function hexiamond_vertex_ij_test ( )

%*****************************************************************************80
%
%% hexiamond_vertex_ij_test tests hexiamond_vertex_ij().
%
%  Licensing:
%
%    This code is distributed under the MIT license.
%
%  Modified:
%
%    07 September 2020
%
%  Author:
%
%    John Burkardt
%
  timestamp ( );
  fprintf ( 1, '\n' );
  fprintf ( 1, 'hexiamond_vertex_ij_test\n' );
  fprintf ( 1, '  MATLAB/Octave version %s\n', version ( ) );
  fprintf ( 1, '  hexiamond_vertex_ij() returns the IJ\n' );
  fprintf ( 1, '  parallelogram point coordinates of the vertices\n' );
  fprintf ( 1, '  that bound a hexiamond, given its index between 1 and 12.\n' );

  for k = 1 : 12
    name = hexiamond_name ( k );
    v = hexiamond_vertex_ij ( k );
    polyiamond_vertex_print ( v, name );
  end
%
%  Terminate.
%
  fprintf ( 1, '\n' );
  fprintf ( 1, 'hexiamond_vertex_ij_test\n' );
  fprintf ( 1, '  Normal end of execution.\n' );
  timestamp ( );

  return
end
