https://issues.apache.org/ooo/show_bug.cgi?id=124060

Armin Le Grand <[email protected]> changed:

           What    |Removed                     |Added
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                 CC|                            |[email protected]
           Assignee|[email protected] |[email protected]
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--- Comment #4 from Armin Le Grand <[email protected]> ---
It's not white lines, but anti-aliasing gaps. These happen when the format the
user/exporter is based on uses Metafiles, but without using the "enhanced
(hacked)' data included there e.g. for gradients. If this data is not used but
the original Metafile data, it contains a pretty wild (from nowadays view)
combination of X-ORed paints of polygons that was used in former days to render
that gradients. When that X-ORed paints get executed 1:1 they generate that
errors since that painitg technique of a gradient is of course not capable of
AA.
With PDF it's similar; the adobe reader is bad with blending AAed stacked
polygons above each other; the representation in the PDF is in principle
correct (AFAIK).
Grepping, this needs work in the future. Best would be to change the exporters
to primitive renderers, though...

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