PNMINDEX

NAME

      pnmindex - build a visual index of a bunch of anymaps

SYNOPSIS

      pnmindex [-size N] [-across N] [-colors N] [-black] pnmfile ...

DESCRIPTION

      This script makes small versions of a bunch of anymaps, adds labels,
      and concatenates them together into a collage.

OPTIONS

      -size
           Controls how big each image becomes; the default is 100x100.
      -across
           Controls how many images are in each row; the default is 6.
      -colors
           Controls how many colors the final index gets quantized to, if
           quantization is necessary; the default is 256.
      -black
           Controls the color of the padding between the images; normally
           it's white and the labels are black lettering on white
           background, but the -black flag reverses this.

DEMONSTRATION

      Let a.pnm be a portable graymap.
      The following command will reduce it by a factor of 2 and produce a GIF 
      file with it:
	pbmmerge pbmreduce 2 a.pbm >ared2.pbm

BEFORE

AFTER

Reduced 2 times:

SEE ALSO

      pnmscale(1), pnmcat(1), pbmtext(1), ppmquant(1), pnm(5)

BUGS

      It's very slow.
      It's a csh script.  Csh scripts are not portable to System V.  Scripts
      in general are not portable to non-Unix environments.

AUTHOR

      Copyright (C) 1991 by Jef Poskanzer.