#! /bin/csh -f
#
#  Script to convert postscript to (lo res) JPEG
#
 if ($#argv < 2) then
  echo " Usage: jjPs2Jpeg file.ps file.jpeg " > /dev/tty
  exit 1
 endif 

# the cmd line for ghost script is a mess. 
# try to make the code more legible.

set device = "jpeg"
set resolution = "4800"

# tcsh is very lame. 
# We can only do integer math so paper width 
# and height need to be integer, hack around 
# this by setting up for 11x17 and then scaling...
#
# This means that your resolution should ideally
# be a multiple of 2, but if you can live with
# the truncation and roundoff, it's not a problem.

# for 11x17 set scale to be 1, x=11, y=17
# i.e. divide 17x22 by 2

@ scale = 1
@ width = 11
@ height = 17

# for 8.5 x 11 set scale to be 2, x=17, y=22
# i.e. divide 17x22 by 2

@ scale = 2
@ width = 17
@ height = 22

# and here we just pick some dimensions

@ scale = 1
@ width = 12
@ height = 12

@ nx = $width * $resolution 
@ nx /= $scale

@ ny = $height * $resolution 
@ ny /= $scale

# still need to account for portrait/landscape

echo $nx $ny
if ("$3" == "-P") then
	echo "Portrait layout"
	set size = "$nx""x""$ny"
else
	echo "Landscape layout"
	set size = "$ny""x""$nx"
endif

echo "gs -sDEVICE=$device -r$resolution -g$size -SOutputFile=$2  $1"

# now we actually run the job

gs -sDEVICE=$device -r$resolution -g$size -SOutputFile=$2  $1 << %
quit
quit
%
echo " "