Changing annotation size or font

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Nadine Nassar 2020-11-15

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评论： Mario Malic 2020-11-15

采纳的回答： Mario Malic

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Hello,

I'm having trouble fixing the annotations on my graph. For the annotations at the throat and exit, the value isn't that clear. Is there any reason why it's like this, and if I can change it so it's more clear? I've attached the code and a picture of my plot.

Thanks in advance

    plot(i,r1(l), '.b'); hold on
    plot(i,r2(l),'.b'); hold on
    yline(0,'-.k');
    xline(0,'-.r');
    xline(-L/2,'-.r');
    xline(L,'-.r');
    title ('Plot of Nozzle Shape');
    xlabel('Axial distance from the throat (mm)');
    ylabel('Radius (mm)');
    
    txt1 = ['Throat, d=' num2str(2*min(r1)) 'mm'];
    text(0,1,txt1);
    
    txt2 = ['Inlet, d=' num2str(2*r1(1)) 'mm'];
    text(-L/2,1,txt2);
    
    txt3 = ['Exit, d=' num2str(2*r1(end)) 'mm'];
    text(0.85*L,1,txt3)

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采纳的回答

Mario Malic 2020-11-15

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/648568-changing-annotation-size-or-font#answer_545143

Is your piece of code in for loop?

Guessing that r1(1) and r1(end) are changing and there are many different texts on top of each other.

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Nadine Nassar 2020-11-15

Okay, i'll change it. I also tried your suggestion of not using a for loop and I got the same results, and realised the computational time was much faster this time. The text on the plot is also fixed now.

Thanks a lot for yor help

Mario Malic 2020-11-15