How many levels a contour layer draws.
A level drawn as several islands arrives as several curves carrying one number, and counts once. A curve that declares no level counts as a level of its own, since nothing says it shares one with another curve.
The layer's curves
The number of levels
How many levels a contour layer draws.
A level drawn as several islands arrives as several curves carrying one number, and counts once. A curve that declares no level counts as a level of its own, since nothing says it shares one with another curve.