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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 08:16:28 -0800
Message-ID: <CAAWBYDAtWQG6v2p8AeO63=RYCUdqLR9QvGb1LQdeDYsqbLpYyA@mail.gmail.com>
To: Boris Zbarsky <bzbarsky@mit.edu>
Cc: www-style@w3.org
On Tue, Feb 28, 2012 at 8:07 AM, Tab Atkins Jr. <jackalmage@gmail.com> wrote:
> 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.

Yup, everyone does the obvious thing.  I've added the word
"proportional" in front of "concentric ellipses".  That sound good?

~TJ
Received on Tuesday, 28 February 2012 16:17:18 GMT

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