Fractrace.Formulas.GetTransformWithoutProjection C# (CSharp) 메소드

        public Vec3 GetTransformWithoutProjection(double x, double y, double z)
        {
            Vec3 retVal = new Vec3();

            double a, f, re, im, xmi, ymi, zmi;

            try
            {

                if (mProjection != null)
                {
                    Vec3 projPoint = mProjection.ReverseTransform(new Vec3(x, y, z));
                    x = projPoint.X;
                    y = projPoint.Y;
                    z = projPoint.Z;
                }

                if (mTransforms.Count > 0)
                {
                    Vec3 vec = new Vec3(x, y, z);
                    foreach (Transform3D trans in mTransforms)
                    {
                        vec = trans.Transform(vec);
                    }
                    x = vec.X;
                    y = vec.Y;
                    z = vec.Z;
                }

                /* Einbeziehung des Winkels  */
                f = Math.PI / 180.0;
                /*xmi=(x1-x2)/2;ymi=(y1+y2)/2;zmi=(z1+z2)/2;*/
                // Drehung
                xmi = 0; ymi = 0; zmi = 0;
                x -= xmi; y -= ymi; z -= zmi;
                re = Math.Cos(mGlobalAngleZ * f); im = Math.Sin(mGlobalAngleZ * f);
                a = re * x - im * y;
                y = re * y + im * x;
                x = a;
                // Neigung
                re = Math.Cos(mGlobalAngleY * f); im = Math.Sin(mGlobalAngleY * f);
                a = re * z - im * x;
                x = re * x + im * z;
                z = a;
                // Kippen
                re = Math.Cos(mGlobalAngleX * f); im = Math.Sin(mGlobalAngleX * f);
                a = re * y - im * z;
                z = re * z + im * y;
                y = a;
                x += xmi; y += ymi; z += zmi;

                retVal.X = x;
                retVal.Y = y;
                retVal.Z = z;
            }
            catch (Exception ex)
            {
                System.Diagnostics.Debug.WriteLine(ex.ToString());
                retVal.X = x;
                retVal.Y = y;
                retVal.Z = z;
            }

            return retVal;
        }