Help for FIXLOC

PURPOSE:

 Fixloc is used to edit and list MARK-format data sets containing coordinate
 information. Examples of such data sets include grid location data sets as
 generated by gridlocb, gridgen, and interloc and reseau location data sets 
 as generated by resloc and reslocvo.

EXECUTION:

		fixloc INP OUT PARAMS

OPERATION:

 Fixloc reads the coordinates from the input file and acts upon them as
 specified by the parameters before writing them out in the same
 MARK-format (see program MARK).  The following edit operations are
 performed:

	CHANGE - replaces the value of the specified coordinate with
		 user-specified values.
	DUMMY -  replaces the value of the specified coordinate with
                 the values (-99.,-99.) (the 'missing' value).
	DELETE - eliminates the specified coordinate and renumbers the set.
	INSERT - adds the specified coordinate and values and renumbers 
  		 the set.

 The CHANGE operations are executed first, then the DUMMY operations
 (essentially shorthand versions of CHANGE), then the DELETE operations,
 and lastly the INSERT operations.   The DELETE and INSERT parameters
 cause an immediate renumbering of the tiepoints. If the 3rd coordinate is
 deleted, for example, then all coordinates following it are renumbered to fill
 in the gap.  This is a potential source for confusion and a serious defect in
 the program, since, e.g., DELETE=(6,50)  deletes the 6th and 51st points!

 The coordinates, with corrections (if any), are listed out unless
 the 'NOPRINT keyword is used.  An array format (see NC parameter) is used 
 unless a VO or VGR reseau data set is input, in which case, the program 
 prints out the standard reseau map.

 NOTE:  Although the output file is optional, the input is never modified.
        With no output file, the changes only occur in the printout.

ORIGINAL PROGRAMMER: Gary Yagi			29 November 1978

CURRENT COGNIZANT PROGRAMMER: S. Pohorsky

REVISIONS:
   7-97    ...RRD... merged CCA's additions into ported version
   4-94    ...CRI... MSTP S/W CONVERSION (VICAR PORTING)
   4-94    ...CCA... added reading of grid nc,nr from label
  12-93    ...CCA... added DUMMY and NOPRINT parameters, some help
  04-86    ...SXP... revised parameter processing using XVPARM.
  11-78    ...GMY... original release