1Pnmcat User Manual(0) Pnmcat User Manual(0)
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6 pnmcat - concatenate Netpbm images
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10 pnmcat
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12 {-leftright | -lr | -topbottom | -tb}
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14 [-white|-black]
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16 [-jtop|-jbottom|-jcenter]
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18 pnmfile ...
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20 Minimum unique abbreviation of option is acceptable. You may use dou‐
21 ble hyphens instead of single hyphen to denote options. You may use
22 white space in place of the equals sign to separate an option name from
23 its value.
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27 This program is part of Netpbm(1).
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29 pnmcat reads one or more PNM images as input, concatenates them either
30 left to right or top to bottom, and produces a single PNM image as out‐
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33 To assemble a regular grid of images, you can use pamundice.
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35 To do the reverse, you might use pamdice to split an image up into
36 smaller ones of equal size or pamcut to chop off part of an image or
37 extract part of an image.
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39 pnmtile concatenates a single input image to itself repeatedly.
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43 If the PNM images are not all the same height (left-right) or width
44 (top-bottom), the smaller ones have to be justified with the largest.
45 By default, pnmcat centers them, but you can specify justification to
46 one side or the other with one of the -jxxx options. So, -topbottom
47 -jleft would stack the PNMs on top of each other, flush with the left
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50 The -white and -black options specify what color to use to fill in the
51 extra space when doing this justification. If neither is specified,
52 pnmcat chooses whichever seems to be right for the images.
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56 pamundice(1), pamdice(1), pnmtile(1), pamcut(1), pnm(1)
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60 Copyright (C) 1989 by Jef Poskanzer.
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64netpbm documentation 01 April 2007 Pnmcat User Manual(0)