[jira] [Commented] (PDFBOX-4029) Rendering transparency groups (remaining files)

["savan patel (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/PDFBOX-4029?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16280627#comment-16280627 ] 

savan patel commented on PDFBOX-4029:
-------------------------------------

Was this code working for all the PDFs?

        if (flipTG)
        {
            graphics.translate(0, image.getHeight());
            graphics.scale(1, -1);
        }
        else
            graphics.translate(x * xScale, y * yScale);

> Rendering transparency groups (remaining files)
> -----------------------------------------------
>
>                 Key: PDFBOX-4029
>                 URL: https://issues.apache.org/jira/browse/PDFBOX-4029
>             Project: PDFBox
>          Issue Type: Sub-task
>          Components: Rendering
>    Affects Versions: 2.0.7, 2.0.8
>         Environment: Windows 10
>            Reporter: savan patel
>              Labels: patch
>         Attachments: PDFJS-5526-p11-13.pdf, PDFJS-5526-p13_reduced1.pdf, PageDrawer.java.patch, gs-bugzilla692217_reduced.pdf
>
>
> i have gone through the "[PDFBOX-3000] Transparency Group issues"...
> and there are some issues in pdfs that i have attached...
> Every time showTransparencyGroup() method is called the current graphics is translated by (x*xScale and y*yScale) which i assume is wrong.
> I think when transparencyGroup comes in pattern stream, then current graphics should not changed. as well as when patterns are nested then no need to change the parent graphics.
> i tried to fix it. i have attached the patch...



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