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#!/bin/sh
#
# pcdovtoppm - generate a single PPM file from a PCD overview file
#
# Based on pnmindex (PBMPLUS), which was written by Jef Poskanzer,
# this script makes also use of hpcdtoppm, written by Hadmut Danisch.
#
# Formerly called Pcdindex.
#
# A similar result can be achieved by using "hpcdtoppm -Overview"
# followed by "pnmindex -black" on the generated PPM images.
# This shell just makes it more convenient and transparent to
# convert from one PCD to one PPM overview file.
#
# Additional options (compared to pnmindex) are -maxwidth and
# -font <font>. See "man pbmtext" on how to create your own font.
#
# Pieter S. van der Meulen, 1992.
# Rewritten in sh by Steve McIntyre <93sam@debian.org>, 2001
# You may want to change the default values in the next 6 lines:
maxwidth=1152 # maximum width of the index image
size=192 # make the images about this big
across=6 # show this many images per row
colors="noquant" # maximum amount of colors or noquant (no quantization)
back="-black" # default background color
font=" " # default font or none (pbmtext's internal font)
usage ()
{
echo "Usage: $0 [-m W] [-s S] [-a A] [-c N|n] [-f F] [-b|-w] <overview.pcd>"
echo " with"
echo " W = maximum width of the result image (default: $maxwidth)"
echo " S = maximum size of each of the images (default: $size)"
echo " A = maximum number of images across (default: $across)"
echo " N = maximum number of colors or noquant (default: $colors)"
echo -n " F = font to be used for annotation (default: "
if [ "$font" = " " ] ; then
echo "internal font)"
else
echo "$font)"
fi
echo " -b/-w = black/white background color (default: $back)"
echo " "
echo " e.g.: $0 -m 768 -s 96 -f smallfont.pbm overview.pcd > overview.ppm"
echo " or : $0 /cdrom/photo_cd/overview.pcd | ppmtojpeg > overview.jpg"
exit 1
}
# Parse the options
while :; do
case "$1" in
-m*)
if [ $# -lt 2 ] ; then usage; fi
maxwidth="$2"
shift
shift
;;
-s*)
if [ $# -lt 2 ] ; then usage; fi
size="$2"
shift
shift
;;
-a*)
if [ $# -lt 2 ] ; then usage; fi
across="$2"
shift
shift
;;
-c*)
if [ $# -lt 2 ] ; then usage; fi
colors="$2"
shift
shift
;;
-f*)
if [ $# -lt 2 ] ; then usage; fi
font="-font $2"
shift
shift
;;
-b*)
back="-black"
shift
;;
-w*)
back="-white"
shift
;;
-*)
echo "$0 : Unknown option $1"
echo " "
usage
;;
*)
break
;;
esac
done
if [ $# = 0 ]; then
usage
fi
tmpfile=`tempfile -p pi -m 600`
rowfiles=()
imagefiles=()
row=1
col=1
width=$size
# Convert the PCD overview file to many PPM images
if [ -f $1 ] ; then
hpcdtoppm -Overview $1 $tmpfile
else
echo "$0 : Could not access $1"
echo " "
usage
fi
for i in "$tmpfile"*
do
if [ -f $i ] ; then
description=`pnmfile $i`
if [ "${description[4]}" -le $size -a \
"${description[6]}" -le $size ] ; then
cat $i > $tmpfile
else
if [ "$colors" = "n" ] ; then
pnmscale -quiet -xysize $size $size $i > $tmpfile
else
pnmscale -quiet -xysize $size $size $i | \
ppmquant -quiet $colors > $tmpfile
fi
fi
fi
imagefile=pi.${row}.${col}.$$
rm -f $imagefile
ttext="$i:t"
if [ "$back" = "-white" ] ; then
pbmtext $font "$ttext" | pnmcrop -quiet | pnmmargin -white 2| \
pnmcat $back -tb $tmpfile - > $imagefile
else
pbmtext $font "$ttext" | pnmcrop -quiet | pnmmargin -white 2 | \
pnminvert | pnmcat $back -tb $tmpfile - > $imagefile
fi
rm -f $tmpfile
description=`pnmfile $imagefile`
width=$(( $width + ${description[4]} ))
imagefiles="$imagefiles $imagefile"
if [ $col -ge $across -o $width -gt $maxwidth ] ; then
rowfile=pi.${row}.$$
rm -f $rowfile
if [ "$colors" = "n" ] ; then
pnmcat $back -lr -jbottom $imagefiles > $rowfile
else
pnmcat $back -lr -jbottom $imagefiles | \
ppmquant -quiet $colors > $rowfile
fi
rm -f $imagefiles
imagefiles=()
rowfiles="$rowfiles $rowfile"
col=1
row=$(( $row + 1 ))
width=$size
else
col=$(( $col + 1 ))
fi
done
if [ ${#imagefiles[*]} -gt 0 ] ; then
rowfile=pi.${row}.$$
rm -f $rowfile
if [ "$colors" = "n" ] ; then
pnmcat $back -lr -jbottom $imagefiles > $rowfile
else
pnmcat $back -lr -jbottom $imagefiles | \
ppmquant -quiet $colors > $rowfile
fi
rm -f $imagefiles
rowfiles="$rowfiles $rowfile"
fi
if [ ${#rowfiles[*]} = 1 ]; then
cat $rowfiles
else
if [ "$colors" = "n" ] ; then
pnmcat $back -tb $rowfiles
else
pnmcat $back -tb $rowfiles | ppmquant -quiet $colors
fi
fi
rm -f $rowfiles
exit 0
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