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https://issues.apache.org/jira/browse/PDFBOX-615?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Tilman Hausherr updated PDFBOX-615:
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Comment: was deleted
(was: My change from yesterday doesn't work for the ch14.pdf file, because 1)
the color data for the triangles is partially incomplete, 2) my code works for
pattern shading, not for shfill. I'll use a different strategy which will still
use most of the new code.)
> shfill operator needs implementation
> ------------------------------------
>
> Key: PDFBOX-615
> URL: https://issues.apache.org/jira/browse/PDFBOX-615
> Project: PDFBox
> Issue Type: New Feature
> Components: PDModel
> Reporter: Daniel Wilson
> Assignee: Daniel Wilson
> Attachments: Centerplan.pdf, DECAHED.pdf, Type4ShadingContext.java,
> Type4ShadingPaint.java, axial-input-after.png, axial-input-before.png,
> axial-input.pdf, bugzilla843488.pdf, bugzilla843488.pdf-1.png,
> color_gradient.pdf, color_gradient.pdf-1.png, decahed.pdf-1.png,
> decahed.pdf-1.png, input.pdf, input1.png, pdfbox-1.8.patch, pdfbox.patch,
> pslib-shading.pdf, radial-input-after.png, radial-input-before.png,
> radial-input.pdf, shading_pattern.pdf, shading_pattern.pdf-2.png,
> trityp4.pdf-1.png
>
>
> I have a PDF file (for which I do not yet have release permission) that uses
> the "sh" operator, equivalent to PostScript's shfill (per PDF spec 1.7 page
> 987).
> Adobe provides implementation guidance in a 78-page document at
> http://www.adobe.com/devnet/postscript/pdfs/TN5600.SmoothShading.pdf#17
> I will be trying to add this functionality this week, but if anyone has
> hints, suggestions, etc. they are most certainly welcome!
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