googlemaps-samples · willum070 · Mar 3, 2026
diff --git a/samples/deckgl-arclayer/README.md b/samples/deckgl-arclayer/README.md
@@ -0,0 +1,41 @@
+# Google Maps JavaScript Sample
+
+## deckgl-arclayer
+
+This example uses arcs to show curved point-to-point connections between airports and the city of Prague.
+
+## Setup
+
+### Before starting run:
+
+`npm i`
+
+### Run an example on a local web server
+
+`cd samples/deckgl-arclayer`
+`npm start`
+
+### Build an individual example
+
+`cd samples/deckgl-arclayer`
+`npm run build`
+
+From 'samples':
+
+`npm run build --workspace=deckgl-arclayer/`
+
+### Build all of the examples.
+
+From 'samples':
+
+`npm run build-all`
+
+### Run lint to check for problems
+
+`cd samples/deckgl-arclayer`
+`npx eslint index.ts` 
+
+## Feedback
+
+For feedback related to this sample, please open a new issue on
+[GitHub](https://github.com/googlemaps-samples/js-api-samples/issues).
diff --git a/samples/deckgl-arclayer/index.html b/samples/deckgl-arclayer/index.html
@@ -0,0 +1,22 @@
+<!doctype html>
+<!--
+ @license
+ Copyright 2026 Google LLC. All Rights Reserved.
+ SPDX-License-Identifier: Apache-2.0
+-->
+<!-- [START maps_deckgl_arclayer] -->
+<html>
+    <head>
+        <title>deck.gl ArcLayer</title>
+
+        <link rel="stylesheet" type="text/css" href="./style.css" />
+        <!-- prettier-ignore -->
+        <script>(g=>{var h,a,k,p="The Google Maps JavaScript API",c="google",l="importLibrary",q="__ib__",m=document,b=window;b=b[c]||(b[c]={});var d=b.maps||(b.maps={}),r=new Set,e=new URLSearchParams,u=()=>h||(h=new Promise(async(f,n)=>{await (a=m.createElement("script"));e.set("libraries",[...r]+"");for(k in g)e.set(k.replace(/[A-Z]/g,t=>"_"+t[0].toLowerCase()),g[k]);e.set("callback",c+".maps."+q);a.src=`https://maps.${c}apis.com/maps/api/js?`+e;d[q]=f;a.onerror=()=>h=n(Error(p+" could not load."));a.nonce=m.querySelector("script[nonce]")?.nonce||"";m.head.append(a)}));d[l]?console.warn(p+" only loads once. Ignoring:",g):d[l]=(f,...n)=>r.add(f)&&u().then(()=>d[l](f,...n))})
+        ({key: "AIzaSyA6myHzS10YXdcazAFalmXvDkrYCp5cLc8", v: "weekly", internalUsageAttributionIds: "gmp_git_jsapisamples_v1_deckgl-arclayer" });</script>
+        <script type="module" src="./index.js"></script>
+    </head>
+    <body>
+        <gmp-map center="50,14" map-id="90f87356969d889c" zoom="3"></gmp-map>
+    </body>
+</html>
+<!-- [END maps_deckgl_arclayer] -->
diff --git a/samples/deckgl-arclayer/index.ts b/samples/deckgl-arclayer/index.ts
@@ -0,0 +1,53 @@
+/**
+ * @license
+ * Copyright 2026 Google LLC.
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+// [START maps_deckgl_arclayer]
+import { GoogleMapsOverlay } from '@deck.gl/google-maps';
+import { ArcLayer } from '@deck.gl/layers';
+import type * as GeoJSON from 'geojson';
+
+type Properties = { scalerank: number };
+type Feature = GeoJSON.Feature<GeoJSON.Point, Properties>;
+type Data = GeoJSON.FeatureCollection<GeoJSON.Point, Properties>;
+
+//let map;
+
+async function initMap() {
+    // Request needed libraries.
+    (await google.maps.importLibrary('maps')) as google.maps.MapsLibrary;
+
+    // Get the gmp-map element.
+    const mapElement = document.querySelector(
+        'gmp-map'
+    ) as google.maps.MapElement;
+
+    // Get the inner map.
+    const innerMap = mapElement.innerMap;
+
+    innerMap.setTilt(30); // Set tilt after map initialization.
+
+    const flightsLayer = new ArcLayer<Feature>({
+        id: 'flights',
+        data: '/ne_10m_airports.geojson', // See public/ne_10m_airports.geojson
+        dataTransform: (data: any) =>
+            data.features.filter((f: any) => f.properties.scalerank < 4),
+        getSourcePosition: () => [14.42076, 50.08804], // Prague
+        getTargetPosition: (f: Feature) =>
+            f.geometry.coordinates as [number, number],
+        getSourceColor: [0, 128, 200],
+        getTargetColor: [0, 0, 80],
+        getWidth: 1,
+    });
+
+    const overlay = new GoogleMapsOverlay({
+        layers: [flightsLayer],
+    });
+
+    overlay.setMap(innerMap);
+}
+
+initMap();
+// [END maps_deckgl_arclayer]
diff --git a/samples/deckgl-arclayer/package.json b/samples/deckgl-arclayer/package.json
@@ -0,0 +1,17 @@
+{
+  "name": "@js-api-samples/deckgl-arclayer",
+  "version": "1.0.0",
+  "scripts": {
+    "build": "tsc && bash ../jsfiddle.sh deckgl-arclayer && bash ../app.sh deckgl-arclayer && bash ../docs.sh deckgl-arclayer && npm run build:vite --workspace=. && bash ../dist.sh deckgl-arclayer",
+    "test": "tsc && npm run build:vite --workspace=.",
+    "start": "tsc && vite build --base './' && vite",
+    "build:vite": "vite build --base './'",
+    "preview": "vite preview"
+  },
+  "dependencies": {
+    "@deck.gl/core": "^9.2.10",
+    "@deck.gl/google-maps": "^9.2.10",
+    "@deck.gl/layers": "^9.2.10",
+    "deck.gl": "^9.2.10"
+  }
+}