fertig

UNKNOWN/createImages

+#!/bin/bash
+#
+# Rolf Niepraschk <Rolf.Niepraschk@ptb.de>, 2017-03-30
+#
+# Erzeugt aus einem leeren Messgeräte-Bild und neun 7-Segment-Bildern
+# neue Messgeräte-Bilder mit zufälliger Anzeige
+#
+# Parameter=Anzahl der Mantissenziffern
+# (wenn angegeben, dann kein Exponenent)
+
+MAIN="KEITHLEY-617" # device name
+IMAGE_DIR=./images
+MAX_FILES=10
+MAX_DIGITS=3 # do not edit!
+
+if [ -n "$1" ]; then
+  NUMBER_OF_DIGITS=$1
+  SHOW_EXP=0
+else
+  NUMBER_OF_DIGITS=$MAX_DIGITS
+  SHOW_EXP=1
+fi
+
+if (( $NUMBER_OF_DIGITS > $MAX_DIGITS )); then
+  NUMBER_OF_DIGITS=$MAX_DIGITS
+fi 
+if (( $NUMBER_OF_DIGITS < 1 )); then
+  NUMBER_OF_DIGITS=1
+fi 
+
+rm -rf "$IMAGE_DIR"
+mkdir -p "$IMAGE_DIR"
+
+dotFile='dot.png'
+minusFile='minus.png'
+emptyCanvas='xc:transparent'
+
+digitFile[0]='digit-0.png'
+digitFile[1]='digit-1.png'
+digitFile[2]='digit-2.png'
+digitFile[3]='digit-3.png'
+digitFile[4]='digit-4.png'
+digitFile[5]='digit-5.png'
+digitFile[6]='digit-6.png'
+digitFile[7]='digit-7.png'
+digitFile[8]='digit-8.png'
+digitFile[9]='digit-9.png'
+digitFile[E]='digit-E.png'
+digitFile[99]=$emptyCanvas # empty canvas
+
+digitPos[3]='+273+190'
+digitPos[2]='+319+190'
+digitPos[1]='+365+190'
+
+dotPos[3]=${digitPos[3]}
+dotPos[2]=${digitPos[2]}
+dotPos[1]=${digitPos[1]}
+
+for ((FNb=1; FNb<=MAX_FILES; FNb++)); do
+
+DPR=$((RANDOM % $NUMBER_OF_DIGITS + 1)) # random dot position (1..$NUMBER_OF_DIGITS)
+for (( i=1; i<=$MAX_DIGITS; i++ )); do 
+  DNR[$i]=$((RANDOM % 10 + 1)) # random digit number (0..10)
+  if [ ${DNR[i]} == 10 ]; then
+    DNR[$i]="E"
+  fi
+  if [ $DPR == $i ]; then
+    dotFile[$i]="$dotFile"
+    DOT[$i]="." # dot character
+  else
+    dotFile[$i]=$emptyCanvas
+    DOT[$i]=""
+  fi  
+done 
+
+value=""
+for (( i=1; i<=$MAX_DIGITS; i++ )); do  
+  if (( $i <= $NUMBER_OF_DIGITS )); then
+    eval DIGIT$i=${digitFile[ ${DNR[i]} ]}
+    eval DF$i=${dotFile[i]}
+    value+="${DNR[i]}${DOT[i]}" 
+  else
+    eval DIGIT$i=$emptyCanvas;
+    eval DF$i=$emptyCanvas;
+  fi
+done
+
+fname="$IMAGE_DIR/$MAIN@$value@.png"
+
+convert body.png \
+  $DIGIT1  -geometry ${digitPos[3]}  -composite \
+  $DF1                   -geometry ${dotPos[3]}    -composite \
+  $DIGIT2  -geometry ${digitPos[2]}  -composite \
+  $DF2                   -geometry ${dotPos[2]}    -composite \
+  $DIGIT3  -geometry ${digitPos[1]}  -composite \
+  $DF3                   -geometry ${dotPos[1]}    -composite \
+  $fname
+
+exiv2 -M"set Exif.Image.ImageDescription value=$value" $fname
+
+echo -e "$FNb:\t$fname"
+
+done # MAX_FILES
+
+exit
+  
+-----------------------------------------------------------------------
+
+Auslesen der Exif-Daten:
+exiv2 -g Exif.Image.ImageDescription -P v ./images/151.108@GERAET_X.png
+--> value=151.108
+
+exit
+

UNKNOWN/testImage

+#!/bin/bash
+
+MAIN="UNKNOWN" # device name
+IMAGE_DIR=./images
+
+dotFile='dot.png'
+minusFile='minus.png'
+emptyCanvas='xc:transparent'
+
+fname=yy.png
+
+digitFile[0]='digit-0.png'
+digitFile[1]='digit-1.png'
+digitFile[2]='digit-2.png'
+digitFile[3]='digit-3.png'
+digitFile[4]='digit-4.png'
+digitFile[5]='digit-5.png'
+digitFile[6]='digit-6.png'
+digitFile[7]='digit-7.png'
+digitFile[8]='digit-8.png'
+digitFile[9]='digit-9.png'
+digitFile[E]='digit-E.png'
+digitFile[99]=$emptyCanvas # empty canvas
+
+DNR[3]=8
+DNR[2]=E
+DNR[1]=6
+
+dotFile[3]=$dotFile
+dotFile[2]=$emptyCanvas
+dotFile[1]=$emptyCanvas
+
+ESCH='-'
+
+DOT[3]='.'
+DOT[2]=''
+DOT[1]=''
+
+ESF=$minusFile
+
+digitPos[3]='+273+190'
+digitPos[2]='+319+190'
+digitPos[1]='+365+190'
+
+dotPos[3]=${digitPos[3]}
+dotPos[2]=${digitPos[2]}
+dotPos[1]=${digitPos[1]}
+
+esignPos=${digitPos[3]}
+
+convert body.png \
+  ${digitFile[ ${DNR[3]} ]}  -geometry ${digitPos[3]}  -composite \
+  ${dotFile[3]}                   -geometry ${dotPos[3]}    -composite \
+  ${digitFile[ ${DNR[2]} ]}  -geometry ${digitPos[2]}  -composite \
+  ${dotFile[2]}                   -geometry ${dotPos[2]}    -composite \
+  ${digitFile[ ${DNR[1]} ]}  -geometry ${digitPos[1]}  -composite \
+  ${dotFile[1]}                   -geometry ${dotPos[1]}    -composite \
+  $fname
+  
+value="${DNR[3]}${DOT[3]}${DNR[2]}${DOT[2]}${DNR[1]}${DOT[1]}"
+
+fname="$IMAGE_DIR/$MAIN@$value@.png"
+
+echo -e "$fname"
+ 
+exit
+