in case of (only) two maps, better map name positioning + max value indication

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@34030 15284696-431f-4ddb-bdfa-cd5b030d7da7

scripts/d.correlate/d.correlate

@@ -54,6 +54,11 @@ if [ -z "$GISBASE" ] ; then
 fi
 
 if [ "$1" != "@ARGS_PARSED@" ] ; then
+    CMDLINE="`basename $0`"
+    for arg in "$@" ; do
+        CMDLINE="$CMDLINE \"$arg\""
+    done
+    export CMDLINE
     exec g.parser "$0" "$@"
 fi
 
@@ -96,31 +101,59 @@ if [ $? != 0 ] ; then
  exit 1
 fi
 
+# how many cmd line arguments?
+ARGNUM=`echo "$CMDLINE" | tr -s ' ' '\n' | wc -l | awk '{print $1 - 1}'`
+
 echo "CORRELATION" | d.text color=white size=4 line=1
 colors="red black blue green gray violet"
-line=2
+if [ $ARGNUM -eq 2 ] ; then
+  line=4
+else
+  line=2
+fi
 iloop=0
 jloop=0
+
+# get max in case of two maps for x, y axis
+eval `r.univar -g $GIS_OPT_LAYER1`
+max_layer1=$max
+eval `r.univar -g $GIS_OPT_LAYER2`
+max_layer2=$max
+
 for i in $GIS_OPT_LAYER1 $GIS_OPT_LAYER2 $GIS_OPT_LAYER3 $GIS_OPT_LAYER4
 do
    iloop=`expr $iloop + 1`
    for j in $GIS_OPT_LAYER1 $GIS_OPT_LAYER2 $GIS_OPT_LAYER3 $GIS_OPT_LAYER4 ; do
     jloop=`expr $jloop + 1`
     if [ "$i" != "$j" -a $iloop -le $jloop ] ; then
-     colorstmp1=`echo $colors | cut -d' ' -f1`
-     colorstmp2=`echo $colors | cut -d' ' -f2-`
-     colors=`echo $colorstmp2 $colorstmp1`
-
-     echo $i $j | d.text color=`echo $colors | cut -d' ' -f1` size=4 line=$line
-     line=`expr $line + 1`
-     r.stats -cnA input=$i,$j > "$TMP1"
-     m="`awk '$1>max1{max1=$1} $2>max2{max2=$2} min1==0||$1<min1{min1=$1} min2==0||$2<min2{min2=$2} END {print min1,max1,min2,max2}' $TMP1`"
-     m1=`echo $m | cut -d' ' -f1`
-     m2=`echo $m | cut -d' ' -f2`
-     m3=`echo $m | cut -d' ' -f3`
-     m4=`echo $m | cut -d' ' -f4`
-     awk '{print "move",($1-min1+1)*100.0/(max1-min1+1),($2-min2+1)*100.0/(max2-min2+1);print "draw",($1-min1+1)*100.0/(max1-min1+1),($2-min2+1)*100.0/(max2-min2+1) }' min1=$m1 max1=$m2 min2=$m3 max2=$m4 "$TMP1" | d.graph color=`echo $colors | cut -d' ' -f1`
+      colorstmp1=`echo $colors | cut -d' ' -f1`
+      colorstmp2=`echo $colors | cut -d' ' -f2-`
+      colors=`echo $colorstmp2 $colorstmp1`
+
+      if [ $ARGNUM -eq 2 ] ; then
+        echo $j | d.text color=`echo $colors | cut -d' ' -f1` size=4 at=0,9$line
+        echo $i | d.text color=`echo $colors | cut -d' ' -f1` size=4 at=60,0$line
+      else
+        echo $i $j | d.text color=`echo $colors | cut -d' ' -f1` size=4 line=$line
+      fi
+      line=`expr $line + 1`
+      r.stats -cnA input=$i,$j > "$TMP1"
+      m="`awk '$1>max1{max1=$1} $2>max2{max2=$2} min1==0||$1<min1{min1=$1} min2==0||$2<min2{min2=$2} END {print min1,max1,min2,max2}' $TMP1`"
+      m1=`echo $m | cut -d' ' -f1`
+      m2=`echo $m | cut -d' ' -f2`
+      m3=`echo $m | cut -d' ' -f3`
+      m4=`echo $m | cut -d' ' -f4`
+      awk '{print "move",($1-min1+1)*100.0/(max1-min1+1),($2-min2+1)*100.0/(max2-min2+1);print "draw",($1-min1+1)*100.0/(max1-min1+1),($2-min2+1)*100.0/(max2-min2+1) }' min1=$m1 max1=$m2 min2=$m3 max2=$m4 "$TMP1" | d.graph color=`echo $colors | cut -d' ' -f1`
 
+      if [ $ARGNUM -eq 2 ] ; then
+         d.graph << EOF
+size 2 2
+move 0 92
+text $max_layer1
+move 90 2
+text $max_layer2
+EOF
+      fi
     fi
    done
    jloop=0