Vue Vector Map - Zooming and Centering

This demo shows the VectorMap zooming and centering capabilities. The map contains several cities represented by dot markers. To identify a city, pause on its marker, and the name of the city will appear in a tooltip. Moreover, if you click the marker, the map will be zoomed and centered on it. In code it is performed by calling the center(centerCoordinates) and zoomFactor(zoomFactor) methods. A click on the «Reset» button restores default center coordinates and zoom factor.

Backend API

<template> <div> <DxVectorMap id="vector-map" ref="vectorMap" :bounds="bounds" @click="markerClick" > <DxLayer :data-source="mapsWorld" :hover-enabled="false" /> <DxLayer :data-source="markers"/> <DxTooltip :enabled="true" :customize-tooltip="customizeTooltip" /> </DxVectorMap> <DxButton id="reset" text="Reset" @click="reset" /> </div> </template> <script setup lang="ts"> import { ref } from 'vue'; // @ts-ignore import * as mapsData from 'devextreme-dist/js/vectormap-data/world.js'; import { DxVectorMap, DxLayer, DxTooltip, type DxVectorMapTypes, } from 'devextreme-vue/vector-map'; import { DxButton, } from 'devextreme-vue/button'; import { markers } from './data.ts'; const mapsWorld = mapsData.world; const bounds = [-180, 85, 180, -60]; const vectorMap = ref(); function customizeTooltip(info: any) { if (info.layer.type === 'marker') { return { text: info.attribute('name') }; } return {}; } function markerClick(e: DxVectorMapTypes.ClickEvent) { if (e.target?.layer.type === 'marker') { e.component.center(e.target.coordinates()); e.component.zoomFactor(10); } } function reset() { const vectorMapInstance = vectorMap.value.instance; vectorMapInstance.center(null); vectorMapInstance.zoomFactor(null); } </script> <style> #vector-map { height: 420px; } #reset { margin: 10px 2px; } </style>

export const markers = [ { coordinates: [-0.1262, 51.5002], attributes: { name: 'London', }, }, { coordinates: [149.1286, -35.2820], attributes: { name: 'Canberra', }, }, { coordinates: [139.6823, 35.6785], attributes: { name: 'Tokyo', }, }, { coordinates: [-77.0241, 38.8921], attributes: { name: 'Washington', }, }, { coordinates: [-75.6794, 45.4214], attributes: { name: 'Ottawa', }, }, { coordinates: [37.617778, 55.751667], attributes: { name: 'Moscow', }, }, { coordinates: [116.4, 39.933333], attributes: { name: 'Beijing', }, }, { coordinates: [12.5, 41.9], attributes: { name: 'Rome', }, }, { coordinates: [23.716667, 38], attributes: { name: 'Athens', }, }, { coordinates: [2.333333, 48.833333], attributes: { name: 'Paris', }, }, { coordinates: [-3.683333, 40.4], attributes: { name: 'Madrid', }, }, { coordinates: [-47.866667, -15.798889], attributes: { name: 'Brasilia', }, }, ];

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>