Legend position according to axes

Question

Timon Rayis 2020-3-10

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https://ww2.mathworks.cn/matlabcentral/answers/510044-legend-position-according-to-axes

评论： Timon Rayis 2020-3-10

Hello I want to reposition the legend from the start of axes (not in the middle) like this

Can we do this? Here is my code

x = 1:10; y1 = 4*x; y2 = 3*x + 5; figure(1), plot(x,y1,'b',x,y2,'r')
legend('Line 1','Line 2','Location','NorthOutside','Orientation','horizontal','Box','off')

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Answer 1

Jakob B. Nielsen 2020-3-10

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You can specify the position of your legend yourself with coordinates, rather than using a predetermined location. First two coordinates are the x and y start, second coordinates are the x-wise length and y-wise height of the legend. For example:

x = 1:10; y1 = 4*x; y2 = 3*x + 5; figure(1), plot(x,y1,'b',x,y2,'r')
legend('Line 1','Line 2','Position',[0.2 0.92 0.15 0.0869]);
legend('Orientation','horizontal')
legend('boxoff')

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Jakob B. Nielsen 2020-3-10

编辑：Jakob B. Nielsen 2020-3-10

Weird! It seems the properties changes simply from the maximising of the window. I dont know why that is the case...

if you put in

x = 1:10; y1 = 4*x; y2 = 3*x + 5; 
ax=axes;
plot(ax,x,y1,'b',x,y2,'r')
lg=legend('Line 1','Line 2','Position',[0.2 0.92 0.15 0.0869],'Orientation','horizontal','Box','off');

and then inspect lg, it has Position: [0.1250 0.9396 0.3000 0.0476] (which is not even the position we specify)... But then when maximising the window and doing nothing else, lg now has Position: [0.2313 0.9542 0.0875 0.0185].

I dont know... If you need the plot maximised, then plot it maximised to begin with and set the legend position accordingly, I guess?

Timon Rayis 2020-3-10