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KML Feature Details

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Page Summary

This example demonstrates how to display a KML feature's description in a side panel when it's clicked on a Google Map.
It utilizes the Google Maps JavaScript API's KML layer functionality to load and display KML data.
Upon clicking a KML feature, the code retrieves its description and updates the content of a designated sidebar element.
The sample code is provided in both TypeScript and JavaScript, along with accompanying HTML and CSS for styling and layout.

This example includes a KML feature object. When the feature is clicked, the map displays its Description text within a side <div>.

Read the documentation.

[フレーム]

TypeScript

functioninitMap():void{
constmap=newgoogle.maps.Map(
document.getElementById("map")asHTMLElement,
{
zoom:12,
center:{lat:37.06,lng:-95.68},
}
);
constkmlLayer=newgoogle.maps.KmlLayer({
url:"https://raw.githubusercontent.com/googlearchive/kml-samples/gh-pages/kml/Placemark/placemark.kml",
suppressInfoWindows:true,
map:map,
});
kmlLayer.addListener("click",(kmlEvent)=>{
consttext=kmlEvent.featureData.description;
showInContentWindow(text);
});
functionshowInContentWindow(text:string){
constsidebar=document.getElementById("sidebar")asHTMLElement;
sidebar.innerHTML=text;
}
}
declareglobal{
interfaceWindow{
initMap:()=>void;
}
}
window.initMap=initMap;index.ts

JavaScript

functioninitMap(){
constmap=newgoogle.maps.Map(document.getElementById("map"),{
zoom:12,
center:{lat:37.06,lng:-95.68},
});
constkmlLayer=newgoogle.maps.KmlLayer({
url:"https://raw.githubusercontent.com/googlearchive/kml-samples/gh-pages/kml/Placemark/placemark.kml",
suppressInfoWindows:true,
map:map,
});
kmlLayer.addListener("click",(kmlEvent)=>{
consttext=kmlEvent.featureData.description;
showInContentWindow(text);
});
functionshowInContentWindow(text){
constsidebar=document.getElementById("sidebar");
sidebar.innerHTML=text;
}
}
window.initMap=initMap;index.js

CSS

/* Optional: Makes the sample page fill the window. */
html,
body{
height:100%;
margin:0;
padding:0;
}
#container{
height:100%;
display:flex;
}
#sidebar{
flex-basis:15rem;
flex-grow:1;
padding:1rem;
max-width:30rem;
height:100%;
box-sizing:border-box;
overflow:auto;
}
#map{
flex-basis:0;
flex-grow:4;
height:100%;
}
style.css

HTML

<html>
 <head>
 <title>KML Feature Details</title>
 <link rel="stylesheet" type="text/css" href="./style.css" />
 <script type="module" src="./index.js"></script>
 </head>
 <body>
 <div id="container">
 <div id="map"></div>
 <div id="sidebar"></div>
 </div>
 <!-- 
 The `defer` attribute causes the script to execute after the full HTML
 document has been parsed. For non-blocking uses, avoiding race conditions,
 and consistent behavior across browsers, consider loading using Promises. See
 https://developers.google.com/maps/documentation/javascript/load-maps-js-api
 for more information.
 -->
 <script
 src="https://maps.googleapis.com/maps/api/js?key=AIzaSyB41DRUbKWJHPxaFjMAwdrzWzbVKartNGg&callback=initMap&v=weekly"
 defer
 ></script>
 </body>
</html>index.html

Clone Sample

Git and Node.js are required to run this sample locally. Follow these instructions to install Node.js and NPM. The following commands clone, install dependencies and start the sample application.

gitclone-bsample-layer-kml-featureshttps://github.com/googlemaps/js-samples.git
cdjs-samples
npmi
npmstart

Other samples can be tried by switching to any branch beginning with sample-SAMPLE_NAME.

gitcheckoutsample-SAMPLE_NAME
npmi
npmstart