----- file created by makedoc on: Tue Apr  1 15:29:58 2008

----- Documentation for /scisoft/xop2.3/extensions/shadowvui/src/vui/xsh_waviness.pro -----

 This application creates a file containing a mesh surface
 with slope error. 

 Reference: 
 M. Sánchez del Río and A. Marcelli
 Waviness effects in ray-tracing of "real" optical surfaces
 Nuclear Instruments and Methods A 319 (1992) 170-177

 http://dx.doi.org/10.1016/0168-9002(92)90550-N



 Author: M. Sanchez del Rio
 Modification history:
    2006, written in IDL based on Fortran code
    2007-11-07 srio@esrf.eu added doc. Added PSD. Debugged. 



