Re: Suggestion: 'bbox-rendering' property

Thanks Amelia.


On 21 March 2015 at 08:53, Amelia Bellamy-Royds <
amelia.bellamy.royds@gmail.com> wrote:

> Paul:
>
> Cameron should be following up [1], but the main gist was that `fill` and
> `stroke` should become shorthand properties, and each one should have a
> sub-property in which you were able to specify the reference bounding box
> to use for each fill/stroke paint server.
>
> Key points of the debate:
>
> - Everyone liked the idea of having control over which bounding box to use
> for paint servers.
>
> - However, that control would have to be linked to specific uses of that
> paint server (e.g., as stroke paint vs as fill paint), so a single
> over-riding property doesn't seem appropriate.
>
> - Everyone agreed that we should try to maintain a consistent syntax with
> other properties that relate to object bounding boxes.
>
> - Currently, the masking spec [2] uses a separate property (mask-origin)
> to declare the reference box (with the option of declaring it in the mask
> shorthand property) while clipping paths only have a single, multi-part
> property.  So the "consistency" goal doesn't really lean one way or another.
>
> - Although no one brought it up on the call, the current SVG 2 syntax for
> stroke and fill [3] also allows you to specify a size for each paint
> server, but it is not currently described in terms of reference boxes.
>
> - Because SVG2 fill and stroke can both be a list of paint servers,
> authors should have the choice of specifying a single reference box for all
> of them or separate reference boxes for each.  The general CSS rules for
> "list" values and shorthand properties support this if there is a separate
> property.
>
> If you're interested in coming up with more use cases, suggestions and/or
> a full proposal, please do so.
>
> AmeliaBR
>
> [1]: ACTION-3772 http://www.w3.org/Graphics/SVG/WG/track/actions/3772
> [2]: http://dev.w3.org/fxtf/css-masking-1/
> [3]: https://svgwg.org/svg2-draft/painting.html#SpecifyingPaint
>
>
>
> On 20 March 2015 at 11:36, Paul LeBeau <paul.lebeau@gmail.com> wrote:
>
>> In the 11/12 March telecon there was an ACTION item to follow up on this
>> suggestion.  I haven't seen anything, so thought I'd do a reminder bump. :)
>>
>> I'm not sure I completely followed the gist of where the telecon
>> discussion was leading.  Can someone explain please?
>>
>> Paul
>>
>>
>> On 8 March 2015 at 20:41, Paul LeBeau <paul.lebeau@gmail.com> wrote:
>>
>>> The gettBBox() function now allows you to control which parts of the
>>> shape are included in the bounding box.  So I suggest that we expose that
>>> functionality as a property.
>>>
>>> bbox-rendering = "[fill] [stroke] [markers]"
>>>
>>> The purpose being is that it would affect the bbox used for
>>> "objectBoundingBox" units.  The name is a placeholder in lieu of something
>>> better.
>>>
>>> There was a discussion related to this concept in Feb 2014 wrt HTML
>>> clipping and masking, but AFAIK this hasn't been suggested in the SVG
>>> context. (maybe I am wrong?)
>>>
>>>
>>> So I submit the following for consideration:
>>>
>>> http://www.paullebeau.com/svg2/bbox-rendering/bbox-rendering.html
>>>
>>>
>>> Paul
>>>
>>>
>>
>