BoxDiagrams.DiagramGestureAnalyzer.AngleError C# (CSharp) Метод

		static double AngleError(VectorT vec, int angleMod8)
		{
			double dif = vec.Angle() - angleMod8 * (Math.PI / 4);
			dif = MathEx.Mod(dif, 2 * Math.PI);
			if (dif > Math.PI)
				dif = 2 * Math.PI - dif;
			return dif;
		}