%CHESSBOARD  Function that defines a chessboard.
%
% Thorsten Hansen  2008-04-11

function cb = chessboard
white_field = ones(4); 
black_field = zeros(4); 
bw2 = [white_field black_field; black_field white_field]; 
cb = repmat(bw2, 4, 4);  
 

% show the board
imshow(cb)
% use imagesc(cb) if you do not have the Image Toolbox

h = title('chessboard');
set(h, 'Fontsize', 20)

% with axes ticks
axis on
box off

set(gca, 'Fontsize', 20)
tickpos = 2.5:4:8*4+2.5; % where to put the ticks, x- and y-ticks
set(gca, 'XTick', tickpos);

%set(gca, 'XTickLabel', ['a'; 'b'; 'c'; 'd'; 'e'; 'f'; 'g'; 'h'])
% use char and double instead:
set(gca, 'XTickLabel', char([double('a'):double('a')+7]'))
set(gca, 'YTick', tickpos);
set(gca, 'YTickLabel', [8:-1:1]);
set(gca, 'YAxisLocation', 'right');