Area with Labels and Two Legends
Documentation
The VectorMap widget allows you to use color and size indicators to better illustrate the values associated with areas/markers. Use map legends to provide additional information on colors and marker size.
Feel free to share demo-related thoughts here.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
If you have technical questions, please create a support ticket in the DevExpress Support Center.
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We appreciate your feedback.
<template>
<dx-vector-map
id="vector-map"
:bounds="bounds"
>
<dx-layer
:data-source="mapsWorld"
:color-groups="colorGroups"
:customize="customizeLayer"
name="areas"
color-grouping-field="population"
palette="Violet"
>
<dx-label
:enabled="true"
data-field="name"
/>
</dx-layer>
<dx-layer
:data-source="markers"
:size-groups="sizeGroups"
:opacity="0.8"
name="markers"
element-type="bubble"
data-field="value"
>
<dx-label
:enabled="false"
/>
</dx-layer>
<dx-legend
:customize-items="customizeItems"
:customize-text="customizeText"
title = "World Population<br/>Percentages"
horizontal-alignment="left"
vertical-alignment="bottom"
>
<dx-source
layer="areas"
grouping="color"
/>
</dx-legend>
<dx-legend
:customize-items="customizeItems"
:customize-text="customizeMarkers"
title="City Population"
marker-shape="circle"
horizontal-alignment="right"
vertical-alignment="bottom"
>
<dx-source
layer="markers"
grouping="size"
/>
</dx-legend>
<dx-tooltip
:enabled="true"
:customize-tooltip="customizeTooltip"
/>
</dx-vector-map>
</template>
<script>
import * as mapsData from 'devextreme/dist/js/vectormap-data/world.js';
import {
DxVectorMap,
DxLabel,
DxLayer,
DxLegend,
DxSource,
DxTooltip,
} from 'devextreme-vue/vector-map';
import { populations, markers } from './data.js';
export default {
components: {
DxVectorMap,
DxLabel,
DxLayer,
DxLegend,
DxSource,
DxTooltip
},
data() {
return {
markers,
populations,
colorGroups: [0, 0.5, 0.8, 1, 2, 3, 100],
mapsWorld: mapsData.world,
bounds: [-180, 85, 180, -75],
sizeGroups: [0, 8000, 10000, 50000]
};
},
methods: {
customizeText(itemInfo) {
if(itemInfo.index === 0) {
return '< 0.5%';
} else if (itemInfo.index === 5) {
return '> 3%';
} else {
return `${itemInfo.start }% to ${ itemInfo.end }%`;
}
},
customizeTooltip(info) {
return {
text: info.attribute('text')
};
},
customizeMarkers({ index }) {
return ['< 8000K', '8000K to 10000K', '> 10000K'][index];
},
customizeItems(items) {
return items.reverse();
},
customizeLayer(elements) {
elements.forEach((element) => {
let name = element.attribute('name'),
population = this.populations[name];
if (population) {
element.attribute('population', population);
}
});
}
}
};
</script>
<style>
#vector-map {
height: 700px;
}
</style>
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 populations = {
'China': 19,
'India': 17.4,
'United States': 4.44,
'Indonesia': 3.45,
'Brazil': 2.83,
'Nigeria': 2.42,
'Bangladesh': 2.18,
'Russia': 2.04,
'Japan': 1.77,
'Mexico': 1.67,
'Philippines': 1.39,
'Vietnam': 1.25,
'Ethiopia': 1.23,
'Egypt': 1.21,
'Germany': 1.13,
'Turkey': 1.07,
'Democratic Republic of the Congo': 0.94,
'France': 0.92,
'Thailand': 0.9,
'United Kingdom': 0.89,
'Italy': 0.85,
'Burma': 0.84,
'South Africa': 0.74,
'South Korea': 0.7,
'Colombia': 0.66,
'Spain': 0.65,
'Tanzania': 0.63,
'Kenya': 0.62,
'Ukraine': 0.6,
'Argentina': 0.59,
'Algeria': 0.54,
'Poland': 0.54,
'Sudan': 0.52,
'Canada': 0.49,
'Uganda': 0.49,
'Morocco': 0.46,
'Uzbekistan': 0.43
};
export const markers = {
type: 'FeatureCollection',
features: [
{
coordinates: [-74, 40.7],
text: 'New York City',
value: 8406
},
{
coordinates: [100.47, 13.75],
text: 'Bangkok',
value: 8281
},
{
coordinates: [37.62, 55.75],
text: 'Moscow',
value: 12111
},
{
coordinates: [121.5, 31.2],
text: 'Shanghai',
value: 24150
},
{
coordinates: [-43.18, -22.9],
text: 'Rio de Janeiro',
value: 6429
},
{
coordinates: [31.23, 30.05],
text: 'Cairo',
value: 8922
},
{
coordinates: [28.95, 41],
text: 'Istanbul',
value: 14160
},
{
coordinates: [127, 37.55],
text: 'Seoul',
value: 10388
},
{
coordinates: [139.68, 35.68],
text: 'Tokyo',
value: 9071
},
{
coordinates: [103.83, 1.28],
text: 'Singapore',
value: 5399
},
{
coordinates: [30.3, 59.95],
text: 'Saint Petersburg',
value: 5131
},
{
coordinates: [28.03, -26.2],
text: 'Johannesburg',
value: 4434
},
{
coordinates: [144.95, -37.8],
text: 'Melbourne',
value: 4252
}
].map(data => {
return {
type: 'Feature',
geometry: {
type: 'Point',
coordinates: data.coordinates
},
properties: {
value: data.value,
text: data.text
}
};
})
};
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/dist/js/vectormap-data': 'npm:devextreme@19.2/dist/js/vectormap-data',
'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' },
'devextreme/dist/js/vectormap-data/*': {
esModule: true
}
},
packages: {
'devextreme-vue': {
main: 'index.js'
},
'devextreme': {
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true
}
});