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Camera Class

Used for defining the perspective of a scene. It is a visual snapshot of an observation of the Earth with various layers displayed in a SceneView.
Inheritance Hierarchy
SystemObject
  Esri.ArcGISRuntime.MappingCamera

Namespace:  Esri.ArcGISRuntime.Mapping
Assembly:  Esri.ArcGISRuntime (in Esri.ArcGISRuntime.dll) Version: 100.4.0.0
Syntax
public class Camera

The Camera type exposes the following members.

Constructors
  NameDescription
Public methodCode exampleCamera(MapPoint, Double, Double, Double)
Initializes a new instance of the Camera class.
Public methodCode exampleCamera(MapPoint, Double, Double, Double, Double)
Initializes a new instance of the Camera class.
Public methodCode exampleCamera(Double, Double, Double, Double, Double, Double)
Initializes a new instance of the Camera class.
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Properties
  NameDescription
Public propertyHeading
Gets the heading property which represents the angle from north in an ENU (East, North, Up Ground reference frames). Value ranges from 0 to 360 degrees. To set the heading use the
Public propertyCode exampleLocation
Gets the point in space where the camera is located. To set the point use the Camera.MoveTo Method or establish the location as part of one of the Camera Constructors.
Public propertyPitch
Gets the pitch property which represents the angle of pitch applied to the camera with rotation around Y-axis in an ENU (East, North, Up Ground reference frames). Value ranges from 0 to 180 degrees, where 0 is looking straight down (center of the earth) and 180 looking straight up (towards outer space).
Public propertyRoll
Gets the roll property which represents the angle of roll applied to the camera with rotation around X-axis in an ENU (East, North, Up Ground reference frames). Value ranges from 0 to 360 degrees, where 0 is horizontal.
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Methods
  NameDescription
Public methodCode exampleElevate
Returns a new Camera with applied elevation.
Public methodIsEqual
Compares two cameras for equality.
Public methodMoveForward
Returns a new Camera with updated position.
Public methodMoveTo
Returns a new Camera with the a new center position. Location is the point in space where the camera is located. Setting the location can be done using this Method or establish the location as part of one of the Camera Constructors.
Public methodMoveToward
Returns a new Camera centered at calculated location.
Public methodRotateAround
Returns a new Camera with changes centered at specified location.
Public methodRotateTo
Returns a new Camera with applied rotation.
Public methodZoomToward
Returns a new Camera centered at calculated location.
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Remarks

A Camera object can literally be thought of as a camera that one would look through to see a viewable extent and perspective of the Earth. Depending on how you hold the camera and how far away from the ground will determine what you can see. These positions of holding the camera represent the various Properties that you can set on the Camera object.

The Camera Class is immutable which means that you can not change its parameters once it is created. There are methods in the Camera class that would give you a new Camera with the adjusted parameters.

Examples

WPF

Example Name: FeatureLayerRenderingModeScene

This sample demonstrates how to use load settings to change the preferred rendering mode for a scene. Static rendering mode only redraws features periodically when a sceneview is navigating, while dynamic mode dynamically re-renders as the scene moves.

Code example screen shot.

C#
// Copyright 2018 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.Data;
using Esri.ArcGISRuntime.Geometry;
using Esri.ArcGISRuntime.Mapping;
using System;
using System.Windows;

namespace ArcGISRuntime.WPF.Samples.FeatureLayerRenderingModeScene
{
    [ArcGISRuntime.Samples.Shared.Attributes.Sample(
        "Feature layer rendering mode (Scene)",
        "Layers",
        "This sample demonstrates how to use load settings to change the preferred rendering mode for a scene. Static rendering mode only redraws features periodically when a sceneview is navigating, while dynamic mode dynamically re-renders as the scene moves.",
        "Press the 'Animated Zoom' button to trigger a zoom. Observe the differences between the two scenes.")]
    public partial class FeatureLayerRenderingModeScene
    {
        // Points for demonstrating zoom.
        private readonly MapPoint _zoomedOutPoint = new MapPoint(-118.37, 34.46, SpatialReferences.Wgs84);
        private readonly MapPoint _zoomedInPoint = new MapPoint(-118.45, 34.395, SpatialReferences.Wgs84);

        // Viewpoints for each zoom level.
        private Camera _zoomedOutCamera;
        private Camera _zoomedInCamera;

        // URI for the feature service.
        private string _featureService = "https://sampleserver6.arcgisonline.com/arcgis/rest/services/Energy/Geology/FeatureServer/";

        // Hold the current zoom state.
        private bool _zoomed;

        public FeatureLayerRenderingModeScene()
        {
            InitializeComponent();

            // Initialize the sample.
            Initialize();
        }

        private void Initialize()
        {
            // Initialize the cameras (viewpoints) with two points.
            _zoomedOutCamera = new Camera(_zoomedOutPoint, 42000, 0, 0, 0);
            _zoomedInCamera = new Camera(_zoomedInPoint, 2500, 90, 75, 0);

            // Create the scene for displaying the feature layer in static mode.
            Scene staticScene = new Scene
            {
                InitialViewpoint = new Viewpoint(_zoomedOutPoint, _zoomedOutCamera)
            };

            // Create the scene for displaying the feature layer in dynamic mode.
            Scene dynamicScene = new Scene
            {
                InitialViewpoint = new Viewpoint(_zoomedOutPoint, _zoomedOutCamera)
            };

            foreach (string identifier in new[] {"0", "9", "8"})
            {
                // Create the table.
                ServiceFeatureTable serviceTable = new ServiceFeatureTable(new Uri(_featureService + identifier));

                // Create and add the static layer.
                FeatureLayer staticLayer = new FeatureLayer(serviceTable)
                {
                    RenderingMode = FeatureRenderingMode.Static
                };
                staticScene.OperationalLayers.Add(staticLayer);

                // Create and add the dynamic layer.
                FeatureLayer dynamicLayer = (FeatureLayer)staticLayer.Clone();
                dynamicLayer.RenderingMode = FeatureRenderingMode.Dynamic;
                dynamicScene.OperationalLayers.Add(dynamicLayer);
            }

            // Add the scenes to the scene views.
            MyStaticSceneView.Scene = staticScene;
            MyDynamicSceneView.Scene = dynamicScene;
        }

        private void Button_Click(object sender, RoutedEventArgs e)
        {
            // Zoom out if zoomed.
            if (_zoomed)
            {
                MyStaticSceneView.SetViewpointCameraAsync(_zoomedOutCamera, new TimeSpan(0, 0, 5));
                MyDynamicSceneView.SetViewpointCameraAsync(_zoomedOutCamera, new TimeSpan(0, 0, 5));
            }
            else // Zoom in otherwise.
            {
                MyStaticSceneView.SetViewpointCameraAsync(_zoomedInCamera, new TimeSpan(0, 0, 5));
                MyDynamicSceneView.SetViewpointCameraAsync(_zoomedInCamera, new TimeSpan(0, 0, 5));
            }

            // Toggle zoom state.
            _zoomed = !_zoomed;
        }
    }
}
XAML
<UserControl x:Class="ArcGISRuntime.WPF.Samples.FeatureLayerRenderingModeScene.FeatureLayerRenderingModeScene"
             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
             xmlns:esri="http://schemas.esri.com/arcgis/runtime/2013">
    <Grid>
        <Grid.RowDefinitions>
            <RowDefinition Height="auto" />
            <RowDefinition Height="*" />
            <RowDefinition Height="auto" />
            <RowDefinition Height="*" />
        </Grid.RowDefinitions>
        <Grid.ColumnDefinitions>
            <ColumnDefinition Width="*" />
            <ColumnDefinition Width="*" />
        </Grid.ColumnDefinitions>
        <Label Content="Static mode:"
               Grid.Row="0" Grid.ColumnSpan="2"
               Foreground="Blue" FontWeight="SemiBold" />
        <esri:SceneView x:Name="MyStaticSceneView"
                        Grid.Row="1" Grid.Column="0" Grid.ColumnSpan="2" />
        <Label Content="Dynamic mode:"
               Grid.Row="2" Grid.Column="0"
               Foreground="Blue" FontWeight="SemiBold" />
        <Button Content="Animated zoom"
                Grid.Row="2" Grid.Column="1"
                Click="Button_Click" />
        <esri:SceneView x:Name="MyDynamicSceneView"
                        Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="2" />
    </Grid>
</UserControl>
See Also
Additional Examples
Hyperlink to ExampleDescription
DisplaySceneDemonstrates how to display a scene with an elevation data source. An elevation data source allows objects to be viewed in 3D, like this picture of Mt. Everest.
DistanceMeasurementThis sample demonstrates measuring 3D distances between two points in a scene. The distance measurement analysis allows you to add the same measuring experience found in ArcGIS Pro, City Engine, and the ArcGIS API for JavaScript to your app. You can set the unit system of measurement (metric or imperial) and have the units automatically switch to one appropriate for the current scale. The rendering is handled internally so they do not interfere with other analyses like viewsheds.
FeatureLayerRenderingModeSceneThis sample demonstrates how to use load settings to change the preferred rendering mode for a scene. Static rendering mode only redraws features periodically when a sceneview is navigating, while dynamic mode dynamically re-renders as the scene moves.
LineOfSightLocationThis sample demonstrates a `LocationLineOfSight` analysis that shows segments that are visible or obstructed along a line drawn from observer to target.
ListKmlContentsList the contents of a KML file.
SceneLayerSelectionIdentify GeoElements in a scene layer.
SceneLayerUrlDisplay an ArcGIS Scene layer from a service.
SurfacePlacementsThis sample demonstrates how to position graphics using different Surface Placements.
UseDistanceCompositeSymThis sample demonstrates how to create a `DistanceCompositeSceneSymbol` with unique marker symbols to display at various distances from the camera.
ViewshedCameraThis sample demonstrates how to create a `LocationViewshed` to display interactive viewshed results in the scene view. The viewshed observer is defined by the scene view camera to evaluate visible and obstructed areas of the scene from that location.
ViewshedLocationThis sample demonstrates the configurable properties of viewshed analysis, including frustum color, heading, pitch, distances, angles, and location.