Pnmcat User Manual(0) Pnmcat User Manual(0)NAMEpnmcat - concatenate Netpbm images
SYNOPSISpnmcat
{-leftright | -lr | -topbottom | -tb}
[-white|-black]
[-jtop|-jbottom|-jcenter]
pnmfile ...
Minimum unique abbreviation of option is acceptable. You may use dou‐
ble hyphens instead of single hyphen to denote options. You may use
white space in place of the equals sign to separate an option name from
its value.
DESCRIPTION
This program is part of Netpbm(1)pnmcat reads one or more PNM images as input, concatenates them either
left to right or top to bottom, and produces a single PNM image as out‐
put.
The arguments are names of input files. Any one of these, but not more
than one, may be '-' to indicate Standard Input. If you have no argu‐
ments, that means a single input image from Standard Input (and that is
pointless - the output is the same as the input).
To assemble a regular grid of images, you can use pamundice.
To do the reverse, you might use pamdice to split an image up into
smaller ones of equal size or pamcut to chop off part of an image or
extract part of an image.
pnmtile concatenates a single input image to itself repeatedly.
OPTIONS
If the PNM images are not all the same height (left-right) or width
(top-bottom), the smaller ones have to be justified with the largest.
By default, pnmcat centers them, but you can specify justification to
one side or the other with one of the -jxxx options. So, -topbottom
-jleft would stack the PNMs on top of each other, flush with the left
edge.
The -white and -black options specify what color to use to fill in the
extra space when doing this justification. If neither is specified,
pnmcat chooses whichever seems to be right for the images.
SEE ALSOpamundice(1) , pamdice(1) , pnmtile(1) , pamcut(1) , pnm(1)AUTHOR
Copyright (C) 1989 by Jef Poskanzer.
netpbm documentation 30 May 2011 Pnmcat User Manual(0)
