fBaseXtensions.Navigation.Navigation.NormalizeRadian C# (CSharp) Method

        public static float NormalizeRadian(float radian)
        {
            if (radian < 0)
            {
                double mod = -radian;
                mod %= Math.PI * 2d;
                mod = -mod + Math.PI * 2d;
                return (float)mod;
            }
            return (float)(radian % (Math.PI * 2d));
        }