ViewshedGeoElement

Viewshed (GeoElement)

Analyze the viewshed for a GeoElement in a scene.

How to use the sample

Tap to set a destination for the vehicle. The vehicle will 'drive' towards the tapped location. The viewshed analysis will update as the tank moves.

How it works

1. Create and show the scene, with an elevation source and a buildings layer.
2. Add a model (the GeoElement) to represent the observer.
3. Create a GeoElementViewshed with configuration for the viewshed analysis.
4. Add the viewshed to an AnalysisOverlay and add the overlay to the scene.
5. Configure the SceneView CameraController to orbit the vehicle.

About the data

This sample shows a Johannesburg building layer from ArcGIS Online. The vehicle is a tank.

Relevant API

• ModelSceneSymbol
• GeoElementViewshed
• AnalysisOverlay
• OrbitGeoElementCameraController
• GeodeticDistanceResult & GeometryEngine.DistanceGeodetic - used to animate the vehicle.

Tags

Buildings, scene, model, 3D