Scene layer (URL)

View inMAUIUWPWPFWinUIView on GitHub

Display an ArcGIS scene layer from a URL.

Image of scene layer URL

Use case

Adding a scene layer from a URL allows you to author the scene layer elsewhere in the platform, say with ArcGIS Pro or CityEngine, and then add that scene layer to a scene in Runtime. Loading a scene layer from a URL also permits the layer source to change dynamically without updating the code.

How to use the sample

Pan and zoom to explore the scene.

How it works

  1. Create an ArcGISSceneLayer passing in the URL to a scene layer service.
  2. Wait for the user to tap with the sceneView.GeoViewTapped event and get the tapped screen point.
  3. Call sceneView.IdentifyLayersAsync(sceneLayer, screenPoint, tolerance, false, 1) to identify features in the scene.
  4. From the resulting IdentifyLayerResult, get the list of identified GeoElements with result.GeoElements.
  5. Get the first element in the list, checking that it is a feature, and call sceneLayer.SelectFeature(feature) to select it.

Relevant API

  • ArcGISScene
  • ArcGISSceneLayer
  • SceneView

About the data

This sample shows a Portland, Oregon USA Scene hosted on ArcGIS Online.

Tags

3D, buildings, model, Portland, scene, service, URL

Sample Code

SceneLayerUrl.xaml.csSceneLayerUrl.xaml.csSceneLayerUrl.xaml
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// Copyright 2022 Esri.
//
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License.
// You may obtain a copy of the License at: http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific
// language governing permissions and limitations under the License.

using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;

namespace ArcGIS.Samples.SceneLayerUrl
{
    [ArcGIS.Samples.Shared.Attributes.Sample(
        name: "Scene layer (URL)",
        category: "Layers",
        description: "Display an ArcGIS scene layer from a URL.",
        instructions: "Pan and zoom to explore the scene.",
        tags: new[] { "3D", "Portland", "URL", "buildings", "model", "scene", "service" })]
    public partial class SceneLayerUrl : ContentPage
    {
        // URL for a service to use as an elevation source.
        private readonly Uri _elevationSourceUrl = new Uri(
            "https://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer");

        // URL for the scene layer.
        private readonly Uri _serviceUri = new Uri(
            "https://tiles.arcgis.com/tiles/P3ePLMYs2RVChkJx/arcgis/rest/services/Buildings_Portland/SceneServer");

        public SceneLayerUrl()
        {
            InitializeComponent();
            _ = Initialize();
        }

        private async Task Initialize()
        {
            // Create new Scene.
            Scene myScene = new Scene { Basemap = new Basemap(BasemapStyle.ArcGISImageryStandard) };

            // Create and add an elevation source for the Scene.
            ArcGISTiledElevationSource elevationSrc = new ArcGISTiledElevationSource(_elevationSourceUrl);
            myScene.BaseSurface.ElevationSources.Add(elevationSrc);

            // Create new scene layer from the URL.
            ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(_serviceUri);

            // Add created layer to the operational layers collection.
            myScene.OperationalLayers.Add(sceneLayer);

            try
            {
                // Load the layer.
                await sceneLayer.LoadAsync();

                // Get the center of the scene layer.
                MapPoint center = (MapPoint)sceneLayer.FullExtent.GetCenter().Project(SpatialReferences.Wgs84);

                // Create a camera with coordinates showing layer data.
                Camera camera = new Camera(center.Y, center.X, 225, 220, 80, 0);

                // Assign the Scene to the SceneView.
                MySceneView.Scene = myScene;

                // Set view point of scene view using camera.
                await MySceneView.SetViewpointCameraAsync(camera);
            }
            catch (Exception e)
            {
                await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
            }
        }
    }
}

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