To print the documentation use the printdoc batchfile by typing printdoc.  This
will implement the command <copy HPGLUTIL.DOC lpt1>.  It is assumed that your
printer is attached to lpt1.  Otherwise read HPGLUTIL.DOC into a word 
processing program as an ASCII file, and reformat it as you like before 
printing.


                         U.S. DEPARTMENT OF THE INTERIOR
                              U.S. GEOLOGICAL SURVEY

                  HPGLUTIL, A COMPUTER PROGRAM FOR PROCESSING
                HEWLETT-PACKARD GRAPHICS LANGUAGE (HPGL) FILES
                     AND REGISTERING PLOTS TO BASE MAPS

                                        by


                         Van S. Williams and Gary I. Selner


                              Open-file Report 94-284

                          Last revision October 4, 1994


                                       SUMMARY

               HPGLUTIL   (version  1.0)  is  a  program  for  IBM  PC  and
          compatible  microcomputers that  will read  HPGL plotter  command
          files for a drawing  and transmit the  commands  to various types
          of output  devices.  It  will optionally rescale the  drawing and
          transform  the coordinates.   A  drawing may  be registered  to a
          basemap mounted  in the  plotter by using  a digitizing  sight to
          identify  three registration points marking the upper left, lower
          left, and lower  right corners of the drawing.   The program will
          also change  the  size  of  the plot  without  registration,  for
          example,   a  D-size  plot  may  be  reproduced  on  a  page-size
          laser-jet.  Pen color, width, and gray tone can be set for output
          to some raster devices.  
          Requirements:  IBM-PC (or compatible)  running MS-DOS version 2.1
          or later with at least 512K bytes of memory, and an output device
          such  as a  plotter that  supports  the Hewlett-Packard  Graphics
          Language.  If it is desired to register the plot to  a preprinted
          paper  or film  base, the  plotter  must have  the capability  of
          digitizing locations on the base.  
          Contents of the release disk:  The release disk for report OF 94-
          284 (DOS  DS HD  3 1/2  inch format)  contains all  of the  files
          necessary to  install and execute  the program.  In  addition, it
          contains examples  of HPGL files for  the user to examine  and to
          test  the  program.   A list  of  the files  on the  release disk
          follows:

           README.DOC    text file describing how to print documentation.
           HPGLUTIL.DOC  contents of this documentation.
           HPGLUTIL.EXE  program executable.
           GEOL.HPG      HPGL plot file of geologic quadrangle
           GEOLREG.HPR   HPGL plot file of registration points for GEOL.HPG
                         file 
           TOPO.HPG      HPGL plot file of scanned  topographic basemap for
                         GEOL.HPG file
           TOPOREG.HPR   HPGL plot file of registration points for TOPO.HPG
                         file 
           RULER.HPG     HPGL plot  file of ruler  suitable for calibrating
                         laserjet printers



          Although  this  program has  been  used  by the  U.S.  Geological
          Survey, no warranty (expressed or implied) is made by the authors
          or the U.S. Geological Survey  as to the accuracy and functioning
          of the program and related  program materials, nor shall the fact
          of  distribution   constitute   any   such   warranty,   and   no
          responsibility  is assumed  by  the  U.S.  Geological  Survey  in
          connection therewith.  Any use  of trade names is for descriptive
          purposes  only  and  does  not  imply  endorsement  by  the  U.S.
          Geological  Survey.   This  report  has  not  been  reviewed  for
          conformity with the U.S. Geological Survey editorial standards.

          Denver, Colorado