;++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
;
;*NAME:    
;
;	pro cube_viewer
;
;*VERSION:
;
;	$Id$
;
;*CATEGORY:
;	
;	P3d Display
;				
;*CALLING SEQUENCE:
;
;	cube_viewer,array,spx=spx,spy=spy,spnull=spnull,hdr=hdr
;*INPUT:
;
;	array:      Input   Array of Spectra
;
;*OUTPUT:
;
;*PARAMETERS:
;
;*KEYWORDS:
;
;	spx:     #Spatial Elements in the x-direction (Default: 16)
;	spy:     #Spatial Elements in the y-direction (Default: 16)
;	spnull:  Spectra Number of the First Spatial Element (Default: 0)
;	hdr:     Fits Header (used for wavelength assignment)
;       colcuts: 2-element vector giving the lower and upper cutlevel for setting the image display colours
;
;*CALLED FUNCTIONS:
;
;*CALLED PROCEDURES:
;
;	tele	telescl
;
;*PURPOSE:
;
;	cube_viewer is a widget based display tool for the 
;	inspection of 3D data. It is a similar program as the older 
;	not widget based <monolook>. The usage of cube_viewer is more
;	comfortable but some nice tools form <monolook> like a 
;	sky subtraction algorithm are still missing.
;
;	The display area  is divided into 3 sections:
;
;	upper:  display of the stacked spectra image
;	middle: display of monocromatic images
;	lower:  plot of spectra of certain spatial elements
;
;	The tool allows to interactively select monochromatic images
;	and the preceeding selection of spectra via mousclick on 
;	spatial pixels of the monocromatic image. 
;	You can also display the spectrum of the sum of arbitrary pixels.
;
;*MODIFICATION HISTORY:
;
;	TBE: 02/12/2002 - VERSION 1.0	initial programming   
;   
;          
;*AUTHORS:
;
;	TBE		Thomas Becker	Astrophysikalisches Institut Potsdam
;					An der Sternwarte 16
;					D-14481 Potsdam
;                                       email: tbecker@aip.de
;					Tel. (049) 331/7499 - 414
;
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