#!/bin/sh
#
#  Shell equivelent of the perl version
#
#font='-adobe-helvetica-medium-r-normal--25-180-100-100-p-130-iso8729-1';
#font='Times';
font='Arial';

o=75  x=$o  y=$o
o2=`expr $x \* 2`
o3=`expr $x \* 3`
o5=`expr $x \* 5`
o6=`expr $x \* 6`

for angle in  0 30 60 90 120 150 180 210 240 270 300 330
do
  echo "angle $angle"
  a=`printf "%03d" $angle`

  rot_text="rotate $angle text 0,0"

  convert -size ${o6}x${o6} xc:white \
    -stroke '#600' -fill none \
      -draw "line $o3,$o $o3,$o5" \
      -draw "line $o,$o3 $o5,$o3" \
      -draw "rectangle $o,$o $o5,$o5" \
    -stroke none -fill black -box yellow   -font $font  -pointsize 18 \
      -draw "gravity None      translate $o2,$o2 $rot_text 'Default'" \
    -box none \
      -draw "gravity NorthWest translate $x,$y   $rot_text 'North West'" \
      -draw "gravity North     translate  0,$y   $rot_text 'North'" \
      -draw "gravity NorthEast translate $x,$y   $rot_text 'North East'" \
      -draw "gravity West      translate $x,0    $rot_text 'West'" \
      -draw "gravity Center    translate  0,0    $rot_text 'Center'" \
      -draw "gravity East      translate $x,0    $rot_text 'East'" \
      -draw "gravity SouthWest translate $x,$y   $rot_text 'South West'" \
      -draw "gravity South     translate  0,$y   $rot_text 'South'" \
      -draw "gravity SouthEast translate $x,$y   $rot_text 'South East'" \
    annotate_angle_$a.gif
done

echo "Creating animation"
convert -delay 20 -loop 0 annotate_angle_*.gif im_annotate_sh.gif
rm annotate_angle_*.gif

echo "Animating"
exec animate im_annotate_sh.gif

# Optimization Program
#gifsicle -b -O2 im_annotate_sh.gif