Plotting scale bar with vertical margins

I wanna plot horizontal scale bars with vertical margins like the ones in figure below that present the observation radius and the safe distance. Any method that works is much appreciated.

Answer 1

[dpb]

X=[0.2,0.1]; Y=[0.9,0.75]; E=[0.15,0.05];        % positions, bar length about midpint
hEb=errorbar(X,Y,E,'horizontal','b.', 'linewidth',1.5,'capwidth',10);  % add scales
xlim([0 1]),ylim([0 1])      % just to set bounding limits on axis for viewing...
hTxt=text(X,Y,[{'Observation Radius'},{['Safe' char(10) 'Distance']}], ...
               'horizontalalignment','center','verticalalignment','top','fontsize',8);

results in following which is reasonable approximation. Draw the other pieces, then hold on to add the errorbars. The '.' linestyle stops drawing line between the points; otherwise would have to add separate error bars.

NB: Must use the char(10) for the line break; \n is not interpreted as newline by default TeX interpreter.

[Dan Mirea]

I'm getting the following error when I'm running your code. I guess it might be due to the Matlab version I'm using? Many thanks for your answer.

[dpb]

It was introduced between R2014b and R2016b as was 'horizontal' orientation...don't have in-between version installed to check.

You can, of course, always just draw the line segments directly. Wouldn't take much to make a little function for the purpose.

[Dan Mirea]

Thanks a lot man, I managed to make it work by deleting the capwidth bit. Cheers!