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pnmmontage(1)									    pnmmontage(1)

NAME
       pnmmontage - create a montage of portable anymaps

SYNOPSIS
       pnmmontage [-?|-help] [-header=headerfile] [-quality=n] [-prefix=prefix] [-0|-1|-2|...|-9]
       pnmfile...

DESCRIPTION
       Packs images of differing sizes into a minimum-area composite image, optionally	producing
       a C header file with the locations of the subimages within the composite image.

OPTIONS
       -?, -help
	      Displays a (very) short usage message.

       -header
	      Tells  pnmmontage  to write a C header file of the locations of the original images
	      within the packed image.	Each original image generates four  #defines  within  the
	      packed  file:  xxxX,  xxxY,  xxxSZX, and xxxSZY, where xxx is the name of the file,
	      converted to all uppercase.  The #defines OVERALLX and OVERALLY are also	produced,
	      specifying the total size of the montage image.

       -prefix
	      Tells pnmmontage to use the specified prefix on all of the #defines it generates.

       -quality
	      Before  attempting to place the subimages, pnmmontage will calculate a minimum pos-
	      sible area for the montage; this is either the total of the areas of all the subim-
	      ages, or the width of the widest subimage times the height of the tallest subimage,
	      whichever is greater.  pnmmontage then initiates a problem-space search to find the
	      best packing; if it finds a solution that is (at least) as good as the minimum area
	      times the quality as a percent, it will break out of the search.	Thus, -q 100 will
	      find  the  best  possible solution; however, it may take a very long time to do so.
	      The default is -q 200.

       -0, -1, ... -9
	      These options control the quality at a higher level than -q; -0 is the worst  qual-
	      ity  (literally  pick the first solution found), while -9 is the best quality (per-
	      form an exhaustive search of problem space for the  absolute  best  packing).   The
	      higher the number, the slower the computation.  The default is -5.

NOTES
       Using -9 is excessively slow on all but the smallest image sets.  If the anymaps differ in
       maxvals, then pnmmontage will pick the smallest maxval which is evenly divisible  by  each
       of the maxvals of the original images.

SEE ALSO
       pnmcat(1), pnmindex(1), pnm(5), pam(5), pbm(5), pgm(5), ppm(5)

AUTHOR
       Copyright (C) 2000 by Ben Olmstead.

					 31 December 2000			    pnmmontage(1)
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