How to use text fuction in labeling

Question

Isa Duran 2014-5-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/131284-how-to-use-text-fuction-in-labeling

评论： Adam 2014-5-28

untitled.fig

Hi guys I have a small issue. I'm doing a subplot where each plot symbolize a direction (North,East,West,South) so I have created a subplot with 3 rows and 3 columns, with the middle one empty. Now I want to label North, West, East and South in my subplot. I have tried TEXT function but it seem to be unstable. I have attached the figure so you can see what I'm dealing with. Hope you can help guys.

for j=1:length(SR) %Number of fields
      figure
      for i=[1:4 6:9] %Creating row x collums for subplot
          for c=1:8 %Number of headings
             subplot(3,3,i)
             plot(omega,Sp_we(:,c,j))
             xlabel('\omega [rad/s]')
             ylabel('S(\omega)')
          end
      end 
      suptitle(['Wave spectrum for area ', num2str(SR(j))])    
      %text(2,20,'hello','FontSize',18)
      %text(1.5,1,'hello','FontSize',18)
      %text(1.5,1,'hello','FontSize',18)
      %text(1.5,1,'hello','FontSize',18)
end

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dpb 2014-5-27

I don't see anything about N, S, E, W???

What's the specific problem? text coordinates are axes-based for each axes; you need to specify the current figure on which you wish to write and the the position within that axes.

annotation objects work in global figure space if that's what you're looking for.

Isa Duran 2014-5-27

Yeah I know ! thats the issue mann.. I want to write North at the second plot, and East at the plot nr. 5 in the left side an so on... If you know what I mean.. Like a compass

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Answer 1

Adam 2014-5-27

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/131284-how-to-use-text-fuction-in-labeling#answer_138480

编辑：Adam 2014-5-27

在 MATLAB Online 中打开

Hi Isa, do you mean something like this? (just copy this code to the Matlab command line and press ENTER)

test_signal_N = randn(1,100); 
test_signal_S = randn(1,100); 
test_signal_E = randn(1,100); 
test_signal_W = randn(1,100); 
test_signal_NE = randn(1,100); 
test_signal_NW = randn(1,100); 
test_signal_SE = randn(1,100); 
test_signal_SW = randn(1,100); 
figure;
subplot(3,3,1); plot(test_signal_NW); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('North-West');
subplot(3,3,2); plot(test_signal_N); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('North');
subplot(3,3,3); plot(test_signal_NE); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('North-East');
subplot(3,3,4); plot(test_signal_W); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('West');
subplot(3,3,6); plot(test_signal_E); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('East');
subplot(3,3,7); plot(test_signal_SW); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('South-West');
subplot(3,3,8); plot(test_signal_S); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('South');
subplot(3,3,9); plot(test_signal_SE); xlabel('\omega [rad/s]'); ylabel('S(\omega)'); title('South-East');

Adam

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Isa Duran 2014-5-27

Okay :) But the script you sent me is also useful.. Do you know how to use text function? If you want the title to be at the bottom and in the left and right side?

thanks

Adam 2014-5-28

script.m

I have tried to figure out it... First solution is quite impractical, but it could work if you adjust it little bit -- mainly their absolut positions related to the size of figure. - see m-file attached

I´m sending you a second solution made by a GUI. Does it look like you imagine?

- see attached picture

Adam

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