function [RotationMatrix,ColVector] = zGetGlobalMatrix(SurfaceNumber)
% zGetGlobalMatrix - Requests global matrix transform for a lens surface.
%
% Usage : [RotationMatrix,ColVector] = zGetGlobalMatrix(SurfaceNumber)
%
% Returns the matrix required to convert any local coordinates (such as from a ray trace) into global
% coordinates. For details on the global coordinate matrix, see the section 揋lobal Coordinate Reference Surface