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https://issues.apache.org/jira/browse/PDFBOX-1094?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14241738#comment-14241738
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Tilman Hausherr commented on PDFBOX-1094:
-----------------------------------------
I used the formula near the end of page 5.
x' = 0 * 1 + 15.7 * 1 + 792 = 807.7
y' = -15.7 * 1 + 0 * 1 = 15.7
The formula in the PDF spec looks different,
x' = 0 * 1 + -15.7 * 1 + 792 = 776,3
y' = -15.7 * 1 + 0 * 1 = -15.7
Btw:
- the pre-regression version [ https://svn.apache.org/r1633472 ] can render the
file PDFBOX-1265-PoolCompPDFA.pdf correctly. At that time, I made no special
handling for 0 "scale" values, I just took care that scale and shear values
were used as a whole.
- the Java AffineTransform also brings a matrix with 0 "scale" values when
asking for a 270° rotation.
> Pattern colorspace support
> --------------------------
>
> Key: PDFBOX-1094
> URL: https://issues.apache.org/jira/browse/PDFBOX-1094
> Project: PDFBox
> Issue Type: Improvement
> Components: Rendering
> Affects Versions: 1.6.0, 2.0.0
> Reporter: Andreas Lehmkühler
> Priority: Blocker
> Fix For: 2.0.0
>
> Attachments: ColoredTilingPaint.patch, PATTYP1.pdf, PATTYP2.pdf,
> PDF32000_2008_pg737.pdf, PDFBOX-1094-065514-XStep32767.pdf,
> PDFBOX-1094-094730.pdf, PDFBOX-1094-096213-p18.pdf,
> PDFBOX-1094-118358-Step-32767.pdf, PDFBOX-1094-PDFBOX-269.pdf,
> PDFBOX-1094-tiling_pattern.pdf-1-broken-tiles-with-ceil.png,
> PDFBOX-1861-tracemonkey13.png, PDFStreamEngine.patch, PageDrawer.patch,
> _pdfbox-1094-tiling_pattern.pdf-1-blurry.png, bugzilla8677511.jpg,
> gs-bugzilla688728.pdf, gs-bugzilla691715.pdf, gs-bugzilla692152.pdf,
> gs-bugzilla692503.ai, gs-bugzilla693653.pdf, gs-bugzilla694385.pdf,
> jagpdf_doc_patterns.pdf, jagpdf_doc_patterns.pdf-1.png,
> pdfbox-1094-pdf32000_2008_pg737.pdf-1.png,
> pdfbox-1094-pdf32000_2008_pg737.pdf-1.png, pdfbox-1094-pdfbox-269.pdf-2.png,
> pdfbox-1094-tiling_pattern.pdf-1.png, pdfbox-1094-tiling_pattern.pdf-1.png,
> pdfbox-1094-tiling_pattern.pdf-1.png, pdfbox-1861-tracemonkey.pdf-13.png,
> pdfbox-1861-tracemonkey.pdf-13.png, tiling_pattern.pdf,
> v2_tiling_patterns_v2.patch
>
>
> PDFBox doesn't support PDPattern colorspaces
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