Open mobile scene package

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Opens and displays a scene from a Mobile Scene Package (.mspk).

Image of open mobile scene package

Use case

An .mspk file is an archive containing the data (specifically, basemaps and features), used to display an offline 3D scene.

How to use the sample

When the sample opens, it will automatically display the Scene in the Mobile Map Package.

How it works

  1. Create a MobileScenePackage using the path to the local .mspk file.
  2. Use MobileScenePackage.IsDirectReadSupportedAsync to check whether the package can be read in the archived form (.mspk) or whether it needs to be unpacked.
  3. If the mobile scene package requires unpacking, call MobileScenePackage.UnpackAsync.
  4. Call MobileScenePackage.Load.
  5. When the MobileScenePackage is loaded, obtain the first Scene from the Scenes property.
  6. Display the scene in a SceneView.

Relevant API

  • MobileScenePackage
  • SceneView

Offline data

The following items will be downloaded from ArcGIS Online automatically:

About the data

This mobile scene package was authored with ArcGIS Pro.

Additional information

An .mspk file is an archive containing the data used to display an offline 3D scene. Some mobile scene packages have data that must be unpacked before reading.

Tags

offline, scene

Sample Code

OpenMobileScenePackage.cs
                                                                                          
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// Copyright 2019 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 ArcGISRuntime;
using ArcGISRuntime.Samples.Managers;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.UI.Controls;
using Foundation;
using System;
using System.Diagnostics;
using System.Linq;
using UIKit;

namespace ArcGISRuntimeXamarin.Samples.OpenMobileScenePackage
{
    [Register("OpenMobileScenePackage")]
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        name: "Open mobile scene package",
        category: "Scene",
        description: "Opens and displays a scene from a Mobile Scene Package (.mspk).",
        instructions: "When the sample opens, it will automatically display the Scene in the Mobile Map Package.",
        tags: new[] { "offline", "scene" })]
    [ArcGISRuntime.Samples.Shared.Attributes.OfflineData("7dd2f97bb007466ea939160d0de96a9d")]
    public class OpenMobileScenePackage : UIViewController
    {
        // Hold references to UI controls.
        private SceneView _mySceneView;

        public OpenMobileScenePackage()
        {
            Title = "Open mobile scene package";
        }

        private async void Initialize()
        {
            // Get the path to the scene package.
            string scenePath = DataManager.GetDataFolder("7dd2f97bb007466ea939160d0de96a9d", "philadelphia.mspk");

            try
            {
                // Open the package.
                MobileScenePackage package = await MobileScenePackage.OpenAsync(scenePath);

                // Load the package.
                await package.LoadAsync();

                // Show the first scene.
                _mySceneView.Scene = package.Scenes.First();
            }
            catch (Exception e)
            {
                new UIAlertView("Couldn't open scene", e.Message, (IUIAlertViewDelegate)null, "OK", null).Show();
                Debug.WriteLine(e);
            }
        }

        public override void LoadView()
        {
            // Create the views.
            View = new UIView() { BackgroundColor = ApplicationTheme.BackgroundColor };

            _mySceneView = new SceneView();
            _mySceneView.TranslatesAutoresizingMaskIntoConstraints = false;

            // Add the views.
            View.AddSubviews(_mySceneView);

            // Lay out the views.
            NSLayoutConstraint.ActivateConstraints(new[]
            {
                _mySceneView.TopAnchor.ConstraintEqualTo(View.SafeAreaLayoutGuide.TopAnchor),
                _mySceneView.BottomAnchor.ConstraintEqualTo(View.BottomAnchor),
                _mySceneView.LeadingAnchor.ConstraintEqualTo(View.LeadingAnchor),
                _mySceneView.TrailingAnchor.ConstraintEqualTo(View.TrailingAnchor)
            });
        }

        public override void ViewDidLoad()
        {
            base.ViewDidLoad();
            Initialize();
        }
    }
}

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