#!/bin/sh

if test ! -f out/$1
then
	echo "Need an output file name, e.g. arc_angles.ps" >&2
	exit 1
fi

name=`echo $1 | sed "s/[.][^.]*$//"`


mkdir -p diff

echo "convert ref..."
convert -density 200 ref/$1 diff/ref_$name.png

echo "convert out..."
convert -density 200 out/$1 diff/out_$name.png

echo "diff:"

for n in diff/ref_$name*.png
do
	m=`echo "$n" | sed "s/ref_/out_/"`
	d=`echo "$n" | sed "s/ref_/diff_/"`
	res=`compare "$n" "$m"  -metric AE  $d 2>&1`
	echo "  $n \"$res\""
	test "$res" -lt 8 && rm $d $n $m
done