[cairo] Drawing a multicolor spline

[Andrea Canciani]

On Fri, Apr 27, 2012 at 9:45 AM, Andrea Canciani <ranma42 at gmail.com> wrote:
> On Wed, Apr 25, 2012 at 8:35 PM, Davide Calaminici <amiblit at gmail.com> wrote:
>> Hello,
>>
>> i'm trying to learn cairo graphics doing some test here and there.
>>
>> I want to draw a spline or bezier, simulating a Windows screen saver like
>> Mistify or Ribbons.
>> Anyone have a simple sample code in c for this?

Some sample code which might be somewhat similar to Mystify is attached.

Andrea

>
> Some sample code on how to draw Bezier curves can be found here:
> http://cairographics.org/samples/curve_to/
>
> If you want the spline to be multicolor, you will need to draw it with
> a source that is not solid black, but some kind of pattern.
>
>
> A different approach might be that of painting a gradient mesh pattern
> (possibly without even using a mask).
> Sample code can be found here:
> http://cairographics.org/manual/cairo-cairo-pattern-t.html#cairo-pattern-create-mesh
>
> Andrea
>
>>
>> Thank you very much
>>
>> --
>> cairo mailing list
>> cairo at cairographics.org
>> http://lists.cairographics.org/mailman/listinfo/cairo
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