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Displaying Text Directions With setPanel()

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Page Summary

This example showcases the DirectionsRenderer object to display a directions panel alongside a map.
Users can input start and end points to calculate and display a route on the map and in the directions panel.
The directions are calculated using the DirectionsService and rendered using DirectionsRenderer, with driving as the default travel mode.
The sample code provides implementations in both TypeScript and JavaScript.
It demonstrates how to integrate Google Maps Directions functionality into a webpage for route planning and visualization.

This example demonstrates the use of the DirectionsRenderer object to display a directions panel.

Select a new start and end point to see the directions render on the map and inside the directions panel to the right of the map.

Read the documentation.

[フレーム]

TypeScript

functioninitMap():void{
constdirectionsRenderer=newgoogle.maps.DirectionsRenderer();
constdirectionsService=newgoogle.maps.DirectionsService();
constmap=newgoogle.maps.Map(
document.getElementById("map")asHTMLElement,
{
zoom:7,
center:{lat:41.85,lng:-87.65},
disableDefaultUI:true,
}
);
directionsRenderer.setMap(map);
directionsRenderer.setPanel(
document.getElementById("sidebar")asHTMLElement
);
constcontrol=document.getElementById("floating-panel")asHTMLElement;
map.controls[google.maps.ControlPosition.TOP_CENTER].push(control);
constonChangeHandler=function(){
calculateAndDisplayRoute(directionsService,directionsRenderer);
};
(document.getElementById("start")asHTMLElement).addEventListener(
"change",
onChangeHandler
);
(document.getElementById("end")asHTMLElement).addEventListener(
"change",
onChangeHandler
);
}
functioncalculateAndDisplayRoute(
directionsService:google.maps.DirectionsService,
directionsRenderer:google.maps.DirectionsRenderer
){
conststart=(document.getElementById("start")asHTMLInputElement).value;
constend=(document.getElementById("end")asHTMLInputElement).value;
directionsService
.route({
origin:start,
destination:end,
travelMode:google.maps.TravelMode.DRIVING,
})
.then((response)=>{
directionsRenderer.setDirections(response);
})
.catch((e)=>window.alert("Directions request failed due to "+status));
}
declareglobal{
interfaceWindow{
initMap:()=>void;
}
}
window.initMap=initMap;index.ts

JavaScript

functioninitMap(){
constdirectionsRenderer=newgoogle.maps.DirectionsRenderer();
constdirectionsService=newgoogle.maps.DirectionsService();
constmap=newgoogle.maps.Map(document.getElementById("map"),{
zoom:7,
center:{lat:41.85,lng:-87.65},
disableDefaultUI:true,
});
directionsRenderer.setMap(map);
directionsRenderer.setPanel(document.getElementById("sidebar"));
constcontrol=document.getElementById("floating-panel");
map.controls[google.maps.ControlPosition.TOP_CENTER].push(control);
constonChangeHandler=function(){
calculateAndDisplayRoute(directionsService,directionsRenderer);
};
document.getElementById("start").addEventListener("change",onChangeHandler);
document.getElementById("end").addEventListener("change",onChangeHandler);
}
functioncalculateAndDisplayRoute(directionsService,directionsRenderer){
conststart=document.getElementById("start").value;
constend=document.getElementById("end").value;
directionsService
.route({
origin:start,
destination:end,
travelMode:google.maps.TravelMode.DRIVING,
})
.then((response)=>{
directionsRenderer.setDirections(response);
})
.catch((e)=>window.alert("Directions request failed due to "+status));
}
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%;
}
#floating-panel{
position:absolute;
top:10px;
left:25%;
z-index:5;
background-color:#fff;
padding:5px;
border:1pxsolid#999;
text-align:center;
font-family:"Roboto","sans-serif";
line-height:30px;
padding-left:10px;
}
#floating-panel{
background-color:#fff;
border:0;
border-radius:2px;
box-shadow:01px4px-1pxrgba(0,0,0,0.3);
margin:10px;
padding:00.5em;
font:40018pxRoboto,Arial,sans-serif;
overflow:hidden;
padding:5px;
font-size:14px;
text-align:center;
line-height:30px;
height:auto;
}
#map{
flex:auto;
}
#sidebar{
flex:01auto;
padding:0;
}
#sidebar > div{
padding:0.5rem;
}
style.css

HTML

<html>
 <head>
 <title>Displaying Text Directions With setPanel()</title>
 <link rel="stylesheet" type="text/css" href="./style.css" />
 <script type="module" src="./index.js"></script>
 </head>
 <body>
 <div id="floating-panel">
 <strong>Start:</strong>
 <select id="start">
 <option value="chicago, il">Chicago</option>
 <option value="st louis, mo">St Louis</option>
 <option value="joplin, mo">Joplin, MO</option>
 <option value="oklahoma city, ok">Oklahoma City</option>
 <option value="amarillo, tx">Amarillo</option>
 <option value="gallup, nm">Gallup, NM</option>
 <option value="flagstaff, az">Flagstaff, AZ</option>
 <option value="winona, az">Winona</option>
 <option value="kingman, az">Kingman</option>
 <option value="barstow, ca">Barstow</option>
 <option value="san bernardino, ca">San Bernardino</option>
 <option value="los angeles, ca">Los Angeles</option>
 </select>
 <br />
 <strong>End:</strong>
 <select id="end">
 <option value="chicago, il">Chicago</option>
 <option value="st louis, mo">St Louis</option>
 <option value="joplin, mo">Joplin, MO</option>
 <option value="oklahoma city, ok">Oklahoma City</option>
 <option value="amarillo, tx">Amarillo</option>
 <option value="gallup, nm">Gallup, NM</option>
 <option value="flagstaff, az">Flagstaff, AZ</option>
 <option value="winona, az">Winona</option>
 <option value="kingman, az">Kingman</option>
 <option value="barstow, ca">Barstow</option>
 <option value="san bernardino, ca">San Bernardino</option>
 <option value="los angeles, ca">Los Angeles</option>
 </select>
 </div>
 <div id="container">
 <div id="map"></div>
 <div id="sidebar"></div>
 </div>
 <div style="display: none">
 <div id="floating-panel">
 <strong>Start:</strong>
 <select id="start">
 <option value="chicago, il">Chicago</option>
 <option value="st louis, mo">St Louis</option>
 <option value="joplin, mo">Joplin, MO</option>
 <option value="oklahoma city, ok">Oklahoma City</option>
 <option value="amarillo, tx">Amarillo</option>
 <option value="gallup, nm">Gallup, NM</option>
 <option value="flagstaff, az">Flagstaff, AZ</option>
 <option value="winona, az">Winona</option>
 <option value="kingman, az">Kingman</option>
 <option value="barstow, ca">Barstow</option>
 <option value="san bernardino, ca">San Bernardino</option>
 <option value="los angeles, ca">Los Angeles</option>
 </select>
 <br />
 <strong>End:</strong>
 <select id="end">
 <option value="chicago, il">Chicago</option>
 <option value="st louis, mo">St Louis</option>
 <option value="joplin, mo">Joplin, MO</option>
 <option value="oklahoma city, ok">Oklahoma City</option>
 <option value="amarillo, tx">Amarillo</option>
 <option value="gallup, nm">Gallup, NM</option>
 <option value="flagstaff, az">Flagstaff, AZ</option>
 <option value="winona, az">Winona</option>
 <option value="kingman, az">Kingman</option>
 <option value="barstow, ca">Barstow</option>
 <option value="san bernardino, ca">San Bernardino</option>
 <option value="los angeles, ca">Los Angeles</option>
 </select>
 </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-directions-panelhttps://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