此方式可以用于一些放置类功能，如文字放置，通过观察视角决定文字的放置方位

        /// <summary>
        /// 取工作视图在工作部件的方位
        /// </summary>
        /// <returns></returns>
        private static NXOpen.Matrix3x3 AskWorkViewMatrix()
        {
            NXOpen.Part displayPart = theSession.Parts.Display;
            NXOpen.Matrix3x3 matrix = displayPart.Views.WorkView.Matrix;
            if (displayPart != theSession.Parts.Work)
            {
                NXOpen.Assemblies.Component component = theSession.Parts.WorkComponent;
                NXOpen.Point3d position;
                NXOpen.Matrix3x3 matrix1;
                component.GetPosition(out position, out matrix1);
                matrix1 = matrix1.Invert();
                matrix = matrix.Multiply3(matrix1);
            }
            return matrix;
        }