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Re: [Swftools-common] pdf2swf stroke cap style

From: Matthias Kramm
Subject: Re: [Swftools-common] pdf2swf stroke cap style
Date: Thu, 5 Feb 2009 13:34:09 +0100
User-agent: Mutt/1.5.6i

On Thu, Feb 05, 2009 at 02:02:32PM +0200, Jarno Kyttälä <address@hidden> wrote:
> Ok. I found out what's causing this problem. Stroke to polygon 
> conversion doesn't (and cannot) work correctly for closed paths, becouse 
> of perturbation, and direct == comparison of path start and end 
> coordinates floating point values.

Yes, that's a problem indeed.
libart's pertubation is a poor workaround for missing special-case
handling in the intersector code.
Replacing libart with a better working polygon library is in my queue.

> I didn't want to touch the libart sources directly, so I commented out 
> the vpath perturbation at gfxpoly.c's strokeToPoly, and closed paths 
> seemed to render correctly with the PDFs I tested it with.

You might run into problems for some more complex strokes w/o
pertubation- but it depends on your PDF content.



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