function [ w, p ] = boundary_gort ( )

%*****************************************************************************80
%
%% boundary_gort(): the boundary word defining the Gort polyiamond.
%
%  Discussion:
%
%    5           x x x x-x x              *      * 4 *
%                 /\  / /                3 5    3    0
%    4         x-x x x x x          * 4 *   *  *    *
%             /    \/ /            3        5 3    0
%    3       x-x x x x x          * 1 *      *    *
%              \    /                  2         0
%    2     x x x x x x                  *       *
%             /     \                  3          5
%    1   x-x-x x x x          * 4 * 4 *             *
%       /         /          3                    0
%    0 x-x-x-x-x-x          * 1 * 1 * 1 * 1 * 1 *
%    J
%    I 0 1 2 3 4 5          Boundary word
%
%    The boundary word describes how to trace the boundary by starting
%    at a base point (i,j), and taking a sequence of steps of unit length 
%    in one of 6 directions, as suggested by this diagram:
%
%          5-----0-----*
%      ^  / \   / \   /
%     /  /   \ /   \ /
%    J  4-----P-----1
%      / \   / \   /
%     /   \ /   \ /
%    *-----3-----2
%
%          I-->
%
%    If the current position P has parallelogram coordinates (I,J), then
%    the step of given index moves to
%
%      0  (I,  J+1)
%      1  (I+1,J  )
%      2  (I+1,J-1)
%      3  (I,  J-1)
%      4  (I-1,J  )
%      5  (I-1,J+1)
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    05 November 2020
%
%  Author:
%
%    John Burkardt
%
%  Output:
%
%    string W: the boundary word.
%
%    integer P(2): the boundary word starting point.
%
  w = '111110500043355343123443';

  p = [ 0, 0 ];

  return
end

