Display a web scene

Learn how to create and display a scene from a web scene stored in ArcGIS.

display a web scene

This tutorial shows you how to create and display a scene from a web scene. All web scenes are stored in ArcGIS with a unique item ID. You will access an existing web scene by item ID and display its layers. The web scene contains feature layers for the Santa Monica Mountains in California.

Prerequisites

The following are required for this tutorial:

  1. An ArcGIS account to access API keys. If you don't have an account, sign up for free.
  2. A development and deployment environment that meets the system requirements.
  3. An IDE for Android development in Kotlin.

Steps

Open an Android Studio project

  1. To start this tutorial, complete the Display a scene tutorial. Or download and unzip the Display a scene solution in a new folder.

  2. Modify the old project for use in this new tutorial. Expand More info for instructions.

  3. If you downloaded the Display a scene solution project, get your API key and set it in your app.

Get the web scene item ID

You can use ArcGIS tools to create and view web scenes. Use the Scene Viewer to identify the web scene item ID. This item ID will be used later in the tutorial.

  1. Go to the LA Trails and Parks web scene in the Scene Viewer in ArcGIS Online. This web scene displays trails, trailheads and parks in the Santa Monica Mountains.
  2. Make a note of the item ID at the end of the browser's URL. The item ID should be 579f97b2f3b94d4a8e48a5f140a6639b

Add import statements

  1. Replace app-specific import statements with the imports needed for this tutorial. Copy the imports highlighted in yellow below into your MainActivity.kt.
    MainActivity.kt
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    package com.example.app
    
    import androidx.appcompat.app.AppCompatActivity
    import android.os.Bundle
    
    import androidx.databinding.DataBindingUtil
    import com.arcgismaps.ApiKey
    import com.arcgismaps.ArcGISEnvironment
    import com.arcgismaps.mapping.ArcGISScene
    import com.arcgismaps.mapping.view.SceneView
    import com.arcgismaps.portal.Portal
    import com.arcgismaps.mapping.PortalItem
    import com.example.app.databinding.ActivityMainBinding
    
    class MainActivity : AppCompatActivity() {
    

Display the web scene

You can display a web scene using the web scene's item ID. Create a scene from the web scene portal item, and display it in your app.

  1. In the setupScene() method, delete the code for base surface, surface elevation, camera, and camera viewpoint. The web scene defines these characteristics, so you don't have to set them in your app.

    MainActivity.kt
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        // set up your scene here. You will call this method from onCreate()
        private fun setupScene() {
    
            val scene = ArcGISScene(BasemapStyle.ArcGISImagery).apply {
    
                // add base surface for elevation data
                val elevationSource = ArcGISTiledElevationSource("https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer")
                val surface = Surface().apply {
                    elevationSources.add(elevationSource)
                    // add an exaggeration factor to increase the 3D effect of the elevation.
                    elevationExaggeration = 2.5f
                }
    
                baseSurface = surface
    
                // Point(x, y, z, spatialReference)
                val cameraLocation = Point(-118.794, 33.909, 5330.0, SpatialReference.wgs84())
                // Camera(location, heading, pitch, roll)
                val camera = Camera(cameraLocation, 355.0, 72.0, 0.0)
    
                initialViewpoint = Viewpoint(cameraLocation, camera)
    
            }
    
            // set the scene on the scene view
            sceneView.scene = scene
    
        }
    
  2. Also delete the code that creates an ArcGISScene by passing a basemap. In this tutorial, you will pass a portal item instead.

    MainActivity.kt
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        // set up your scene here. You will call this method from onCreate()
        private fun setupScene() {
    
            val scene = ArcGISScene(BasemapStyle.ArcGISImagery).apply {
    
            }
    
            // set the scene on the scene view
            sceneView.scene = scene
    
        }
    
  3. Create a new Portal referencing ArcGIS Online as the url parameter and Anonymous as the connection parameter.

    MainActivity.kt
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        // set up your scene here. You will call this method from onCreate()
        private fun setupScene() {
    
            val portal = Portal("https://www.arcgis.com", Portal.Connection.Anonymous)
    
            // set the scene on the scene view
            sceneView.scene = scene
    
        }
    
    Expand
  4. Create a PortalItem for the web scene, by passing the portal and the web scene's item ID as parameters.

  5. Create an ArcGISScene using the portalitem as the constructor parameter.

    MainActivity.kt
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        // set up your scene here. You will call this method from onCreate()
        private fun setupScene() {
    
            val portal = Portal("https://www.arcgis.com", Portal.Connection.Anonymous)
    
            val itemId = "579f97b2f3b94d4a8e48a5f140a6639b"
            val portalItem = PortalItem(portal, itemId)
    
            val scene = ArcGISScene(portalItem)
    
            // set the scene on the scene view
            sceneView.scene = scene
    
        }
    
    Expand
  6. Use the existing code to display the new ArcGISScene on the scene view by setting the scene property on the SceneView.

    MainActivity.kt
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        // set up your scene here. You will call this method from onCreate()
        private fun setupScene() {
    
            val portal = Portal("https://www.arcgis.com", Portal.Connection.Anonymous)
    
            val itemId = "579f97b2f3b94d4a8e48a5f140a6639b"
            val portalItem = PortalItem(portal, itemId)
    
            val scene = ArcGISScene(portalItem)
    
            // set the scene on the scene view
            sceneView.scene = scene
    
        }
    
    Expand
  7. Click Run > Run > app to run the app.

Your app should display the scene that you viewed earlier in the Scene Viewer.

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