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Markers
Documentation
The Map UI component can display markers on the map. The collection of displayed markers is declared in the markers array. Markers can include tooltips that provide additional information.
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import React from 'react';
import Map from 'devextreme-react/map';
import Button from 'devextreme-react/button';
import CheckBox from 'devextreme-react/check-box';
import { markersData } from './data.js';
const markerUrl = 'https://js.devexpress.com/Demos/RealtorApp/images/map-marker.png';
class App extends React.Component {
constructor(props) {
super(props);
this.originMarkersData = markersData;
this.state = {
markerUrl: markerUrl,
markersData: markersData
};
this.useCustomMarkers = this.useCustomMarkers.bind(this);
this.showTooltips = this.showTooltips.bind(this);
}
useCustomMarkers(e) {
this.setState({
markerUrl: e.value ? markerUrl : null,
markersData: this.originMarkersData
});
}
showTooltips() {
this.setState({
markersData: this.state.markersData.map(function(item) {
let newItem = JSON.parse(JSON.stringify(item));
newItem.tooltip.isShown = true;
return newItem;
})
});
}
render() {
return (
<div>
<Map
defaultCenter={['Brooklyn Bridge', 'New York', 'NY']}
defaultZoom={11}
height={440}
width="100%"
controls={true}
markerIconSrc={this.state.markerUrl}
markers={this.state.markersData}
provider="bing">
</Map>
<div className="options">
<div className="caption">Options</div>
<div className="option">
<CheckBox
defaultValue={true}
text="Use custom marker icons"
onValueChanged={this.useCustomMarkers}
/>
</div>
<div className="option">
<Button
text="Show all tooltips"
onClick={this.showTooltips}
/>
</div>
</div>
</div>
);
}
}
export default App;
import React from 'react';
import ReactDOM from 'react-dom';
import App from './App.js';
ReactDOM.render(
<App />,
document.getElementById('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/20.2.5/css/dx.common.css" />
<link rel="stylesheet" type="text/css" href="https://cdn3.devexpress.com/jslib/20.2.5/css/dx.light.css" />
<link rel="stylesheet" type="text/css" href="styles.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>
.options {
padding: 20px;
background-color: rgba(191, 191, 191, 0.15);
margin-top: 20px;
}
.caption {
font-size: 18px;
font-weight: 500;
}
.option {
margin-top: 10px;
}
export const markersData = [{
location: [40.755833, -73.986389],
tooltip: {
text: 'Times Square'
}
}, {
location: '40.7825, -73.966111',
tooltip: {
text: 'Central Park'
}
}, {
location: { lat: 40.753889, lng: -73.981389 },
tooltip: {
text: 'Fifth Avenue'
}
}, {
location: 'Brooklyn Bridge,New York,NY',
tooltip: {
text: 'Brooklyn Bridge'
}
}];
System.config({
transpiler: 'plugin-babel',
meta: {
'devextreme/localization.js': {
"esModule": true
},
},
paths: {
'npm:': 'https://unpkg.com/'
},
defaultExtension: 'js',
map: {
'react': 'npm:react@16.14.0/umd/react.development.js',
'react-dom': 'npm:react-dom@16.14.0/umd/react-dom.development.js',
'prop-types': 'npm:prop-types@15.7.2/prop-types.js',
'rrule': 'npm:rrule@2.6.6/dist/es5/rrule.js',
'luxon': 'npm:luxon@1.25.0/build/global/luxon.min.js',
'es6-object-assign': 'npm:es6-object-assign@1.1.0',
'devextreme': 'npm:devextreme@20.2.5',
'devextreme-react': 'npm:devextreme-react@20.2.5',
'jszip': 'npm:jszip@3.5.0/dist/jszip.min.js',
'devextreme-quill': 'npm:devextreme-quill@0.9.8/dist/dx-quill.min.js',
'devexpress-diagram': 'npm:devexpress-diagram@2.0.11/dist/dx-diagram.js',
'devexpress-gantt': 'npm:devexpress-gantt@2.0.18/dist/dx-gantt.js',
'preact': 'npm:preact@10.5.11/dist/preact.js',
'preact/hooks': 'npm:preact@10.5.11/hooks/dist/hooks.js',
// SystemJS plugins
'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'
},
packages: {
'devextreme': {
defaultExtension: 'js'
},
'devextreme-react': {
main: 'index.js'
},
'devextreme/events/utils': {
main: 'index'
},
'devextreme/events': {
main: 'index'
},
'es6-object-assign': {
main: './index.js',
defaultExtension: 'js'
}
},
babelOptions: {
sourceMaps: false,
stage0: true,
react: true
}
});