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Re: pattern artifacts in pdf and eps

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Don wrote:

> I use the filledcurves option in plot with gnuplot 4.4.3 for windows
> 32 under windows XP. As term I use eps or pdf (also tried pdfcairo) as
> I want to include figures into pdflatex. I want to include the figures
> in a paper, so they should be neat.
> On screen the resultant graphics show strong artifacts, namely white
> or black lines along edges of "tiles".
> I found in some forums the hint that this are probably anti-aliasing
> artifacts of the ps-viewer (gv 3.6.5 under cygwin) or the pdf-viewer
> (tried acrobat reader 9.3, foxit 3.2, sumatra 1.8). Using gv with -
> noantialias nearly removes the artifacts on screen, although I can
> still make out the white lines. They are also present on the printout
> (on a Kyocera PCL XL with 600 dpi).

At a guess, the output to your Kyocera is prepared by ghostscript.
So it's the same ghostscript anti-aliasing bug.

> With pdf output things are even worse.

The pattern-fill in pdfcairo is not entirely satisfactory, again due to
flaws in an external tool.  It has gotten better in libcairo 1.10, but
still could be improved.  There will be a partial workaround in gnuplot
version 4.4.4

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pattern artifacts in pdf and eps Don <dondonnan@googlemail.com> - 2011-10-13 03:01 -0700
  Re: pattern artifacts in pdf and eps sfeam <sfeam@users.sourceforge.net> - 2011-10-13 11:07 -0700
    Re: pattern artifacts in pdf and eps Don <dondonnan@googlemail.com> - 2011-10-17 00:58 -0700

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