Manual: lispmtopgm

Lispmtopgm User Manual(1)			   General Commands Manual			   Lispmtopgm User Manual(1)

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 .)

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 be‐
       cause 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

netpbm documentation					06 March 1990				   Lispmtopgm User Manual(1)