[Libreoffice-bugs] [Bug 122436] Writer can't display or export eps with preview correctly

[bugzilla-daemon at bugs.documentfoundation.org]

https://bugs.documentfoundation.org/show_bug.cgi?id=122436

V Stuart Foote <vstuart.foote at utsa.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|bibisectRequest, regression |
             Status|NEW                         |RESOLVED
                 CC|                            |michael.meeks at collabora.com
                   |                            |, quikee at gmail.com,
                   |                            |vstuart.foote at utsa.edu
         Resolution|---                         |NOTOURBUG
           See Also|                            |https://bugs.documentfounda
                   |                            |tion.org/show_bug.cgi?id=67
                   |                            |464
                 OS|Linux (All)                 |All

--- Comment #16 from V Stuart Foote <vstuart.foote at utsa.edu> ---
This is not a regression, bibisect is not needed.

All issues folks are having with EPS rendering is because of the freeware
pstoedit installed to their distro. And while Windows users can upgrade to use
the paid pstoedit EMF plugin [1], or in general remove pstoedit from your os
and to not work with EPS as vector.

Using pstoedit (without the paid EMF plugin only available for Windows builds)
will render EPS vector graphcs to canvas as EMF, but pstoedit will reduce the
verticies of the paths pulled from the EPS degrading the resulting EMF import.
While on export of vector data back to EPS, the reduced vertices will be
apparent compared to the original source EPS.

Fortunately absent the pstoedit conversion [2], the EPS images will be rendered
to canvas with ghostscript [3] or Imagemagik 'convert'[4] (which depends on a
configured ghostscript for ps interpretation).

Over on Inkscape, a ghostscript installation with its .\lib on syspath routes
conversion to ps2pdf--and from there the PDF is rendered by cairo/popler to
canvas as vector.

Folks can use ps2pdf externally to convert from EPS to EMF or even SVG, but it
is fiddly.

See also bug 67464 is open enhancement to provide a LibreOffice internal
support for ps/eps rendering of vector graphics. Including possibility of the
same ps2pdf filter that is used on Inkscape.

=-ref-=
[1] $50US shareware fee collected at
https://secure.shareit.com/shareit/product.html?productid=103496
[2]
https://opengrok.libreoffice.org/xref/core/filter/source/graphicfilter/ieps/ieps.cxx?#200
[3]
https://opengrok.libreoffice.org/xref/core/filter/source/graphicfilter/ieps/ieps.cxx?#370
[4]
https://opengrok.libreoffice.org/xref/core/filter/source/graphicfilter/ieps/ieps.cxx?#348

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