I work with Esri Map Wpf control to display maps and I load TPK and LPK files to display different layers.
I want to enable user to click on the map and display a Viewshed analysis for this location with some radius. It was easy to made it while working against Esri service online but my app have to support offline too.
I understand I have to get some DEM files. But I don't know how to use ESRI code (C#) to use those files and calculate it on run time.