I have been trying to find the answer to what should be a simple question.
I recently imported terrain from Google Earth for a particular site in the UK. Part of the terrain was above the XY plane and part below. If I didn’t know better, I would have assumed the base plane (XY where Z=0) would be sea level. But I know the site is actually about 80m above sea level.
So, how do you tell the height of the base plane in imported terrain?