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I am using Mathematica 11.0 under Linux.

I want to export some plots in PNG format, with resolution higher than the notebook display resolution.

When I evaluate

Export["filename.png", Magnify[plot, 2],"PNG"]

this gives me a good resolution, but the frame ticks from the plots are gone after magnification. I want the output in PNG format as I might need this figures later to assemble with other existing figures as an inset.

Is there a smarter way to improve the image resolution?

I have tried increasing ImageSize, but it does not help. Also, I have tried setting ImageResoltion up to 2500, but that does not help either.

Update

When I make a plot (say a list plot), I always use Frame-> True and FrameTicks -> Automatic. The frame ticks are visible when I export the plot as PNG without any magnification. However, the frame ticks are not visible when I use

Export["filename.png", Magnify[plot, 2],"PNG"]
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  • $\begingroup$ I have no issues with your code. $\endgroup$
    – corey979
    Commented Dec 13, 2016 at 22:47
  • $\begingroup$ I know that you do not have issues with my code, but that is not my question. $\endgroup$
    – PythonNoob
    Commented Dec 13, 2016 at 22:57
  • $\begingroup$ In that case I have no idea what is your question. You say "frame ticks are gone", but I don't replicate this. $\endgroup$
    – corey979
    Commented Dec 13, 2016 at 23:02
  • $\begingroup$ When I make a plot (say ListPlot), I always use "Frame-> True" and "FrameTicks-> Automatic". These FrameTicks are visible if you export the plot as "PNG" without any magnification. However, the frame ticks are not visible when I use Export["filename.png", Magnify[plot, 2],"PNG"] $\endgroup$
    – PythonNoob
    Commented Dec 13, 2016 at 23:10
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    $\begingroup$ I'm voting to close this question as off-topic because with the information provided the issue cannot be reproduced. $\endgroup$
    – corey979
    Commented Dec 13, 2016 at 23:15

1 Answer 1

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The issue is real, but has nothing to do with Export. It is a problem with Magnification alone. Running V11.0.1 on OS X, I can reproduce the problem in my note book as follows:

 plot = Plot[Sin[x], {x, 0, 2 π}, Frame -> True]

Then

 Style[plot, Magnification -> 2]

screen

The frame ticks are not magnified along with the rest of plot. I consider this a bug.

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  • $\begingroup$ Thanks a lot; Yes, I guess its a magnification issue. However, in my case I do not see frame ticks at all (after exporting the magnified image) when I open the "PNG" in softwares like "gwenview". Anyways, the problem still persists. I need a high resolution plots in "PNG", which seems like an impossible task with Linux supporting Mathematica 11.0. $\endgroup$
    – PythonNoob
    Commented Dec 13, 2016 at 23:54

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