GDPOINT outputs values of any scalar gridded data calculation at a 
       specified point.  Multiple times are allowed.


INPUT PARAMETERS
 
    GDFILE    *Grid file
    GDATTIM   *Grid date/time
    GLEVEL    *Grid level
    GVCORD    *Grid vertical coordinate
    SCALE     *Scalar scale
    GFUNC     *Scalar grid
    GPOINT    *Grid point
 
 
PROGRAM DESCRIPTION

    Produces text output of any scalar field computed using the 
    GEMPAK grid diagnostic functions for a specified point.  
    Multiple times are allowed, and output together.
    
    GPOINT specifies the location for the values.  It may be
    enterred as a latitude and longitude seperated with a semicolon,
    as a station character identifier or station number, or as a
    set of x and y grid points seperated with a semicolon and
    preceded with an @.  
    
    A list of times may be given in GDATTIM, or specifying ALL
    will produce output for all times.  Output is printed on
    a seperate line for each date/time using a XXXXXX.XXXXX format.
    Values can be scaled by the factor of 10 specified in SCALE
    so that reasonable values are output.
    
 
EXAMPLES
 
    1.  Output the 500mb height above Missoula MT at the 24-hour
        forecast time:
        
	GDFILE	 =  97032512_eta.gem
	GDATTIM	 =  f24
	GLEVEL	 =  500
	GVCORD	 =  pres
	SCALE	 =  0
	GFUNC	 =  hght
	GPOINT   =  mso
	
	output:
	
	GPOINT: mso
	GVCORD: pres
	GLEVEL: 500
	GFUNC : hght
	SCALE : 0
	     970325/1200F024 :   5642.92578

    2.  Output the 1000-500mb thickness at latitude/longitude
        45N 110W for all forecast times.  Scale by 10**-1.
        
	GDFILE	 =  97032512_eta.gem
	GDATTIM	 =  all
	GLEVEL	 =  850
	GVCORD	 =  pres
	SCALE	 =  -1   
	GFUNC	 =  sub(hght@500,hght@1000)
	GPOINT   =  45;-110

	output:
	
	GPOINT: 45;-110
	GVCORD: pres
	GLEVEL: 850
	GFUNC : sub(hght@500,hght@1000)
	SCALE : -1
	     970325/1200F000 :   543.97461
	     970325/1200F006 :   548.53955
	     970325/1200F012 :   554.02820
	     970325/1200F018 :   552.50134
	     970325/1200F024 :   551.03271
	     970325/1200F030 :   553.88477
	     970325/1200F036 :   555.94928
	     970325/1200F042 :   550.64130
	     970325/1200F048 :   545.61694
	     

ERROR MESSAGES
 
    None