function showmat(X,smooth,gridon)
%SHOWMAT     xxxx
%   [W V TXT] = FORMATVOCAB(VOC,D,K)
%   Lorem ipsum.

%X=X(end:-1:1,end:-1:1);
%X=X(:,end:-1:1);
z = ceil(max(max(X)));
[M N]=size(X);

if nargin==1
	gridon = 1;
	smooth = 0;
elseif nargin==2
	gridon = 1;
elseif nargin==3
else
	error('incorrect arguments');
end

if smooth
	Y=zeros(M+2,N+2);
	Y(2:(end-1),2:(end-1)) = X(end:-1:1,:);

	% copy first and last row
	Y(1,:)   = Y(2,:);
	Y(end,:) = Y(end-1,:);

	% copy first and last column
	Y(:,1) = Y(:,2);
	Y(:,end) = Y(:,end-1);
	surf(Y);

	axis([1.5 N+1.5 1.5 M+1.5])

	if gridon==1
		hold on;
		for i=0:N, plot3(i+[1.5 1.5],[1.5 M+1.5],[z z],'k-'); end
		for i=1:M+1, plot3([1.5 N+1.5],i+[.5 .5],[z z],'k-'); end
	end


	set(gca, 'XTick',1.5:.5:(N+1.5));
	set(gca, 'XLim',[1.5 N+1.5]);
	set(gca, 'YTick',1.5:.5:(M+1.5));
	set(gca, 'YLim',[1.5 M+1.5]);

	shading('interp');

else
	Y = X(end:-1:1,:);
	Y(end+1,end+1) = 0;
	surf(Y);

	set(gca, 'XTick',1:.5:(N+1));
	set(gca, 'XLim',[1 N+1]);
	set(gca, 'YTick',1:.5:(M+1));
	set(gca, 'YLim',[1 M+1]);


	if gridon==0
		shading('flat');
	end

end



xlabels={''};
for i=1:N
	%xlabels{i} = num2str(i);
	xlabels{2*i} = num2str(i);
	xlabels{2*i+1} = '';
end
set(gca,'XTickLabel',xlabels);

ylabels={''};
for i=1:M
	%ylabels{i} = num2str(M-i+1);
	ylabels{2*i} = num2str(M-i+1);
	ylabels{2*i+1} = '';
end
set(gca,'YTickLabel',ylabels)



view([0 90]);
colorbar;