#! /bin/bash
# Last edited on 2024-04-01 17:26:23 by stolfi

# Tests wether the PBMPLUS file "$3" has 
# width and height proportional to "$1" and "$2".
# Returns status=0 if false, status=1 if true

if [[ ( $# -lt 2 ) || ( $# -gt 3 )  ]]; then  
  echo "usage: $0 <xsize> <ysize> [ <pnmfile> ] "
  exit 1
fi

if [[ $# -eq 2 ]]; then
  fxy=( `get-pnm-dimensions` )
else
  fxy=( `get-pnm-dimensions $3` )
fi
# echo "get-pnm-dimensions = ${fxy[*]}"

compare-ratios $1 $2 $fxy[1] $fxy[2]
# exit 1