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Re: Proposed wording for 'how object transforms affect gradient rendering output'

From: Anthony Grasso <anthony.grasso@cisra.canon.com.au>
Date: Wed, 10 Feb 2010 15:17:55 +1100
Message-ID: <4B723373.8020304@cisra.canon.com.au>
To: Ken Stacey <ken@svgmaker.com>
CC: www-svg@w3.org
Hi Ken,

Ken Stacey wrote:
> Hi Anthony,
> 
> On 4/02/2010 2:58 PM, Anthony Grasso wrote:
>> The wording in the last sentence of the second last paragraph for 
>> gradientUnits attribute [4] should be reworded to:
>>
>> [[
>> When the object's bounding box is not square, the gradient normal 
>> which is initially perpendicular to the gradient vector within object 
>> bounding box space shall render non-perpendicular relative to the 
>> gradient vector in user space. This transformation is due to 
>> application of the non-uniform scaling transformation from bounding 
>> box space to user space.
>> ]]
> 
> "shall render non-perpendicular" is not always true.  If the gradient 
> vector is parallel to one of the axes of the bounding box, the gradient 
> normal will remain perpendicular.
> 

Right. The wording "shall render non-perpendicular" should be changed to "may 
render non-perpendicular". Then add your exact wording "If the gradient vector 
is parallel to one of the axes of the bounding box, the gradient normal will 
remain perpendicular" as a following sentence.

Cheers,

Anthony
Received on Wednesday, 10 February 2010 04:18:29 GMT

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