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Polygon With Hole

  • This example demonstrates creating polygons with inner holes on a map using the Google Maps JavaScript API.

  • It involves defining separate paths for the outer and inner boundaries of the polygon, with the inner path wound in the opposite direction.

  • Thegoogle.maps.Polygon class is used to construct the polygon, accepting an array of paths and styling options.

  • An alternative approach using the Data layer for simpler hole creation is also mentioned.

  • Code samples in TypeScript and JavaScript, along with HTML and CSS, are provided for implementation.

This example creates a polygon with an inner hole, by defining an inner pathwound in the opposite direction to the outer path. Note that you can also usetheDatalayer, which offers a simpler way of creating holes because it handles theorder of the inner and outer paths for you.

Read thedocumentation.

TypeScript

// This example creates a triangular polygon with a hole in it.functioninitMap():void{constmap=newgoogle.maps.Map(document.getElementById("map")asHTMLElement,{zoom:5,center:{lat:24.886,lng:-70.268},});// Define the LatLng coordinates for the polygon's  outer path.constouterCoords=[{lat:25.774,lng:-80.19},{lat:18.466,lng:-66.118},{lat:32.321,lng:-64.757},];// Define the LatLng coordinates for the polygon's inner path.// Note that the points forming the inner path are wound in the// opposite direction to those in the outer path, to form the hole.constinnerCoords=[{lat:28.745,lng:-70.579},{lat:29.57,lng:-67.514},{lat:27.339,lng:-66.668},];// Construct the polygon, including both paths.constbermudaTriangle=newgoogle.maps.Polygon({paths:[outerCoords,innerCoords],strokeColor:"#FFC107",strokeOpacity:0.8,strokeWeight:2,fillColor:"#FFC107",fillOpacity:0.35,});bermudaTriangle.setMap(map);}declareglobal{interfaceWindow{initMap:()=>void;}}window.initMap=initMap;
Note: Read theguide on using TypeScript and Google Maps.

JavaScript

// This example creates a triangular polygon with a hole in it.functioninitMap(){constmap=newgoogle.maps.Map(document.getElementById("map"),{zoom:5,center:{lat:24.886,lng:-70.268},});// Define the LatLng coordinates for the polygon's  outer path.constouterCoords=[{lat:25.774,lng:-80.19},{lat:18.466,lng:-66.118},{lat:32.321,lng:-64.757},];// Define the LatLng coordinates for the polygon's inner path.// Note that the points forming the inner path are wound in the// opposite direction to those in the outer path, to form the hole.constinnerCoords=[{lat:28.745,lng:-70.579},{lat:29.57,lng:-67.514},{lat:27.339,lng:-66.668},];// Construct the polygon, including both paths.constbermudaTriangle=newgoogle.maps.Polygon({paths:[outerCoords,innerCoords],strokeColor:"#FFC107",strokeOpacity:0.8,strokeWeight:2,fillColor:"#FFC107",fillOpacity:0.35,});bermudaTriangle.setMap(map);}window.initMap=initMap;
Note: The JavaScript is compiled from the TypeScript snippet.

CSS

/* * Always set the map height explicitly to define the size of the div element * that contains the map. */#map{height:100%;}/* * Optional: Makes the sample page fill the window. */html,body{height:100%;margin:0;padding:0;}

HTML

<html>  <head>    <title>Polygon With Hole</title>    <link rel="stylesheet" type="text/css" href="./style.css" />    <script type="module" src="./index.js"></script>  </head>  <body>    <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>

Try Sample

Clone Sample

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

gitclone-bsample-polygon-holehttps://github.com/googlemaps/js-samples.gitcdjs-samplesnpminpmstart

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

gitcheckoutsample-SAMPLE_NAMEnpminpmstart

Except as otherwise noted, the content of this page is licensed under theCreative Commons Attribution 4.0 License, and code samples are licensed under theApache 2.0 License. For details, see theGoogle Developers Site Policies. Java is a registered trademark of Oracle and/or its affiliates.

Last updated 2025-12-11 UTC.