Legend looks very weird

Question

Alex Y 2020-1-24

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/501791-legend-looks-very-weird

评论： Guillaume 2020-1-27

Hello!

I'm having trouble plotting legend.

The items in the legend are overlaid on top of each other, and no matter what I try, they always look that way. Could anyone help me to make it look normal again, and tell me what is wrong with it?

Thank you so much in advance!!!

            % now draw
            figure;
            plot(tmid,Cer,'ko-',tmid,Put,'ro-',tmid,Caud,'bo-');
            xlabel('Time (min)'); ylabel('Radioactivity (Bq/mL)');
            legend('Cerebellum','Putamen','Caudate');
            ax = gca; ax.YAxis.Exponent = 0;
            cd(paths.figures)
            print('-dpdf','-bestfit',[ num2str(IDs(id)) num2str(d) '.pdf']);

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Guillaume 2020-1-24

Can you replace the initial figure call with

figure('Renderer', 'painters');

and see if that fixes the issue?

See also Resolving low-level graphics issues

Alex Y 2020-1-24

The problem still persists... I also tried specifying OGL implementation.

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Answer 1

Yair Altman 2020-1-27

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https://ww2.mathworks.cn/matlabcentral/answers/501791-legend-looks-very-weird#answer_412183

Run the following and check if you still see the same problem:

plot(1:3,1:3,'ko-', 1:3,2:4,'ro-', 1:3,3:5,'bo-');
legend('Cerebellum','Putamen','Caudate');

If you see the same problem it could mean that your legend function is corrupted. Run whos('legend','-all') and check if you have an unexpected version of the legend function on your Matlab path.

If you don't see the same problem, it might be a problem with your data in some strange way. In any case it will help narrow down the possibilities.

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Star Strider 2020-1-27

A similar problem (and apparent diagnosis but not cure) has been posted in Markers and text in legend appear misaligned. Considering that the plot is with respect to brain nuclei, EEGLAB could be the culprit.

Guillaume 2020-1-27

From the various questions we've seen over the years, it seems that EEGlab has a nasty habit of replacing essential matlab functions with their own, which ends up breaking matlab in all sort of interesting ways.

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