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 possible area for the montage; this is either the
total of the areas of all the subimages, 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 quality (literally pick the first
solution found), while -9 is the best quality (perform 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.