%
% Homework #5: Advanced Graphics & Plotting in Matlab
% Sample Solution
%

% Start fresh
clear all;

% Define equations
t = [ -8*pi/3 : .01 : 8*pi/3 ];
x = cos(t);
y = exp(-t).*cos(10*t);

% Do the plots and turn on the grid for later...
h1 = subplot(211);			% Top plot, solid line in blue
l = plot(t, x, 'b-');			% We'll use this line object later
xlabel('\omega');			% Label X & Y while we're here...
ylabel('y = cos(\omega)');
grid on;

h2 = subplot(212);			% Bottom plot, dashed line in red
plot(t, y, 'r--');
xlabel('\omega');			% Label X & Y while we're here...
ylabel('y = e^{\omega}cos(10\omega)');
grid on;
pause

% Label the figure *window*.
% NOTE: The figure window is not the same as the figure itself. The
%       figure itself should be title()'ed with a meaningful
%       description of the graph.
set(gcf, 'Name', 'Matt Lab');		% Print my name
set(gcf, 'NumberTitle', 'off');	% Don't print the Figure #.
pause

% Change axis color
set(h1, 'XColor', 'b', ...		% Blue axis on the top
        'YColor', 'b');
set(h2, 'XColor', 'r', ...		% Red axis on the bottom
        'YColor', 'r');
pause     
     
% Set backgroup color
set(h1, 'Color', 'r');			% Red background on the top     
set(h2, 'Color', 'b');			% Blue background on the bottom	
pause

% Set grid styles to dots. This is the default value.
set(h1, 'GridLineStyle', ':');
set(h2, 'GridLineStyle', ':');
pause

% Set up axis labels. Been there; done that. See above.

% Now set up the font...
set(h1, 'FontName', 'Helvetica', 'FontSize', 14);
set(h2, 'FontName', 'Helvetica', 'FontSize', 14);
pause

% Set line styles... Did that in the original plot() statement.

% Set line thickness...
set(h1, 'Units', 'Points', 'LineWidth', 3);
set(h2, 'Units', 'Points', 'LineWidth', 3);
pause

% Change the blue line to white (need the line object l for h1)
gca=h1;
set(l, 'Color', 'white');