I know the question might seem farfetched given that the map is 2d. But I essentially want to project items-aircraft-above the map and I would like their altitude to be vaguely 'realistic' in terms of map size etc. The whole thing is 3D so it is possible to see the altitude.
I have the altitude in feet.
Is it simply a case of world diameter / image width = number of feet represented in a pixel. altitude in feet / number of feet represented in a pixe
I get the feeling that would be too simple.