I am at an aircraft, I know Altitude & Angle to descend to airport.! How I know, using Elevation Points, I have no obstacles at the trajectory?

As the title says I want the "formula" that allow me to see if I have elevations at this descending linear trajectory. I know the angle (let's use the standard 3º ) and my altitude`

https://stackoverflow.com/questions/66717353/i-am-at-an-aircraft-i-know-altitude-angle-to-descend-to-airport-how-i-know March 20, 2021 at 09:06AM