umgeschrieben, vereinfacht, 2 Parameter

MKS-270/createImages

 #!/bin/bash
 #
-# Rolf Niepraschk <Rolf.Niepraschk@ptb.de>, 2016-12-14
+# Rolf Niepraschk <Rolf.Niepraschk@ptb.de>, 2017-04-03
 #
 # Erzeugt aus einem leeren Messgeräte-Bild und neun 7-Segment-Bildern
-# neue Messgeräte-Bilder mit zufälliger 6-stelliger Anzeige
+# neue Messgeräte-Bilder 
 #
+# Parameter1 = Anzahl der erzeugten Bilddateien
+#
+# Parameter2 = Anzahl der Einzelziffern
 
-MAIN="MKS-270" # device name
+MAIN="SRG-2" # device name
 IMAGE_DIR=./images
-MAX_FILES=10
+MAX_DIGITS=6 # do not edit!
+MAX_FILES=10 # do not edit!
+NUMBER_OF_DIGITS=$MAX_DIGITS
+
+SHOW_EXP=1
+
+if [ -n "$1" ]; then
+  MAX_FILES=$1
+  if [ -n "$2" ]; then
+    SHOW_EXP=0
+    NUMBER_OF_DIGITS=$2
+  fi  
+fi
+
+if (( $NUMBER_OF_DIGITS > $MAX_DIGITS )); then
+  NUMBER_OF_DIGITS=$MAX_DIGITS
+else 
+  if (( $NUMBER_OF_DIGITS < 1 )); then
+    NUMBER_OF_DIGITS=1
+  fi
+fi 
 
 rm -rf "$IMAGE_DIR"
 mkdir -p "$IMAGE_DIR"
 
-dotFile='dot.png'
-plusFile='plus.png'
-minusFile='minus.png'
+_dotFile='dot.png'
+_plusFile='plus.png'
+_minusFile='minus.png'
 emptyCanvas='xc:transparent'
 
 digitFile[0]='digit-0.png'
@@ -28,78 +51,104 @@ digitFile[6]='digit-6.png'
 digitFile[7]='digit-7.png'
 digitFile[8]='digit-8.png'
 digitFile[9]='digit-9.png'
+digitFile[98]=$emptyCanvas
 digitFile[99]=$emptyCanvas
 
-digitPos[7]='+133+151'
-digitPos[6]='+133+151'
-digitPos[5]='+193+151'
-digitPos[4]='+253+151'
-digitPos[3]='+313+151'
-digitPos[2]='+373+151'
-digitPos[1]='+433+151'
-
-dotPos[6]='+133+151'
-dotPos[5]='+193+151'
-dotPos[4]='+253+151'
-dotPos[3]='+313+151'
-dotPos[2]='+373+151'
-dotPos[1]='+433+151'
-
-signPos=${digitPos[7]}
+digitPos[1]='+133+151'
+digitPos[2]='+193+151'
+digitPos[3]='+253+151'
+digitPos[4]='+313+151'
+digitPos[5]='+373+151'
+digitPos[6]='+433+151'
+
+dotPos[1]=${digitPos[1]}
+dotPos[2]=${digitPos[2]}
+dotPos[3]=${digitPos[3]}
+dotPos[4]=${digitPos[4]}
+dotPos[5]=${digitPos[5]}
+dotPos[6]=${digitPos[6]}
+
+NUM2CHAR[0]='0'
+NUM2CHAR[1]='1'
+NUM2CHAR[2]='2'
+NUM2CHAR[3]='3'
+NUM2CHAR[4]='4'
+NUM2CHAR[5]='5'
+NUM2CHAR[6]='6'
+NUM2CHAR[7]='7'
+NUM2CHAR[8]='8'
+NUM2CHAR[9]='9'
+NUM2CHAR[98]=''
+NUM2CHAR[99]='_'
 
 for ((FNb=1; FNb<=MAX_FILES; FNb++)); do
 
-DPR=$((RANDOM % 6 + 1)) # random dot position (1..6)
 SIGN=$((RANDOM % 2)) # random (0|1=+|-)
 if [ $SIGN == 0 ]; then
-  SF=$plusFile # sign file
-  SCH='+'  # sign character
+  signFile=$_plusFile # sign file
+  signChar='+'  # sign character
 else
-  SF=$minusFile
-  SCH='-'
-fi 
-
-for i in {1..6}; do
-  if [ $i == 6 ]; then # position 6: "1" or nothing
-    DNR[6]=$((RANDOM % 2))
-    if [ ${DNR[6]} == 0 ]; then 
-      DNR[6]=99
-      DNR6="_"
+  signFile=$_minusFile
+  signChar='-'
+fi
+
+DPR=$((RANDOM % 6 + 1)) # random dot position (1..6) 
+
+for (( i=1; i<=$MAX_DIGITS; i++ )); do
+  if [ $i == 1 ]; then # position 1: "1" or nothing
+    if [ $((RANDOM % 2)) == 0 ]; then
+      if [ $DPR == 1 ]; then 
+        DNR[1]=98 # no space
+      else
+        DNR[1]=99 # space
+      fi
     else
-      DNR6="1"
+      DNR[1]=1
     fi
     # random digit number (99|1)
   else
     DNR[$i]=$((RANDOM % 10)) # random digit number (0..9)
   fi
   if [ $DPR == $i ]; then
-    DF[$i]="$dotFile"
-    DP[$i]="." # dot character
+    dotFile[$i]="$_dotFile"
+    dotChar[$i]="." # dot character
   else
-    DF[$i]=$emptyCanvas
-    DP[$i]=""
+    dotFile[$i]=$emptyCanvas
+    dotChar[$i]=""
   fi
 done
 
-value="${SCH}${DNR6}${DP[6]}${DNR[5]}${DP[5]}${DNR[4]}${DP[4]}"
-value+="${DNR[3]}${DP[3]}${DNR[2]}${DP[2]}${DNR[1]}${DP[1]}"
+value="${signChar}${DNR6}${dotChar[6]}${DNR[5]}${dotChar[5]}${DNR[4]}${dotChar[4]}"
+value+="${DNR[3]}${dotChar[3]}${DNR[2]}${dotChar[2]}${DNR[1]}${dotChar[1]}"
+
+value="${signChar}"
+for (( i=1; i<=$MAX_DIGITS; i++ )); do 
+  if (( $i <= $NUMBER_OF_DIGITS )); then
+    eval DIGIT$i=${digitFile[ ${DNR[i]} ]}
+    eval DF$i=${dotFile[i]}
+    value+="${NUM2CHAR[${DNR[i]}]}${dotChar[i]}" 
+  else
+    eval DIGIT$i=$emptyCanvas;
+    eval DF$i=$emptyCanvas;
+  fi
+done
 
 fname="$IMAGE_DIR/$MAIN@$value@.png"
 
 convert body.png \
-  $SF                       -geometry $signPos       -composite \
-  ${digitFile[ ${DNR[6]} ]} -geometry ${digitPos[6]} -composite \
-  ${DF[6]} -geometry ${dotPos[6]} -composite \
-  ${digitFile[ ${DNR[5]} ]} -geometry ${digitPos[5]} -composite \
-  ${DF[5]} -geometry ${dotPos[5]} -composite \
-  ${digitFile[ ${DNR[4]} ]} -geometry ${digitPos[4]} -composite \
-  ${DF[4]} -geometry ${dotPos[4]} -composite \
-  ${digitFile[ ${DNR[3]} ]} -geometry ${digitPos[3]} -composite \
-  ${DF[3]} -geometry ${dotPos[3]} -composite \
-  ${digitFile[ ${DNR[2]} ]} -geometry ${digitPos[2]} -composite \
-  ${DF[2]} -geometry ${dotPos[2]} -composite \
-  ${digitFile[ ${DNR[1]} ]} -geometry ${digitPos[1]} -composite \
-  ${DF[1]} -geometry ${dotPos[1]} -composite \
+  $signFile -geometry ${digitPos[1]} -composite \
+  $DIGIT1 -geometry ${digitPos[1]} -composite \
+  $DF1 -geometry ${dotPos[1]} -composite \
+  $DIGIT2 -geometry ${digitPos[2]} -composite \
+  $DF2 -geometry ${dotPos[2]} -composite \
+  $DIGIT3 -geometry ${digitPos[3]} -composite \
+  $DF3 -geometry ${dotPos[3]} -composite \
+  $DIGIT4 -geometry ${digitPos[4]} -composite \
+  $DF4 -geometry ${dotPos[4]} -composite \
+  $DIGIT5 -geometry ${digitPos[5]} -composite \
+  $DF5 -geometry ${dotPos[5]} -composite \
+  $DIGIT6 -geometry ${digitPos[6]} -composite \
+  $DF6 -geometry ${dotPos[6]} -composite \
   $fname
 
 exiv2 -M"set Exif.Image.ImageDescription value=$value" $fname
@@ -109,40 +158,6 @@ echo -e "$FNb:\t$fname"
 done # MAX_FILES
 
 exit
-
-Test:
-
-SF=$plusFile
-fname=yy.png
-DNR[6]=1
-DNR[5]=7
-DNR[4]=3
-DNR[3]=0
-DNR[2]=5
-DNR[1]=6
-
-DF[6]=$dotFile
-DF[5]=$emptyCanvas
-DF[4]=$emptyCanvas
-DF[3]=$emptyCanvas
-DF[2]=$emptyCanvas
-DF[1]=$emptyCanvas
-
-convert body.png \
-  $SF                       -geometry $signPos       -composite \
-  ${digitFile[ ${DNR[6]} ]} -geometry ${digitPos[6]} -composite \
-  ${DF[6]} -geometry ${dotPos[6]} -composite \
-  ${digitFile[ ${DNR[5]} ]} -geometry ${digitPos[5]} -composite \
-  ${DF[5]} -geometry ${dotPos[5]} -composite \
-  ${digitFile[ ${DNR[4]} ]} -geometry ${digitPos[4]} -composite \
-  ${DF[4]} -geometry ${dotPos[4]} -composite \
-  ${digitFile[ ${DNR[3]} ]} -geometry ${digitPos[3]} -composite \
-  ${DF[3]} -geometry ${dotPos[3]} -composite \
-  ${digitFile[ ${DNR[2]} ]} -geometry ${digitPos[2]} -composite \
-  ${DF[2]} -geometry ${dotPos[2]} -composite \
-  ${digitFile[ ${DNR[1]} ]} -geometry ${digitPos[1]} -composite \
-  ${DF[1]} -geometry ${dotPos[1]} -composite \
-  yy.png
   
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