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Re: color-interpolation

From: Anthony Grasso <anthony.grasso@cisra.canon.com.au>
Date: Thu, 06 Aug 2009 15:41:04 +1000
Message-ID: <4A7A6CF0.8050206@cisra.canon.com.au>
To: public-svg-wg@w3.org
Hi Cameron,

Cameron McCormack wrote:
> Consider the following document:
> 
>   <svg xmlns="http://www.w3.org/2000/svg">
>     <rect width='200' height='100'/>
>     <g fill='white' fill-opacity='0.5'>
>       <rect width='100' height='100'/>
>       <rect x='100' width='100' height='100' color-interpolation='linearRGB'/>
>     </g>
>   </svg>
> 
> Should the right half of the rectangular region be a different colour
> from the left half?  IIUC, the use of ‘color-interpolation’ should
> affect how the right white <rect> is composited into the black <rect> in
> the background.
> 

Yes. The should be different colours because the 'color-interpolation' affects 
how the right <rect> is composited on to the background.

> Batik, Opera and Firefox all show a uniform #808080 colour in the
> rectangular region, which makes me wonder if I’ve used the
> ‘color-interpolation’ correctly.
> 

Opera 10 shows a uniform #7E7E7E for me.

To my understanding:
  - the left <rect> should be #7F7F7F
  - the right <rect> should be #BBBBBB


Cheers,

Anthony
Received on Thursday, 6 August 2009 05:41:51 GMT

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