Plot a line over spectrogram

Question

Pegah Hosseini 2013-7-18

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评论： Pegah Hosseini 2014-1-6

I use the following code to plot a line over my spectrogram so that I show the onset time. But it sometimes plots the line over the spectrogram and sometimes the spectrogram over the line (the line is there from y=0 to y=10 then not there from y=10 to y=20 and then again it is there from y=20 to y=30). Any suggestions?

figure surf(x,y,z,'edgecolor','none'); axis tight; view(0,90); colorbar set(gca,'fontsize',14) hold on h=line([0 0],[y(1) y(end)],'color','m','Linestyle','-','LineWidth',2); uistack(h,'top')

I also tried:

h=get(gca,'Children'); set(gca,'Children',h(end:-1:1))

or

set(gca,'Children',h(1:end))

but no luck. All tries give exactly the same result.

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Answer 1

Jeremy 2014-1-6

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https://ww2.mathworks.cn/matlabcentral/answers/82466-plot-a-line-over-spectrogram#answer_120138

I've done this before, I believe the trick is to set the Z-value for your line so that is always above the spectrogram.

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Pegah Hosseini 2014-1-6

在 MATLAB Online 中打开

Although this question goes back to July, I am still happy to learn something new. Thanks alot for your help. It works perfectly. Example:

X=-2:10;Y=-2:10;Z=randn(13,13)*2;
surf(X,Y,Z,'edgecolor','none');
axis tight;
view(0,90);
hold on
zm=max(max(Z));
zmm=repmat(zm,1,length(Y(1):Y(end)));
h=plot3(zeros(1,length(zmm)),Y(1):Y(end),zmm,'-m','LineWidth',2);