NAME

       lispmtopgm - convert a Lisp Machine bitmap file to PGM

SYNOPSIS

       lispmtopgm [lispmfile]

DESCRIPTION

       This program is part of Netpbm(1).

       listpmfile reads a Lisp Machine bitmap as input and produces a PGM image as output.

       This is the file format written by the tv:write-bit-array-file function on TI Explorer and
       Symbolics lisp machines.

       Multi-plane bitmaps on lisp machines are color; but the Lispm image file format  does  not
       include a color map, so we must treat it as a monochrome instead and produce PGM.  This is
       unfortunate.

OPTIONS

       There are no command line options defined specifically for lispmtopgm, but  it  recognizes
       the options common to all programs based on libnetpbm (See
        Common Options ⟨index.html#commonoptions⟩ .)

SEE ALSO

       pgmtolispm(1), pgm(1)

LIMITATIONS

       The Lispm bitmap file format is a bit quirky;  Usually the image in the file has its width
       rounded up to the next higher multiple of 32, but not always.   If  the  width  is  not  a
       multiple  of  32, we don't deal with it properly, but because of the Lispm microcode, such
       arrays are probably not image data anyway.

       Also, the Lispm code for saving bitmaps has a bug, in that if you  are  writing  a  bitmap
       which  is  not  mod32  across,  the  file  may be up to 7 bits too short!  They round down
       instead of up, and we don't handle this bug gracefully.

AUTHOR

       Copyright (C) 1991 by Jamie Zawinski and Jef Poskanzer.

DOCUMENT SOURCE

       This manual page was generated by the Netpbm tool 'makeman' from HTML source.  The  master
       documentation is at

              http://netpbm.sourceforge.net/doc/lispmtopgm.html