RhinoCommon API
ConeAngleInRadians Method |
Computes the angle (in radians) between the axis and the
side of the cone.
The angle and the height have the same sign.
Namespace: Rhino.Geometry
Assembly: RhinoCommon (in RhinoCommon.dll)

Return Value
Type: DoubleMath.Atan(Radius / Height) if the height is not 0; 0 if the radius is 0; Math.PI otherwise.

Rhino for Mac
Supported in: 5.4Rhino for Windows
Supported in: 6.14