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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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