Terrain point that is at the camera position point (see ICamera::position_point()).
Zoom-level. 0 is the whole world inscribed in a square of 256x256 logical pixels (see LogicalPixel)
The tilt angle of the direction of view vertically.
0 - nadir (look vertically down), the maximum value is 60 degrees.
The angle of rotation of the direction of view horizontally relative to the north direction. Counted clockwise, in degrees.