----- file created by makedoc on: Thu Sep 11 15:03:11 2014
----- Documentation for /scisoft/xop2.4/extensions/shadowvui/src/lib/getrays.pro -----

 NAME:
	GETRAYS
 PURPOSE:
       equivalent to RBEAM in shadow library.
       reads fortran77 unformatted shadow image file
       and stored the output in an array of double precision
       real numbers.
 CATEGORY:
	General
 CALLING SEQUENCE:
	a= GETRAYS('shadow_file_name')
 INPUTS:
	shadow_file_name name of the shadow file
 OUTPUTS:
	an array with the SHADOW file
 KEYWORDS
	group = the widget id of the parent leader (used for positioning 
		error and question windows).
 COMMON BLOCKS:
	None.
 SIDE EFFECTS:
	None.
 RESTRICTIONS:
	None.
 PROCEDURE:
	Straightforward.
 MODIFICATION HISTORY:
       Original fron Steve Turner (CXrL)
       1-Sep-1992 M. Sanchez del Rio: Cosmetics
	1-Mar-1995 Jean-Francois Hochedez change procedure
	to increase lecture speed using ASSOC command
	7-Jun-95 MSR checks for file existence.
	97-11-12 sio@esrf.fr adapts for Windows95. Makes a uniform code for
		Unix and Windows.
	98/04/02 srio@esrf.fr checks and filters NaN values. Adds Group kw.
	2008/04/04 srio@esrf.eu swap endian for darwin...
	2010/08/23 srio@esrf.eu fixes a bug in Mac platforms
	2010/12/10 srio@esrf.eu fixes a bug in Mac platforms

