Matlab. Place the legend off-site
I have the following code
T = [0:1:30]
a = [5:1:35]; a2 = [0:1:30];
b = [-4:1:26]; b2 = [12:1:42];
c = [16:1:46]; c2 = [15:1:45];
d = [2:1:32]; d2 = [-5:1:25];
figure(1)
title('Time histories of output variables (measured vs estimated)')
subplot(411),plot(T,a, T,a2,'r'); grid; ylabel('p (°/s)');
subplot(412),plot(T,b, T,b2,'r'); grid; ylabel('r (°/s)');
subplot(413),plot(T,c, T,c2,'r'); grid; ylabel('phi (º)');
subplot(414),plot(T,d, T,d2,'r'); grid; ylabel('ay (m/s2)');
legend('measured','estimated','Location','bestoutside')
xlabel('Time [s]');
What generates the following graph
I would like the legend to be out of the plot and they all stay at their normal size. (So the legend should be in one of the red circles. Any solutions?
You can add another subplot to act as an empty region to only hold legend , with axis visibility off and nan
values for 'YData'
detuned lines so they don't display:
figure(1);
hSub = subplot(511); plot(1, nan, 1, nan, 'r'); set(hSub, 'Visible', 'off');
subplot(512); plot(T, a, T, a2, 'r'); grid; ylabel('p (°/s)');
subplot(513); plot(T, b, T, b2, 'r'); grid; ylabel('r (°/s)');
subplot(514); plot(T, c, T, c2, 'r'); grid; ylabel('phi (º)');
subplot(515); plot(T, d, T, d2, 'r'); grid; ylabel('ay (m/s2)');
xlabel('Time [s]');
legend(hSub, 'measured', 'estimated', 'Location', 'east');
And here's the result:
Try to get the positions of the positions using the method get
and manually change the positions by doing some arithmetic. For example,
T = [0:1:30];
a = [5:1:35]; a2 = [0:1:30];
b = [-4:1:26]; b2 = [12:1:42];
c = [16:1:46]; c2 = [15:1:45];
d = [2:1:32]; d2 = [-5:1:25];
figure(1)
title('Time histories of output variables (measured vs estimated)')
f1 = subplot(411);plot(T,a, T,a2,'r'); grid; ylabel('p (°/s)');
pos_f1 = get(f1,'Position');
hl = legend('measured','estimated','Location','bestoutside');
pos_hl = get(hl, 'Position');
subplot(412),plot(T,b, T,b2,'r'); grid; ylabel('r (°/s)');
subplot(413),plot(T,c, T,c2,'r'); grid; ylabel('phi (º)');
subplot(414),plot(T,d, T,d2,'r'); grid; ylabel('ay (m/s2)');
set(hl,'Position',[pos_f1(1)+pos_f1(3)-pos_hl(3)...
pos_hl(2)+pos_hl(4)+0.015...
pos_hl(3)...
0.5*pos_hl(4)]);
This should give you: 
You may have to play around with the parameters on the last line, but you get the idea.