The perspective-imagery extension recommends using the view extension, but that doesn't work well for some perspective imagery in that the off-nadir angle (which is essentially a way to represent elevation angle) is limited to the range 0-90 degrees.
If the off-nadir angle could be extended to to 180 degrees, it would be able to represent the case where the camera is pointed slightly (or very) up.
As an alternative, a more natural representation would be an elevation angle from camera local level, where positive is above the local level and negative is below. This would be redundant with off_nadir, in that 30 degrees off nadir is equally -60 degrees of elevation angle.
Any preferences for either alternative?
The perspective-imagery extension recommends using the view extension, but that doesn't work well for some perspective imagery in that the off-nadir angle (which is essentially a way to represent elevation angle) is limited to the range 0-90 degrees.
If the off-nadir angle could be extended to to 180 degrees, it would be able to represent the case where the camera is pointed slightly (or very) up.
As an alternative, a more natural representation would be an elevation angle from camera local level, where positive is above the local level and negative is below. This would be redundant with
off_nadir, in that 30 degrees off nadir is equally -60 degrees of elevation angle.Any preferences for either alternative?