title: Cesium- How to calculate highest point, lowest point, average altitude in a specified area around the click position?
body: <p>I have successfully computed the height of a location where user clicks in cesium but my next step is a bit complex. What i want to do is that when user clicks at some point on globe, at any zoom level, i want to calculate highest point, lowest point and, average altitude around click position (say a circular area of 1000 meters). How should I do it, any ideas?</p>