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https://issues.apache.org/jira/browse/FOP-2536?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16792164#comment-16792164
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Jan Tošovský commented on FOP-2536:
-----------------------------------
I've attached FO file ( [^table-border.fo] ) used in the test case generated
without the new option ( [^table-border-standard.pdf] ) and with this option (
[^table-border-overpaint.pdf])
{code:xml}
<renderer mime="application/pdf">
<table-border-rendering-mode>overpaint</table-border-rendering-mode>
</renderer>
{code}
If this patch is accepted, the new option should be documented on the
configuration page (PDF Renderer section):
[https://xmlgraphics.apache.org/fop/trunk/configuration.html]
> [PATCH] Varying table border thickness in PDF output
> ----------------------------------------------------
>
> Key: FOP-2536
> URL: https://issues.apache.org/jira/browse/FOP-2536
> Project: FOP
> Issue Type: Improvement
> Components: renderer/pdf
> Reporter: Martin Leitner
> Priority: Major
> Attachments: Polygon.java, extended-patch-FOP-2536.patch,
> fop-2434-alternative.patch, patch-FOP-2434.diff, table-border-overpaint.pdf,
> table-border-standard.pdf, table-border.fo, tableBorders.fo,
> tableBorders_fop_2.0.pdf, tableBorders_fop_2.1.pdf,
> tableBorders_fop_2.1_AdobeReader_11.png, tableBorders_patched.pdf
>
>
> As already pointed out in a comment to the original issue, this is a problem
> with the PDF viewers. FOP generates the borders correctly. The viewers render
> border segments correctly when they are rectangles, but they make mistakes
> when the segments are more general polygons. In my patch, I am splitting the
> polygons into rectangles, covering as much of the polygon as possible, write
> the rectangles to the PDF, then write the remaining triangles.
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