Animate a series of images with an image overlay.
Use case
An image overlay is useful for displaying fast and dynamic images; for example, rendering real-time sensor data captured from a drone. Each frame from the drone becomes a static image which is updated on the fly as the data is made available.
How to use the sample
The sample loads a map of the Southwestern United States. Tap the “Start” or “Stop” buttons to start or pause the radar animation. Tap the “Speed” button to select a playback speed to decide how quickly the animation plays. Move the slider to change the opacity of the image overlay.
How it works
- Create an
ImageOverlayand add it to theSceneView. - Set up a timer with an initial preferred frames per second of 60.
- Connect to the timeout signal from the timer.
- Create a new image frame every timeout and set it on the image overlay.
Relevant API
- ImageFrame
- ImageOverlay
- SceneView
About the data
These radar images were captured by the US National Weather Service (NWS). They highlight the Pacific Southwest sector which is made up of part the western United States and Mexico. For more information visit the NOAA Jetstream website. The archive for radar images can be downloaded from ArcGIS Online.
Additional information
The supported image formats are GeoTIFF, TIFF, JPEG, and PNG. ImageOverlay does not support the rich processing and rendering capabilities of a RasterLayer. Use Raster and RasterLayer for static image rendering, analysis, and persistence.
Tags
3d, animation, drone, dynamic, image frame, image overlay, real time, rendering