Re: SVG Fonts inside of OpenType fonts? [Cross-post from www-font@w3.org]

Anyone know how iOS gets colored emoji?

On Thu, Jun 30, 2011 at 8:52 AM, Levantovsky, Vladimir <
Vladimir.Levantovsky@monotypeimaging.com> wrote:

> On Wednesday, June 29, 2011 9:33 PM Alex Danilo wrote:
> >
> > Also, Vladimir wrote: ""This is exactly where the weakness of the SVG
> > is - the glyphs inside
> > SVG fonts are identified by the <unicode> strings and while this can be
> > made to work for
> > one-to-one and many-to-one mappings - it doesn't work for one-to-many
> > mappings in a generic way."
> >
> > This is incorrect. If an implementation does SVG Full fonts, then the
> > content can contain <use> elements.
> >
>
> I am not sure what you mean by content. Would plain sequence of Unicode
> codepoints be considered a content?
>
> > So, the glyph geometries themselves can just sit in a <defs> or
> > wherever, and you could
> > even use their 'id' as your glyph index. Then the <glyph> elements in
> > the SVG font can
> > reference an arbitrary number of them. i.e. one-to-m, n-to-m and n-to-
> > one mappings
> > are all possible with the SVG font spec. as is, no changes required.
> >
> > It is a fact that an authoring tool is capable of outputting SVG font
> > outlines for glyphs
> > etc. as a single self contained file with no rendering ambiguity.
> > Furthermore, language
> > dependent rendering can be achieved with <switch> if you wish.
>
> I am sorry, I don't understand half of the above (I'm sure due to my
> limited knowledge of SVG Full fonts). Maybe a simple use case could help
> illustrate this workflow better:
> I have an SVG Full font and a string of Unicode characters that belong to a
> complex script where each character may be represented by one of many glyphs
> available in SVG font, and where a number of various character combinations
> may need to be replaced by a single glyph (ligature). I expect to get a
> readable text displayed as the result. What would have to happen for a text
> to be rendered correctly?
>
>
> Thank you,
> Vlad
>
> >
> > ASV had animating SVG Fonts ages ago as do I.
> >
> > I don't see that shoving SVG Fonts into an OpenType container does
> > anything  more
> > than force us to restrict them in arbitrary ways and so seems a bit
> > silly.
> >
> > If the existing SVG Font mechanism isn't sufficient for PDF->SVG
> > workflow (which
> > it isn't) then that's orthogonal. The glyph indice thing is a red
> > herring since the mappings
> > are all possible now and if the SVG Font is in the SVG file then the
> > rendering is
> > predictable, more so than PDF...
> >
> > XML compressed or not in a font file makes me queasy.
> >
> > Alex
> >
>
>
>