butterflies -- butterfly tilings
Copyright (C) 2013  Claude Heiland-Allen <claude@mathr.co.uk>

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <http://www.gnu.org/licenses/>.


Example usage:

  #!/bin/bash
  for s in $(seq 2 5)
  do
    for p in $(seq 0 $((s/2)))
    do
      q=$((s-p))
      butterflies-flat $q $p -geometry 1024x1024
    done
  done