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| #!/bin/bash # to convert png files into a single pdf file using pdflatex # usage: # png2pdf.sh png-file[s] -o png2pdf.pdf -nC nCol -nR nRow # e.g., # Given 12 png files (one for each month) with a name like "ssh_??.png", # to create a 3-pages pdf file with 2 by 2 on each page, # and a caption like "Fiugre* Sea Surface Height \\ ??; ?? \\ ??; ??" # where \\ means line break and ?? is the month-tag in original png filename. # you can run, # png2pdf.sh -o ssh_monthly.pdf -nC 2 -nR 2 ssh_??.png -title 'Sea Surface Height' -ns 5 -ne 6 # [ here -ns: start-index of characters for the caption; -ne: end-index] # or # png2pdf.sh -o ssh_monthly.pdf -nC 2 -nR 2 ssh_??.png -title 'Sea Surface Height' -sep '_' 2 # [-sep: field seperator, 2 is the No. of field used for the caption] # # http://scriptdemo.blogspot.com fixCaption() { echo $* | sed -e 's@_@--@g' } nfile=0 isPDFname=0 isnCol=0 isnRow=0 isDel=0 isCaption=0 isSep=0 isDebug=0 [ $# -eq 0 ] && sed -n '3,17p' `which png2pdf.sh` && exit while test -n "$1" do case "$1" in -nC|-nc|-nCol|-ncol|-Ncol) nCol=$2 isnCol=1 shift shift ;; -nR|-nr|-nRow|-Nrow|-nrow) nRow=$2 isnRow=1 shift shift ;; -title|-Title|-Caption|-caption|-c) myCaption=$2 isCaption=1 shift shift ;; -sep|-Sep|-seperator) mysep=$2 mynf=$3 isSep=1 isCaption=1 shift; shift; ;; -ns|-NS|-CS|-cs) cstart=$2 isCaption=1 shift shift ;; -ne|-NE|-CE|-ce) cend=$2 isCaption=1 shift shift ;; -d|-delete|-del|-D) isDel=1; shift ;; -debug|-Debug) isDebug=1 shift ;; -o|-O) pdfname=$2 isPDFname=1 shift shift ;; *) sufstr=`echo $1 | awk -F. '{print $2}'` if [ ${#sufstr} -eq 0 ]; then tmpfile="$1".png if [ -f ${tmpfile} ]; then imgfile[$nfile]=${tmpfile} nfile=`expr $nfile + 1` fi elif [ -f $1 ]; then if [ -f $1 ]; then imgfile[$nfile]=$1 nfile=`expr $nfile + 1` fi fi shift ;; esac done if [ ${isnRow} -eq 0 ] && [ ${isnCol} -eq 0 ]; then nCol=1 nRow=1 nPage=${nfile} elif [ ${isnCol} -eq 1 ] && [ ${isnRow} -eq 0 ]; then nRow=`echo "${nfile}/${nCol}" | bc -l | awk '{ if ($1 == int($1)) {printf "%d\n", $1} else { if ($1>0) {printf "%d\n",int($1)+1 } else {printf "%d\n",int($1)} } }'` nPage=1 elif [ ${isnRow} -eq 1 ] & [ ${isnCol} -eq 0 ]; then nCol=`echo "${nfile}/${nRow}" | bc -l | awk '{ if ($1 == int($1)) {printf "%d\n", $1} else { if ($1>0) {printf "%d\n",int($1)+1 } else {printf "%d\n",int($1)} } }'` nPage=1 else nPage=`echo "${nfile}/${nRow}/${nCol}" | bc -l | awk '{ if ($1 == int($1)) {printf "%d\n", $1} else { if ($1>0) {printf "%d\n",int($1)+1 } else {printf "%d\n",int($1)} } }'` fi if [ ${isCaption} -eq 1 ]; then if [ ${#cend} -ne 0 ] & [ ${#cstart} -eq 0 ]; then cstart=1 fi fi colstr=`printf "%*s\n" ${nCol} " " | sed -e 's/\ /c/g'` nwidth=$(printf "%.2f\n" `echo "1/${nCol}" | bc -l`) [ ${nwidth} == "1.00" ] && nwidth="" [ ${isDebug} -eq 1 ] && echo -e "nCol=${nCol}\nnRow=${nRow}\nnWid=${nwidth}\nnPage=${nPage}" # header of tex file [ ${isPDFname} -eq 0 ] && pdfname="png2pdf.pdf" texfile=${pdfname%.*}.tex [ -e ${texfile} ] && mv ${texfile} old_${texfile} touch ${texfile} echo '\documentclass[letterpaper,12pt]{article}' >> ${texfile} echo '\usepackage{graphicx}' >> ${texfile} [ ${isCaption} -eq 1 ] && echo '\usepackage{caption}' >> ${texfile} echo '\begin{document}' >> ${texfile} for (( np=0; np<${nPage}; np++ )) do echo '\thispagestyle{empty}' >> ${texfile} echo '\begin{figure}' >> ${texfile} echo '\centering' >> ${texfile} echo "\begin{tabular}{${colstr}}" >> ${texfile} ns=`expr ${np} \* ${nCol} \* ${nRow}` if [ ${isCaption} -eq 1 ] && [ ${#myCaption} -ne 0 ]; then if [ ${#cstart} -ne 0 ] || [ ${#cend} -ne 0 ]; then tmpCaption="${myCaption} \protect \\\\" else tmpCaption="${myCaption}" fi else tmpCaption="" fi for (( nL=0; nL<${nRow}; nL++ )) do nss=`expr ${ns} + ${nCol} \* ${nL}` for (( nC=0; nC<${nCol}; nC++ )) do nfig=`expr ${nss} + ${nC}` if [ ${nfig} -lt ${nfile} ]; then imgname=${imgfile[$nfig]} if [ ${nC} -eq `expr ${nCol} - 1` ]; then if [ ${nL} -eq `expr ${nRow} - 1` ]; then tmpstr="" else tmpstr=" \\\\" fi else tmpstr=" &" fi if [ ${nL} -eq `expr ${nRow} - 1` ] && [ ${nC} -eq `expr ${nCol} - 1` ]; then tmpstr="" fi [ ${nfig} -eq `expr ${nfile} - 1` ] && tmpstr="" if [ ${isCaption} -eq 1 ]; then if [ ${isSep} -eq 0 ]; then if [ ${#cend} -eq 0 ]; then subfn=`echo ${imgname} | cut -c${cstart}-` else subfn=`echo ${imgname} | cut -c${cstart}-${cend}` fi else subfn=`echo ${imgname} | cut -d${mysep} -f${mynf}` #echo "${imgname} "sep="${mysep} nf=${mynf} ==> ${subfn}" fi if [ ${#subfn} -ne 0 ]; then [ "${tmpstr}" == "" ] && tmpCaption="${tmpCaption}${subfn}" [ "${tmpstr}" == " \\\\" ] && tmpCaption="${tmpCaption}${subfn} \protect \\\\ " [ "${tmpstr}" == " &" ] && tmpCaption="${tmpCaption}${subfn}; " fi fi echo "\includegraphics[width=${nwidth}\linewidth]{${imgname}} ${tmpstr}" >> ${texfile} fi done done echo "\end{tabular}" >> ${texfile} if [ ${isCaption} -eq 1 ]; then tmpCaption=`fixCaption ${tmpCaption}` echo "\caption{${tmpCaption}}" >> ${texfile} fi echo "\end{figure}" >> ${texfile} [ ${np} -lt `expr ${nPage} - 1` ] && echo "\clearpage" >> ${texfile} done echo "\end{document}" >> ${texfile} [ ! -f ${texfile} ] && echo "failed to create tex file ==> exit" && exit #compile the tex file logfile=${pdfname%.*}.log auxfile=${pdfname%.*}.aux if [ ${isDebug} -eq 1 ]; then pdflatex ${texfile} else pdflatex -interaction=batchmode ${texfile} 1>/dev/null fi [ -f ${logfile} ] && rm -f ${logfile} [ -f ${auxfile} ] && rm -f ${auxfile} [ ${isDel} -eq 1 ] && rm -f ${texfile} |
