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Posted to dev@pdfbox.apache.org by "Tilman Hausherr (JIRA)" <ji...@apache.org> on 2019/02/19 18:48:00 UTC
[jira] [Updated] (PDFBOX-4468) Incorrect tiling pattern rendering
when step smaller than bbox
[ https://issues.apache.org/jira/browse/PDFBOX-4468?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Tilman Hausherr updated PDFBOX-4468:
------------------------------------
Attachment: patterns-Xstep5.pdf
patterns-Xstep10.pdf
patterns-Xstep7.pdf
patterns-Xstep-7.pdf
> Incorrect tiling pattern rendering when step smaller than bbox
> --------------------------------------------------------------
>
> Key: PDFBOX-4468
> URL: https://issues.apache.org/jira/browse/PDFBOX-4468
> Project: PDFBox
> Issue Type: Bug
> Components: Rendering
> Affects Versions: 2.0.13
> Reporter: Tilman Hausherr
> Priority: Major
> Labels: Pattern
> Attachments: PDFJS-9770-slow.pdf, gs-bugzilla690487.pdf, patterns-Xstep-7.pdf, patterns-Xstep10.pdf, patterns-Xstep5.pdf, patterns-Xstep7.pdf
>
>
> From a remark by Rob Wu in the PDF.js PR, I noticed that we're not doing tiling patterns correctly when the XStep or YStep is smaller than bounding box width / height. We're doing exactly what he told not to do.
> {quote}Base pattern:
> \/
> Expected rendering of repeated pattern (recall xstep = half of width):
> \XXXX
> Actual rendering if truncating pattern width to xstep:
> \\\\\
> {quote}
>
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