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Display multiple basemap layers | CesiumJS

Learn how to display multiple basemap layers from different services to your scene.

Display multiple basemap layers with API key authentication Display multiple basemap layers with user authentication

This tutorial shows how to display two basemap layers from different services in your application. You will use the World Imagery map tile service satellite imagery basemap to provide the underlying visual and geographic context for the map. To provide additional context, you will use the arcgis/imagery/labels style from the ArcGIS Static Basemap Tiles service to display place labels for the world. The combination of the two layers will result in a basemap that provides additional context for the mapping application.

Mapping and location services guide

To learn more, go to Introduction to the Static Basemap Tiles service.

Prerequisites

An ArcGIS Location Platform account.

Steps Get the starter app

Select a type of authentication below and follow the steps to create a new application.

You can choose one of the following to create a new CodePen:

  1. Go to the Display a scene tutorial and download the solution.
  2. Unzip the folder and open it in a text editor of your choice, such as Visual Studio Code. The starter app includes the following:
Set up authentication

Create developer credentials in your portal for the type of authentication you selected.

Create a new API key credential with the correct privileges to access the resources used in this tutorial.

  1. Go to the Create an API key tutorial and create an API key with the following privilege(s):
  2. Copy the API key access token to your clipboard when prompted.

Create a new OAuth credential to register the application.

  1. Go to the Create OAuth credentials for user authentication tutorial to create an OAuth credential.
  2. Copy the Client ID and Redirect URL from your OAuth credentials item and paste them to a safe location. They will be used in a later step.
Note

To use this application, users must have an ArcGIS account with the necessary privileges to access all resources and services.

Set developer credentials

Use the API key or OAuth developer credentials created in the previous step in your application.

  1. Add <script> elements in the HTML <body> and create an accessToken variable to store your access token. Set YOUR_ACCESS_TOKEN with the access token you previously copied from your API key credentials.

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  <script>

    /* Use for API key authentication */
    const accessToken = "YOUR_ACCESS_TOKEN";

  </script>

  2. Set the defaultAccessToken included with Cesium to authenticate requests to the ArcGIS services used in this tutorial.

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  <script>

    /* Use for API key authentication */
    const accessToken = "YOUR_ACCESS_TOKEN";

    Cesium.ArcGisMapService.defaultAccessToken = accessToken;

  </script>

  1. In both the index.html and callback.html files, set the properties of clientId and redirectUri with the client ID and redirect URL of your OAuth credentials.

    index.html

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    /* Use for user authentication */
    const clientId = "YOUR_CLIENT_ID"; // Your client ID from OAuth credentials
    const redirectUri = "YOUR_REDIRECT_URI"; // The redirect URL registered in your OAuth credentials
    const session = await arcgisRest.ArcGISIdentityManager.beginOAuth2({
      clientId,
      redirectUri,
      portal: "https://www.arcgis.com/sharing/rest" // Your portal URL
    })

    const accessToken = session.token;

    callback.html

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    arcgisRest.ArcGISIdentityManager.completeOAuth2({
      clientId: "YOUR_CLIENT_ID", // Your client ID from OAuth credentials
      redirectUri: "YOUR_REDIRECT_URI", // The redirect URL registered in your OAuth credentials
      portal: "https://www.arcgis.com/sharing/rest" // Your portal URL
    })

  2. Run the app and ensure you can sign in successfully.

    If you are unable to sign in, make sure you have the correct redirect URL and port. This URL varies based on your application and typically takes the format of https://<server>[:port]/callback.html or http://my-arcgis-app:/auth. For example, if you are running an application on http://127.0.0.1:5500/, set http://127.0.0.1:5500/callback.html as your redirect URL in the index.html and callback.html file and your developer credential. They all have to match!

  3. Set the defaultAccessToken included with Cesium to authenticate requests to the ArcGIS services used in this tutorial.

    index.html

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    Cesium.ArcGisMapService.defaultAccessToken = accessToken;
Get a Cesium ion access token

All Cesium applications must use an access token provided through Cesium ion. This token allows you to access assets such as Cesium World Terrain in your application.

  1. Go to your Cesium ion dashboard to generate an access token. Copy the key to your clipboard.

  2. Create a cesiumAccessToken variable and replace YOUR_CESIUM_ACCESS_TOKEN with the access token you copied from the Cesium ion dashboard.

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  <script>

    /* Use for API key authentication */
    const accessToken = "YOUR_ACCESS_TOKEN";

    // or

    /* Use for user authentication */
    // const session = await arcgisRest.ArcGISIdentityManager.beginOAuth2({
    //   clientId: "YOUR_CLIENT_ID", // Your client ID from OAuth credentials
    //   redirectUri: "YOUR_REDIRECT_URI", // The redirect URL registered in your OAuth credentials
    //   portal: "YOUR_PORTAL_URL" // Your portal URL
    // })

    // const accessToken = session.token;

    Cesium.ArcGisMapService.defaultAccessToken = accessToken;

    const cesiumAccessToken = "YOUR_CESIUM_ACCESS_TOKEN";

  </script>

  3. Configure Cesium.Ion.defaultAccessToken with the Cesium access token to validate the application.

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  <script>

    /* Use for API key authentication */
    const accessToken = "YOUR_ACCESS_TOKEN";

    // or

    /* Use for user authentication */
    // const session = await arcgisRest.ArcGISIdentityManager.beginOAuth2({
    //   clientId: "YOUR_CLIENT_ID", // Your client ID from OAuth credentials
    //   redirectUri: "YOUR_REDIRECT_URI", // The redirect URL registered in your OAuth credentials
    //   portal: "YOUR_PORTAL_URL" // Your portal URL
    // })

    // const accessToken = session.token;

    Cesium.ArcGisMapService.defaultAccessToken = accessToken;

    const cesiumAccessToken = "YOUR_CESIUM_ACCESS_TOKEN";

    Cesium.Ion.defaultAccessToken = cesiumAccessToken;

  </script>
Update the camera viewpoint

  1. Update the camera viewpoint to [-98.5795, 39.8283] and scale to 3000000. This will focus the map on the United States of America.

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      viewer.camera.setView({
        destination: Cesium.Cartesian3.fromDegrees(-98.5795, 39.8283, 1000000)
      });
Add basemap layer 1

Use the Cesium.ArcGisMapServerImageryProvider to add a basemap layer from the World Imagery map tile service.

  1. Create a tileLayer from Cesium.ArcGisMapServerImageryProvider and pass in the World Imagery map tile service.

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      const tileLayer = Cesium.ArcGisMapServerImageryProvider.fromUrl(
        "https://ibasemaps-api.arcgis.com/arcgis/rest/services/World_Imagery/MapServer",
        {
          token: accessToken
        }
      );

  2. Once the tile layer is created, add it to the Cesium viewer's imagery layers. This basemap layer provides a visual context to your scene.

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      const tileLayer = Cesium.ArcGisMapServerImageryProvider.fromUrl(
        "https://ibasemaps-api.arcgis.com/arcgis/rest/services/World_Imagery/MapServer",
        {
          token: accessToken
        }
      );

      viewer.scene.imageryLayers.add(Cesium.ImageryLayer.fromProviderAsync(tileLayer));
Add basemap layer 2

In this step, you add another basemap layer using the Cesium.ArcGisMapServerImageryProvider with the arcgis/imagery/labels style from the Static Basemap Tiles service. This basemap layer will provide place labels to your scene.

  1. Create a staticBasemapTileLayer from Cesium.ArcGisMapServerImageryProvider and pass in the arcgis/imagery/labels style from the static basemap tiles service.

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      const staticBasemapTileLayer = new Cesium.UrlTemplateImageryProvider({
        url: `https://static-map-tiles-api.arcgis.com/arcgis/rest/services/static-basemap-tiles-service/v1/arcgis/imagery/labels/static/tile/{z}/{y}/{x}?token=${accessToken}`,
        tileWidth: 512,
        tileHeight: 512,
        credit: "Powered by <a href='https://www.esri.com/en-us/home' target='_blank'>Esri</a>"
      });

  2. Once the static basemap tile layer is created, add it on top of the map tile layer.

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      const staticBasemapTileLayer = new Cesium.UrlTemplateImageryProvider({
        url: `https://static-map-tiles-api.arcgis.com/arcgis/rest/services/static-basemap-tiles-service/v1/arcgis/imagery/labels/static/tile/{z}/{y}/{x}?token=${accessToken}`,
        tileWidth: 512,
        tileHeight: 512,
        credit: "Powered by <a href='https://www.esri.com/en-us/home' target='_blank'>Esri</a>"
      });

      viewer.scene.imageryLayers.add(Cesium.ImageryLayer.fromProviderAsync(staticBasemapTileLayer));
Run the app

Run the app.

The scene should display basemap layers from the

World Imagery map tile service

and the

Static Basemap Tiles service

.

What's next?

Learn how to use additional ArcGIS Location Services in these tutorials:

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