Help for GETLOC

PURPOSE

"getloc" is a special purpose program used during geometric calibration
of vidicon and CCD cameras.  It is used to extract a subarea from a
tiepoint file containing theodolite measurements of grid intersections.  

EXECUTION

	getloc INP=GRID OUT=OGRID SR=r SC=c NR=n NC=m 
   where...
	GRID are the input theodolite measurements,
	OGRID are the output extracted subarea,
	and (r,c,n,m) specify the starting row, starting column, number
	of rows and number of columns of the area to be extracted.

   The input and output grid locations are in the same format as output
   by the programs "gridloca" and "gridlocb" and input to the program "locus".

   The input grid is a fixed 27x27 array of grid intersections.

 WRITTEN BY:             Gary Yagi                   19 Sep 1984

 COGNIZANT PROGRAMMER:   Gary Yagi

 REVISIONS:
   SEPT. 1984:  ...SP...  converted to Vax.
   APRIL 1986:  ...SP...  Converted to Vicar2
   OCT.  1994:  ...AS...  (CRI) Made portable for UNIX