problem with dashed and dotted lines in png output

Question

Clemens 2011-10-11

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https://ww2.mathworks.cn/matlabcentral/answers/18007-problem-with-dashed-and-dotted-lines-in-png-output

Hi, I'm producing many plots as png for presentation (mainly because pdfs act a bit weird when inserted into ms office - and forget about ps...)

These have also very big lines.

I get the problem that in the final output the dashed lines look like sloppily dotted. The dotted look strangely semitransparent. Example

Overall the unprofessional look annoys me. So I was wondering - is there a better way to print such plots?

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Jan 2011-10-11

As usual I cannot see anything at tinypic.

Clemens 2011-10-12

<http://i51.tinypic.com/24dog8o.jpg direct link>

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Answer 1

Walter Roberson 2011-10-11

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https://ww2.mathworks.cn/matlabcentral/answers/18007-problem-with-dashed-and-dotted-lines-in-png-output#answer_24274

Possibly changing your figure Renderer property might help.

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Clemens 2011-10-12

should try that. Though - if I'm correct only opengl allows transparency (which i use frequently). Or is there something new around the block?

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Answer 2

Jan 2011-10-11

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https://ww2.mathworks.cn/matlabcentral/answers/18007-problem-with-dashed-and-dotted-lines-in-png-output#answer_24290

Embedding PS-files in Word documents look strange on the screen, but perfect when printed to paper or to PDFs. If the Painters renderer is used in Matlab, the exported PS-files have a vector-format, such that they are scalable. Only the dotted and dashed lines of the PS-files are ugly. But there are several functions in the FEX to fix this.