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GlobeCameraController Constructor

Initializes a new instance of the GlobeCameraController class.

Namespace:  Esri.ArcGISRuntime.UI
Assembly:  Esri.ArcGISRuntime (in Esri.ArcGISRuntime.dll) Version: 100.8.0.0
Syntax
C#
public GlobeCameraController()
Remarks
A Globe camera controller is used to perform free roaming global navigation.
Examples

Android

Example Name: ChooseCameraController

Control the behavior of the camera in a scene.

Code example screen shot.

C#
// 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 Android.App;
using Android.OS;
using Android.Widget;
using ArcGISRuntime;
using ArcGISRuntime.Samples.Managers;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.Symbology;
using Esri.ArcGISRuntime.UI;
using Esri.ArcGISRuntime.UI.Controls;
using System;
using Surface = Esri.ArcGISRuntime.Mapping.Surface;

namespace ArcGISRuntimeXamarin.Samples.ChooseCameraController
{
    [Activity(ConfigurationChanges = Android.Content.PM.ConfigChanges.Orientation | Android.Content.PM.ConfigChanges.ScreenSize)]
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        "Choose camera controller",
        "MapView",
        "Control the behavior of the camera in a scene.",
        "")]
    [ArcGISRuntime.Samples.Shared.Attributes.AndroidLayout("ChooseCameraController.axml")]
    [ArcGISRuntime.Samples.Shared.Attributes.OfflineData("681d6f7694644709a7c830ec57a2d72b")]
    public class ChooseCameraController : Activity
    {
        // View for the scene.
        private SceneView _mySceneView;

        // Path for elevation data.
        private readonly Uri _elevationUri = new Uri("http://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer");

        // Path for the plane model.
        private readonly Uri _modelUri = new Uri(DataManager.GetDataFolder("681d6f7694644709a7c830ec57a2d72b", "Bristol.dae"));

        // Geo element camera controller.
        private OrbitGeoElementCameraController _orbitPlaneCameraController;

        // Location camera controller.
        private OrbitLocationCameraController _orbitCraterCameraController;

        // Globe camera controller.
        private readonly GlobeCameraController _globeCameraController = new GlobeCameraController();

        protected override void OnCreate(Bundle bundle)
        {
            base.OnCreate(bundle);

            Title = "Choose camera controller";

            CreateLayout();
            Initialize();
        }

        private async void Initialize()
        {
            // Create a scene.
            Scene myScene = new Scene(Basemap.CreateImageryWithLabels());

            // Create a surface for elevation data.
            Surface surface = new Surface();
            surface.ElevationSources.Add(new ArcGISTiledElevationSource(_elevationUri));

            // Add the surface to the scene.
            myScene.BaseSurface = surface;

            // Create a graphics overlay for the scene.
            GraphicsOverlay sceneGraphicsOverlay = new GraphicsOverlay()
            {
                SceneProperties = new LayerSceneProperties(SurfacePlacement.Absolute)
            };
            _mySceneView.GraphicsOverlays.Add(sceneGraphicsOverlay);

            // Location at the crater.
            MapPoint craterLocation = new MapPoint(-109.929589, 38.437304, 1700, SpatialReferences.Wgs84);

            // Create the plane symbol and make it 10x larger (to be the right size relative to the scene).
            ModelSceneSymbol planeSymbol;
            try
            {
                planeSymbol = await ModelSceneSymbol.CreateAsync(_modelUri, 10.0);
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
                CreateErrorDialog("Loading plane model failed. Sample failed to initialize.");
                return;
            }

            // Create a graphic using the plane symbol.
            Graphic planeGraphic = new Graphic(new MapPoint(craterLocation.X, craterLocation.Y, 5000.0, SpatialReferences.Wgs84), planeSymbol);
            sceneGraphicsOverlay.Graphics.Add(planeGraphic);

            // Instantiate a new camera controller which orbits a geo element.
            _orbitPlaneCameraController = new OrbitGeoElementCameraController(planeGraphic, 300.0)
            {
                CameraPitchOffset = 30,
                CameraHeadingOffset = 150
            };

            // Instantiate a new camera controller which orbits a location.
            _orbitCraterCameraController = new OrbitLocationCameraController(craterLocation, 6000.0)
            {
                CameraPitchOffset = 3,
                CameraHeadingOffset = 150
            };

            // Set the starting camera controller.
            _mySceneView.CameraController = _orbitPlaneCameraController;

            // Add the scene to the view.
            _mySceneView.Scene = myScene;
        }

        private void ChangeCameraController(string camera)
        {
            switch (camera)
            {
                case "Orbit camera around plane":
                    // Switch to the plane camera controller.
                    _mySceneView.CameraController = _orbitPlaneCameraController;
                    break;

                case "Orbit camera around crater":
                    // Switch to the crater camera controller.
                    _mySceneView.CameraController = _orbitCraterCameraController;
                    break;

                case "Free pan around the globe":
                    // Switch to a globe camera controller, which is free pan.
                    _mySceneView.CameraController = _globeCameraController;
                    break;
            }
        }

        private void CreateLayout()
        {
            // Load the layout for the sample from the .axml file.
            SetContentView(Resource.Layout.ChooseCameraController);

            // Update control references to point to the controls defined in the layout.
            _mySceneView = FindViewById<SceneView>(Resource.Id.SceneView);
            RadioButton planeButton = FindViewById<RadioButton>(Resource.Id.PlaneButton);
            RadioButton craterButton = FindViewById<RadioButton>(Resource.Id.CraterButton);
            RadioButton freeButton = FindViewById<RadioButton>(Resource.Id.FreeButton);

            // Select the first option.
            planeButton.Checked = true;

            // Add listeners to all of the buttons.
            planeButton.Click += Setting_Checked;
            craterButton.Click += Setting_Checked;
            freeButton.Click += Setting_Checked;
        }

        private void Setting_Checked(object sender, EventArgs e)
        {
            ChangeCameraController(((RadioButton)sender).Text);
        }

        private void CreateErrorDialog(string message)
        {
            // Create a dialog to show message to user.
            AlertDialog alert = new AlertDialog.Builder(this).Create();
            alert.SetMessage(message);
            alert.Show();
        }
    }
}
Examples

Xamarin Forms Android

Example Name: ChooseCameraController

Control the behavior of the camera in a scene.

Code example screen shot.

C#
// 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.Samples.Managers;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using Esri.ArcGISRuntime.Symbology;
using Esri.ArcGISRuntime.UI;
using System;
using System.Threading.Tasks;
using Xamarin.Forms;

namespace ArcGISRuntimeXamarin.Samples.ChooseCameraController
{
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        "Choose camera controller",
        "MapView",
        "Control the behavior of the camera in a scene.",
        "Select a radio button to change the camera controller.")]
    [ArcGISRuntime.Samples.Shared.Attributes.OfflineData("681d6f7694644709a7c830ec57a2d72b")]
    public partial class ChooseCameraController : ContentPage
    {
        // Path for elevation data.
        private readonly Uri _elevationUri = new Uri("http://elevation3d.arcgis.com/arcgis/rest/services/WorldElevation3D/Terrain3D/ImageServer");

        // Path for the plane model.
        private readonly Uri _modelUri = new Uri(DataManager.GetDataFolder("681d6f7694644709a7c830ec57a2d72b", "Bristol.dae"));

        // Geo element camera controller.
        private OrbitGeoElementCameraController _orbitPlaneCameraController;

        // Location camera controller.
        private OrbitLocationCameraController _orbitCraterCameraController;

        // Globe camera controller.
        private readonly GlobeCameraController _globeCameraController = new GlobeCameraController();

        // Text labels for the user interface.
        private readonly string[] _controllers = { "Orbit camera around plane", "Orbit camera around crater", "Free pan around the globe" };

        public ChooseCameraController()
        {
            InitializeComponent();
            Initialize();
        }

        private async void Initialize()
        {
            // Create a scene.
            Scene myScene = new Scene(Basemap.CreateImageryWithLabels());

            // Create a surface for elevation data.
            Surface surface = new Surface();
            surface.ElevationSources.Add(new ArcGISTiledElevationSource(_elevationUri));

            // Add the surface to the scene.
            myScene.BaseSurface = surface;

            // Create a graphics overlay for the scene.
            GraphicsOverlay sceneGraphicsOverlay = new GraphicsOverlay()
            {
                SceneProperties = new LayerSceneProperties(SurfacePlacement.Absolute)
            };
            MySceneView.GraphicsOverlays.Add(sceneGraphicsOverlay);

            // Location at the crater.
            MapPoint craterLocation = new MapPoint(-109.929589, 38.437304, 1700, SpatialReferences.Wgs84);

            // Create the plane symbol and make it 10x larger (to be the right size relative to the scene).
            ModelSceneSymbol planeSymbol;
            try
            {
                planeSymbol = await ModelSceneSymbol.CreateAsync(_modelUri, 10.0);
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.Message);
                await Application.Current.MainPage.DisplayAlert("Error", "Loading plane model failed. Sample failed to initialize.", "OK");
                return;
            }

            // Create a graphic using the plane symbol.
            Graphic planeGraphic = new Graphic(new MapPoint(craterLocation.X, craterLocation.Y, 5000.0, SpatialReferences.Wgs84), planeSymbol);
            sceneGraphicsOverlay.Graphics.Add(planeGraphic);

            // Instantiate a new camera controller which orbits a geo element.
            _orbitPlaneCameraController = new OrbitGeoElementCameraController(planeGraphic, 300.0)
            {
                CameraPitchOffset = 30,
                CameraHeadingOffset = 150
            };

            // Instantiate a new camera controller which orbits a location.
            _orbitCraterCameraController = new OrbitLocationCameraController(craterLocation, 6000.0)
            {
                CameraPitchOffset = 3,
                CameraHeadingOffset = 150
            };

            // Set the starting camera controller.
            MySceneView.CameraController = _orbitPlaneCameraController;

            // Add the scene to the view.
            MySceneView.Scene = myScene;
        }

        private void ChangeCameraController(string cameraControllerLabel)
        {
            switch (cameraControllerLabel)
            {
                case "Orbit camera around plane":
                    // Switch to the plane camera controller.
                    MySceneView.CameraController = _orbitPlaneCameraController;
                    break;

                case "Orbit camera around crater":
                    // Switch to the crater camera controller.
                    MySceneView.CameraController = _orbitCraterCameraController;
                    break;

                case "Free pan around the globe":
                    // Switch to a globe camera controller, which is free pan.
                    MySceneView.CameraController = _globeCameraController;
                    break;
            }
        }
        private async void OnButtonClicked(object sender, EventArgs e)
        {
            try
            {
                // Show sheet and get the camera controller from the selection.
                string selectedCamera =
                    await ((Page)Parent).DisplayActionSheet("Select camera controller", "Cancel", null, _controllers);

                // If selected cancel then do nothing.
                if (selectedCamera == "Cancel") return;

                // Change the camera controller to the selected item.
                ChangeCameraController(selectedCamera);
            }
            catch (Exception ex)
            {
                await Application.Current.MainPage.DisplayAlert("Error", ex.ToString(), "OK");
            }
        }
    }
}
XAML
<ContentPage xmlns="http://xamarin.com/schemas/2014/forms"
             xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml"
             xmlns:esriUI="clr-namespace:Esri.ArcGISRuntime.Xamarin.Forms;assembly=Esri.ArcGISRuntime.Xamarin.Forms"
             xmlns:mapping="clr-namespace:Esri.ArcGISRuntime.Mapping;assembly=Esri.ArcGISRuntime"
             x:Class="ArcGISRuntimeXamarin.Samples.ChooseCameraController.ChooseCameraController">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="*" />
            <RowDefinition Height="auto" />
        </Grid.RowDefinitions>
        <esriUI:SceneView x:Name="MySceneView" Grid.Row="0" />
        <Button x:Name="ControllersButton" Grid.Row="1"
                Text="Change Camera Controller"
                Clicked="OnButtonClicked">
        </Button>
    </Grid>
</ContentPage>
See Also
Additional Examples
Hyperlink to ExampleDescription
ChooseCameraControllerControl the behavior of the camera in a scene.