private void showViewshed()
{
// Create a viewshed analysis for a passenger in the airplane
GeoElementViewshed geoViewshed = new GeoElementViewshed(
geoElement: planeGraphic,
horizontalAngle: 90,
verticalAngle: 120,
minDistance: 5,
maxDistance: 5000,
headingOffset: -90,
pitchOffset: 0.0)
{
OffsetX = -10,
OffsetY = 17,
OffsetZ = 20
};
// Create an overlay for the analysis
AnalysisOverlay overlay = new AnalysisOverlay();
overlay.Analyses.Add(geoViewshed);
// Show the analysis in the scene
arSceneView.AnalysisOverlays.Add(overlay);
}
private async void Initialize()
{
// Create the scene with an imagery basemap.
MySceneView.Scene = new Scene(Basemap.CreateImagery());
// Add the elevation surface.
ArcGISTiledElevationSource tiledElevationSource = new ArcGISTiledElevationSource(_elevationUri);
Surface baseSurface = new Surface
{
ElevationSources = { tiledElevationSource }
};
MySceneView.Scene.BaseSurface = baseSurface;
// Add buildings.
ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(_buildingsUri);
MySceneView.Scene.OperationalLayers.Add(sceneLayer);
await sceneLayer.LoadAsync();
// Configure the graphics overlay for the tank and add the overlay to the SceneView.
_tankOverlay.SceneProperties.SurfacePlacement = SurfacePlacement.Relative;
MySceneView.GraphicsOverlays.Add(_tankOverlay);
// Configure the heading expression for the tank; this will allow the
// viewshed to update automatically based on the tank's position.
SimpleRenderer renderer3D = new SimpleRenderer();
renderer3D.SceneProperties.HeadingExpression = "[HEADING]";
_tankOverlay.Renderer = renderer3D;
try
{
// Create the tank graphic - get the model path.
string modelPath = GetModelPath();
// - Create the symbol and make it 10x larger (to be the right size relative to the scene).
ModelSceneSymbol tankSymbol = await ModelSceneSymbol.CreateAsync(new Uri(modelPath), 10);
// - Adjust the position.
tankSymbol.Heading = 90;
// - The tank will be positioned relative to the scene surface by its bottom.
// This ensures that the tank is on the ground rather than partially under it.
tankSymbol.AnchorPosition = SceneSymbolAnchorPosition.Bottom;
// - Create the graphic.
_tank = new Graphic(new MapPoint(28.047199, -26.189105, SpatialReferences.Wgs84), tankSymbol);
// - Update the heading.
_tank.Attributes["HEADING"] = 0.0;
// - Add the graphic to the overlay.
_tankOverlay.Graphics.Add(_tank);
// Create a viewshed for the tank.
GeoElementViewshed geoViewshed = new GeoElementViewshed(
geoElement: _tank,
horizontalAngle: 90.0,
verticalAngle: 40.0,
minDistance: 0.1,
maxDistance: 250.0,
headingOffset: 0.0,
pitchOffset: 0.0)
{
// Offset viewshed observer location to top of tank.
OffsetZ = 3.0
};
// Create the analysis overlay and add to the scene.
AnalysisOverlay overlay = new AnalysisOverlay();
overlay.Analyses.Add(geoViewshed);
MySceneView.AnalysisOverlays.Add(overlay);
// Create a camera controller to orbit the tank.
OrbitGeoElementCameraController cameraController = new OrbitGeoElementCameraController(_tank, 200.0)
{
CameraPitchOffset = 45.0
};
// - Apply the camera controller to the SceneView.
MySceneView.CameraController = cameraController;
// Create a timer; this will enable animating the tank.
Device.StartTimer(new TimeSpan(0, 0, 0, 0, 60), () =>
{
// Move the tank every time the timer elapses.
AnimateTank();
// Keep the timer running.
return(true);
});
// Allow the user to click to define a new destination.
MySceneView.GeoViewTapped += (sender, args) => { _tankEndPoint = args.Location; };
}
catch (Exception e)
{
await Application.Current.MainPage.DisplayAlert("Error", e.ToString(), "OK");
}
}
private async Task Initialize()
{
// Create the scene with an imagery basemap.
_mySceneView.Scene = new Scene(Basemap.CreateImagery());
// Add the elevation surface.
ArcGISTiledElevationSource tiledElevationSource = new ArcGISTiledElevationSource(_elevationUri);
Surface baseSurface = new Surface
{
ElevationSources = { tiledElevationSource }
};
_mySceneView.Scene.BaseSurface = baseSurface;
// Add buildings.
_mySceneView.Scene.OperationalLayers.Add(new ArcGISSceneLayer(_buildingsUri));
// Configure the graphics overlay for the tank and add the overlay to the SceneView.
_tankOverlay.SceneProperties.SurfacePlacement = SurfacePlacement.Relative;
_mySceneView.GraphicsOverlays.Add(_tankOverlay);
// Configure the heading expression for the tank; this will allow the
// viewshed to update automatically based on the tank's position.
SimpleRenderer renderer3D = new SimpleRenderer();
renderer3D.SceneProperties.HeadingExpression = "[HEADING]";
_tankOverlay.Renderer = renderer3D;
// Create the tank graphic - get the model path.
string modelPath = GetModelPath();
// - Create the symbol and make it 10x larger (to be the right size relative to the scene).
ModelSceneSymbol tankSymbol = await ModelSceneSymbol.CreateAsync(new Uri(modelPath), 10);
// - Adjust the position.
tankSymbol.Heading = 90;
// - The tank will be positioned relative to the scene surface by its bottom
// This ensures that the tank is on the ground rather than partially under it.
tankSymbol.AnchorPosition = SceneSymbolAnchorPosition.Bottom;
// - Create the graphic.
_tank = new Graphic(new MapPoint(-4.506390, 48.385624, SpatialReferences.Wgs84), tankSymbol);
// - Update the heading.
_tank.Attributes["HEADING"] = 0.0;
// - Add the graphic to the overlay.
_tankOverlay.Graphics.Add(_tank);
// Create a viewshed for the tank.
GeoElementViewshed geoViewshed = new GeoElementViewshed(
geoElement: _tank,
horizontalAngle: 90.0,
verticalAngle: 40.0,
minDistance: 0.1,
maxDistance: 250.0,
headingOffset: 0.0,
pitchOffset: 0.0)
{
// Offset viewshed observer location to top of tank.
OffsetZ = 3.0
};
// Create the analysis overlay and add to the scene.
AnalysisOverlay overlay = new AnalysisOverlay();
overlay.Analyses.Add(geoViewshed);
_mySceneView.AnalysisOverlays.Add(overlay);
// Create a camera controller to orbit the tank.
OrbitGeoElementCameraController cameraController = new OrbitGeoElementCameraController(_tank, 200.0)
{
CameraPitchOffset = 45.0
};
// - Apply the camera controller to the SceneView.
_mySceneView.CameraController = cameraController;
// Create a timer; this will enable animating the tank.
Timer animationTimer = new Timer(60)
{
Enabled = true,
AutoReset = true
};
// - Move the tank every time the timer expires.
animationTimer.Elapsed += (o, e) =>
{
AnimateTank();
};
// - Start the timer.
animationTimer.Start();
// Allow the user to click to define a new destination.
_mySceneView.GeoViewTapped += (sender, args) => { _tankEndPoint = args.Location; };
}
private async void Initialize()
{
// Create the scene with an imagery basemap.
_mySceneView.Scene = new Scene(Basemap.CreateImagery());
// Add the elevation surface.
ArcGISTiledElevationSource tiledElevationSource = new ArcGISTiledElevationSource(_elevationUri);
_mySceneView.Scene.BaseSurface = new Surface
{
ElevationSources = { tiledElevationSource }
};
// Add buildings.
ArcGISSceneLayer sceneLayer = new ArcGISSceneLayer(_buildingsUri);
_mySceneView.Scene.OperationalLayers.Add(sceneLayer);
// Configure the graphics overlay for the tank and add the overlay to the SceneView.
_tankOverlay.SceneProperties.SurfacePlacement = SurfacePlacement.Relative;
_mySceneView.GraphicsOverlays.Add(_tankOverlay);
// Configure the heading expression for the tank; this will allow the
// viewshed to update automatically based on the tank's position.
_tankOverlay.Renderer = new SimpleRenderer
{
SceneProperties = { HeadingExpression = "[HEADING]" }
};
try
{
// Create the tank graphic - get the model path.
string modelPath = DataManager.GetDataFolder("07d62a792ab6496d9b772a24efea45d0", "bradle.3ds");
// - Create the symbol and make it 10x larger (to be the right size relative to the scene).
ModelSceneSymbol tankSymbol = await ModelSceneSymbol.CreateAsync(new Uri(modelPath), 10);
// - Adjust the position.
tankSymbol.Heading = 90;
// - The tank will be positioned relative to the scene surface by its bottom.
// This ensures that the tank is on the ground rather than partially under it.
tankSymbol.AnchorPosition = SceneSymbolAnchorPosition.Bottom;
// - Create the graphic.
_tank = new Graphic(new MapPoint(28.047199, -26.189105, SpatialReferences.Wgs84), tankSymbol);
// - Update the heading.
_tank.Attributes["HEADING"] = 0.0;
// - Add the graphic to the overlay.
_tankOverlay.Graphics.Add(_tank);
// Create a viewshed for the tank.
GeoElementViewshed geoViewshed = new GeoElementViewshed(
geoElement: _tank,
horizontalAngle: 90.0,
verticalAngle: 40.0,
minDistance: 0.1,
maxDistance: 250.0,
headingOffset: 0.0,
pitchOffset: 0.0)
{
// Offset viewshed observer location to top of tank.
OffsetZ = 3.0
};
// Create the analysis overlay and add to the scene.
AnalysisOverlay overlay = new AnalysisOverlay();
overlay.Analyses.Add(geoViewshed);
_mySceneView.AnalysisOverlays.Add(overlay);
// Create and use a camera controller to orbit the tank.
_mySceneView.CameraController = new OrbitGeoElementCameraController(_tank, 200.0)
{
CameraPitchOffset = 45.0
};
// Create a timer; this will enable animating the tank.
_animationTimer = new Timer(60)
{
Enabled = true,
AutoReset = true
};
}
catch (Exception e)
{
new UIAlertView("Error", e.ToString(), (IUIAlertViewDelegate)null, "OK", null).Show();
}
}