Export figure as EPS or PDF does not properly render some dotted lines; they become solid lines

Question

Turner Montgomery 2015-9-2

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https://ww2.mathworks.cn/matlabcentral/answers/239173-export-figure-as-eps-or-pdf-does-not-properly-render-some-dotted-lines-they-become-solid-lines

评论： Shyamprasad Natarajan Raja 2023-9-20

When exporting a figure containing three plots to EPS or PDF format, the line styles on the third plot only do not render properly. The dotted lines become solid (see first image).

When exporting to a raster format, there is no distortion (see second image).

Does anyone know a fix for this? I much prefer a vector format. It seems weird that the first two plots look fine.

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Answer 1

Thomas Lindvall 2022-2-28

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https://ww2.mathworks.cn/matlabcentral/answers/239173-export-figure-as-eps-or-pdf-does-not-properly-render-some-dotted-lines-they-become-solid-lines#answer_906125

export_fig solved the problem for me:

https://se.mathworks.com/matlabcentral/fileexchange/23629-export_fig

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Shyamprasad Natarajan Raja 2023-9-20

I had to create a PDF file from a figure with many data points. Plotting worked fine on matlab, but using exportgraphics() took a terribly long time. export_fig was almost instantaneous and produced the expected output. Great recommendation!

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Answer 2

Georges Chahine 2022-4-29

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https://ww2.mathworks.cn/matlabcentral/answers/239173-export-figure-as-eps-or-pdf-does-not-properly-render-some-dotted-lines-they-become-solid-lines#answer_953820

编辑：Georges Chahine 2022-4-29

I was able to solve it by downsampling the data. Keep downsampling till you no longer have the issue. Example on 50% downsampling rows: B=A(1:2:end,:)