[cairo] libpixman - libpixregion, libic and slim merged; cairo built with it

[Nathan Hurst]

Bill Spitzak wrote:

>On Tuesday 09 December 2003 04:38 pm, Nathan Hurst wrote:
>
>  
>
>>Why would you want
>>a rectangle to include a winding number?
>>    
>>
>
>Under the non-zero-winding rule, a path made up of two intersecting 
>rectangles of opposite winding is a different shape than if the rectangles 
>had the same winding.
>
>Opposite winding would produce an xor, while same winding produces a union.
>
>I think we want to allow rectangles to be added to the current path and 
>represented compactly. Otherwise I'm not sure if this is going to be used.
>  
>
Are we talking about axis aligned rectangles, or arbitrary rectangles?  
I don't think adding axis aligned rectangles to a path is a good idea - 
for a start you can't transform them in any way besides scale, rotate 90 
and translate.  Axis aligned rectangles are useful for working with 
raster images, which is what I thought we were talking about?  Perhaps 
the word rectangle should be used when referring to the transformable 
shape, and box when referring to the axis aligned raster region?

njh