horizontalAngle property

double get horizontalAngle

The horizontal angle of the observer's field of vision.

Visible and non-visible areas are determined for an area defined by an observer location, horizontal and vertical view angles, and a minimum/maximum distance range. These properties define a frustum (3D solid) inside of which visibility is calculated. The horizontal angle must be greater than zero to define a valid frustum and is constrained to a maximum of 360 degrees.

set horizontalAngle (double value)