[cairo] Obtaining two parallel paths from a single curve

[archee@126]

Thank you! I think my question is more related to the topic of "parallet curve" and
the following links give out the solution:

http://xahlee.org/SpecialPlaneCurves_dir/Parallel_dir/parallel.html
and
http://en.wikipedia.org/wiki/Parallel_curve


----- Original Message ----- 
From: "Hung Nguyen Vu" <vuhung16plus+shape at gmail.com>
To: "archee at 126" <archee at 126.com>
Cc: <cairo at cairographics.org>
Sent: Tuesday, July 29, 2008 3:35 PMI
Subject: Re: [cairo] Obtaining two parallel paths from a single curve


> On Tue, Jul 29, 2008 at 3:49 PM, archee at 126 <archee at 126.com> wrote:
>> How to obtain two parallel paths from a single curve?
>> Say, these two parallel paths are N pixels away from each other.
> I am not sure but you can take a look at cairo's transformation tutorial,
> that is, copy it with a transformation matrix.
> http://cairographics.org/tutorial/#L1transforms
> 
> 
> -- 
> Best Regards,
> Nguyen Hung Vu ( Nguyễn Vũ Hưng )
> vuhung16plus{remove}@gmail.dot.com , YIM: vuhung16 , Skype: vuhung16dg
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