M 46 381 L 161 381 L 265 13 L 46 13" opacity="0.5" fill="#6D39C3" /> <text transform="translate(30,89)" class="custom-markup-text custom-markup-text-title" > <tspan x="0" y="0" >Export </tspan> <tspan x="0" y="38" >Custom</tspan> <tspan x="0" y="76" >Markup</tspan> </text> <text transform="translate(32,199)" class="custom-markup-text custom-markup-text-subtitle" > <tspan x="0" y="0" >Export a chart with</tspan> <tspan x="0" y="19.2" >custom elements</tspan> </text> </svg> </div> </template> <script setup lang="ts"> defineExpose({ getMarkup(): HTMLElement { // @ts-ignore return this.$el; }, }); </script> <style> .custom-markup-text { fill: #fff; font-family: 'Segoe UI', 'Helvetica Neue', 'Trebuchet MS', Verdana, sans-serif; } .custom-markup-text-title { font-size: 36px; font-weight: bold; } .custom-markup-text-subtitle { font-size: 14px; opacity: 0.8; } </style>

export const dataSource = [{ state: 'Saudi Arabia', year2000: 408, year2010: 407, year2020: 498, year2021: 515, year2022: 602, }, { state: 'USA', year2000: 288, year2010: 270, year2020: 713, year2021: 711, year2022: 762, }, { state: 'Mexico', year2000: 150, year2010: 146, year2020: 101, year2021: 97, year2022: 95, }];

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/26.1.5/css/dx.light.css" /> <link rel="stylesheet" type="text/css" href="./bundle.css" /> </head> <body class="dx-viewport"> <div class="demo-container"> <div id="app"> </div> </div> <script src="bundles/vendor/vue.vendor.js"></script> <script src="./bundle.js"></script> </body> </html>