private void Initialize()
{
try
{
// Define the Uri for the service feature table (US state polygons)
Uri myServiceFeatureTable_Uri = new Uri("https://sampleserver6.arcgisonline.com/arcgis/rest/services/Census/MapServer/3");
// Create a new service feature table from the Uri
ServiceFeatureTable myServiceFeatureTable = new ServiceFeatureTable(myServiceFeatureTable_Uri);
// Create a new feature layer from the service feature table
FeatureLayer myFeatureLayer = new FeatureLayer(myServiceFeatureTable)
{
// Set the rendering mode of the feature layer to be dynamic (needed for extrusion to work)
RenderingMode = FeatureRenderingMode.Dynamic
};
// Create a new simple line symbol for the feature layer
SimpleLineSymbol mySimpleLineSymbol = new SimpleLineSymbol(SimpleLineSymbolStyle.Solid, Color.Black, 1);
// Create a new simple fill symbol for the feature layer
SimpleFillSymbol mysimpleFillSymbol = new SimpleFillSymbol(SimpleFillSymbolStyle.Solid, Color.Blue, mySimpleLineSymbol);
// Create a new simple renderer for the feature layer
SimpleRenderer mySimpleRenderer = new SimpleRenderer(mysimpleFillSymbol);
// Get the scene properties from the simple renderer
RendererSceneProperties myRendererSceneProperties = mySimpleRenderer.SceneProperties;
// Set the extrusion mode for the scene properties
myRendererSceneProperties.ExtrusionMode = ExtrusionMode.AbsoluteHeight;
// Set the initial extrusion expression
myRendererSceneProperties.ExtrusionExpression = "[POP2007] / 10";
// Set the feature layer's renderer to the define simple renderer
myFeatureLayer.Renderer = mySimpleRenderer;
// Create a new scene with the topographic backdrop
Scene myScene = new Scene(BasemapType.Topographic);
// Set the scene view's scene to the newly create one
_mySceneView.Scene = myScene;
// Add the feature layer to the scene's operational layer collection
myScene.OperationalLayers.Add(myFeatureLayer);
// Create a new map point to define where to look on the scene view
MapPoint myMapPoint = new MapPoint(-10974490, 4814376, 0, SpatialReferences.WebMercator);
// Create a new orbit location camera controller using the map point and defined distance
OrbitLocationCameraController myOrbitLocationCameraController = new OrbitLocationCameraController(myMapPoint, 20000000);
// Set the scene view's camera controller to the orbit location camera controller
_mySceneView.CameraController = myOrbitLocationCameraController;
}
catch (Exception ex)
{
// Something went wrong, display the error
AlertDialog.Builder alert = new AlertDialog.Builder(this);
alert.SetTitle("Error");
alert.SetMessage(ex.Message);
alert.Show();
}
}
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;
}
