[cairo] Cairo Fill Rule - Alternate

[Adhir Garg]

Hi Simon,

Thanks for clarification. I think you may be right. I would try this.

REgards
Adhir
-----------------------------------------------------------
Adhir Kumar Garg
http://adhirgarg.blogspot.com
-----------------------------------------------------------


On Thu, Oct 25, 2012 at 1:51 PM, Simon Budig <simon at budig.de> wrote:
> Adhir Garg (adhir.garg at gmail.com) wrote:
>>
>> I looked at MSDN GDI functionality at
>> http://msdn.microsoft.com/en-us/library/windows/desktop/dd145080(v=vs.85).aspx
>> It lists out ALTERNATE
>> Selects alternate mode (fills the area between odd-numbered and
>> even-numbered polygon sides on each scan line).
>
> You misunderstood the description.
>
> ALTERNATE "fills the area between odd-numbered and even-numbered polygon
> sides on each scan line."
>
> Note the crucial word "scan line". That is a row of pixels. Within this
> rows the pixels switch between "filling" and "not filling" depending on
> the number of polygon sides crossed (even or odd).
>
> That is the same as CAIRO_FILL_RULE_EVEN_ODD.
>
> That the description explicitely mentions "five sided polygons" is
> misleading.
>
> Bye,
>         Simon
>
> --
>               simon at budig.de              http://simon.budig.de/
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