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Re: [css3-images] Probably Editorial: radial-gradient() and concentric ellipses

From: Tab Atkins Jr. <jackalmage@gmail.com>
Date: Tue, 28 Feb 2012 08:07:42 -0800
Message-ID: <CAAWBYDCDPrX9R5g8yRFLoY02qxkh4XA9acZ9W21g5Qk4mfyN_A@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: www-style@w3.org
On Tue, Feb 28, 2012 at 5:12 AM, Boris Zbarsky <bzbarsky@mit.edu> wrote:
> On 2/28/12 3:01 AM, Kang-Hao (Kenny) Lu wrote:
>>
>> I am not sure this is well-defined as I don't know if concentric
>> ellipses are by definition necessarily having the same eccentricity.
>
> They're not.
>
>
>> I don't mean to use www-style as a Math forum but oddly enough I
>> couldn't find the definition of "concentric ellipses" on Google.
>
> When people say "concentric ellipses" they seem to mean non-intersecting
> ellipses with shared center and major axes pointing in the same direction.
>  Or something.  There is no commonly accepted definition I know of, other
> than "I know it when I see it".

Huh.  I thought there was a simple definition (linearly scale both
axises).  I'll do some quick testing to see what impls do and ensure
it matches what I assume, then specify that more clearly.

~TJ
Received on Tuesday, 28 February 2012 16:08:34 GMT

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