How do I change the length of the bar in Legend axes, when a bar graph is plotted in MATLAB?

I have a bar graph and an associated legend with it. The legend axes has a bar in it. Is it possible to change the length of the bar in the Legend axes?

Answer 1

[MathWorks Support Team]

It is possible to change the length of bar in the Legend axes by changing the vertices of the patch object inside legend axes.

Please refer to the sample code below:

bar([2 1]);   % Plot the bar graph

[legend_h,object_h,plot_h,text_strings] = legend('a'); 

l = findall(legend_h, 'type', 'patch');  % Get the patch object inside the legend                                                                    % axes

v = get(l, 'vertices');   % Get the vertices of the patch

Length = v(3,1) - v(2,1) ;

v(3,1) = v(3,1) - Length/2; % Change the length to half

v(4,1) = v(4,1) - Length/2;

set(l, 'vertices', v);