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MPOST(1)										 MPOST(1)

       mpost, inimpost, virmpost - MetaPost, a system for drawing pictures

       mpost [options] [commands]

       This  manual page is not meant to be exhaustive.  The complete documentation for this ver-
       sion of TeX can be found in the info file or manual Web2C: A TeX implementation.

       MetaPost interprets the MetaPost language and produces PostScript pictures.  The  MetaPost
       language  is  similar to Knuth's Metafont with additional features for including tex(1) or
       troff(1) commands and accessing features of PostScript not found in Metafont.

       Like TeX and Metafont, MetaPost is normally used with a large body of precompiled  macros.
       This  version  of MetaPost looks at its command line to see what name it was called under.
       Both inimpost and virmpost are symlinks to the mpost executable.  When called as  inimpost
       (or  when the --ini option is given) it can be used to precompile macros into a .mem file.
       When called as virmpost it will use the plain mem.  When  called  under	any  other  name,
       MetaPost  will  use that name as the name of the mem to use.   For example, when called as
       mpost the mpost mem is used, which is identical to the plain mem.  Other mems  than  plain
       are rarely used.

       The commands given on the command line to the  program are passed to it as the first input
       line.  (But it is often easier to type extended arguments as the first input  line,  since
       UNIX  shells  tend  to  gobble  up or misinterpret MetaPost's favorite symbols, like semi-
       colons, unless you quote them.)	The first line should begin  with  a  filename,  a  \con-
       trolsequence, or a &memname.

       The  normal  usage  is  to  say mp figs to process the file figs.mp.  The basename of figs
       becomes the ``jobname'', and is used in forming output file names.  If no file  is  named,
       the jobname becomes mpout.  The default extension, .mp, can be overridden by specifying an
       extension explicitly.

       There is normally one output file for each picture generated, and  the  output  files  are
       named  jobname.nnn,  where  nnn is a number passed to the beginfig macro.  The output file
       name can also be jobname.ps if this number is negative.

       The output files can be used as figures in a TeX document by including
       in the TeX document.  Alternatively, one can \input epsf.tex and then use the macro
       to produce a box of the appropriate size containing the figure.

       btex TeX commands etex
	      This causes mp to generate a MetaPost picture expression that  corresponds  to  the
	      TeX  commands.  If the TeX commands generate more than one line of text, it must be
	      in a \vbox or a minipage environment.

       verbatimtex TeX commands etex
	      This is ignored by mp except that the TeX commands are  passed  on  to  TeX.   When
	      using  LaTeX instead of TeX the input file must start with a verbatimtex block that
	      gives the \documentstyle and \begin{document} commands.  You can use the `%&'  con-
	      struct in the first verbatimtex block to ensure that the correct TeX format is used
	      to process the commands.

       Since most TeX fonts have to be downloaded as bitmaps, the btex feature	works  best  when
       the  output  of	mp  is to be included in a TeX document so that dvips(1) can download the
       fonts.  For self-contained PostScript output that can be used directly or  included  in	a
       troff  document, start your MetaPost input file with the command prologues:=1 and stick to
       standard PostScript fonts.  TeX and MetaPost use the names in the third column of the file
       trfonts.map, which can be found in the directories with support files for MetaPost.

       MetaPost output can be included in a troff document via the -m pictures macro package.  In
       this case mp should be invoked with the -T flag so that the commands between btex and etex
       or  between verbatimtex and etex are interpreted as troff instead of TeX.  (This automati-
       cally sets prologues:=1 ).

       This version of MetaPost understands the following command line options.

       --mem mem
	      Use mem as the name of the mem to be used, instead of the name  by  which  MetaPost
	      was called or a %& line.

       --help Print help message and exit.

       --ini  Be inimpost, for dumping bases; this is implicitly true if the program is called as

       --interaction mode
	      Sets the interaction  mode.   The  mode  can  be	one  of  batchmode,  nonstopmode,
	      scrollmode,  and	errorstopmode.	The meaning of these modes is the same as that of
	      the corresponding commands.

       --kpathsea-debug bitmask
	      Sets path searching debugging flags according to the  bitmask.   See  the  Kpathsea
	      manual for details.

       --progname name
	      Pretend  to  be  program	name.	This  affects both the format used and the search

       -T     Produce TROFF output.

       --translate-file tcxname
	      Use the tcxname translation table.

	      As -T.

	      Print version information and exit.

       See the Kpathsearch library documentation (the `Path specifications' node) for the details
       of  how	the  environment  variables are use when searching.  The kpsewhich utility can be
       used to query the values of the variables.

       If the environment variable TEXMFOUTPUT is set, MetaPost attempts to put its output  files
       in it, if they cannot be put in the current directory.

       Here is a list of the environment variables affect the behavior of mp:

	      Search path for input files.

	      Auxiliary search path for input files with .mf extensions.

	      Directory for various tables for handling included tex and troff.

	      The  name of a shell script that converts embedded typesetting commands to a
	      form that MetaPost understands.  Defaults: makempx for tex and troffmpx  for

       TEX    The  version of TeX - or LaTeX - to use when processing btex and verbatimtex
	      commands.  Default tex.  This version  of  MetaPost  allows  you	to  use  a
	      `%&format' line instead.

       TROFF  The  troff pipeline for btex and verbatimtex commands.  Default eqn -d\$\$ |

       MPEDIT A command template for invoking an editor.

       A .mem file is a binary file that permits fast loading of  macro  packages.   mpost
       reads  the  default plain.mem unless another .mem file is specified at the start of
       the first line with an & just before it.  There is also	an  that  simulates  plain
       Metafont  so  that  mpost  can read .mf fonts.  (Plain Metafont is described in The

       Experts can create .mem files be invoking inimpost  and	giving	macro  definitions
       followed by a dump command.

       The  MetaPost  language	is similar to Metafont, but the manual A User's Manual for
       MetaPost assumes no knowledge of Metafont.  MetaPost does not  have  bitmap  output
       commands or Metafont's online display mechanism.

	      Encoded text of MetaPost's messages.

       *.mem  Predigested MetaPost mem files.

	      The standard mem file.

	      The  Metafont-compatible mem file.  This is loaded when virmp is invoked via
	      a symbolic link as mfmp.

	      The standard MetaPost macros included in the original distribution.

	      Various tables for handling included tex and troff.

	      Table of corresponding font names for troff and PostScript.

	      Table of corresponding font names for tex and PostScript.

	      The source file for a few sample figures that are part of a  LaTeX  document
	      $TEXMFMAIN/doc/metapost/mpintro.tex  that describes the MetaPost system in a
	      little more detail.

       Donald E. Knuth, The Metafontbook (Volume C of Computers and Typesetting), Addison-
       Wesley, 1986, ISBN 0-201-13445-4.
       John D. Hobby, A User's Manual for MetaPost, CSTR 162, AT&T Bell Labs,
       John D. Hobby, Drawing Graphs with MetaPost, CSTR 164, AT&T Bell Labs,
       TUGboat (the journal of the TeX Users Group).

       tex(1), mf(1), dvips(1).

       MetaPost  was  designed by John D. Hobby, incorporating algorithms from Metafont by
       Donald E. Knuth.  It was originally  implemented  on  Unix,  incorporating  system-
       dependent  routines from web2c, while not relying on it exccept for the actual Web-
       to-C translator.

       Ulrik Vieth adapted MetaPost to take advantage of the advanced path searching  fea-
       tures  in  more recent versions of web2c and worked towards fully integrating Meta-
       Post into the canonical Unix TeX distribution.  He also updated and  extended  this
       manual page.

       Unlike TeX and Metafont, MetaPost originally didn't use any fancy logo.	John Hobby
       says he prefers the spelling ``MetaPost'', yet Don Knuth has updated  the  Metafont
       logo.mf	font  to be able to typeset a proper MetaPost logo similar to the Metafont
       logo.  Feel free to use whatever you think is more approporiate!

Web2C 7.3.1				  29 March 1999 				 MPOST(1)
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