Use TTF font subtable (substitution) possible?
I am currently trying to use a specific glyph from a TTF font in a substitution table. 1. I learned such glyphs in OTF or TTF fonts can be used in layout programs such as InDesign by selecting them directly in the glyph selection 2. Trying to understand and having checked the documentation, this seems to have nothing to do with the font substitution described at http://xmlgraphics.apache.org/fop/1.1/fonts.html#substitution 3. Calling the glyph by HEX or Unicode is not possible since it's the same address So far I was trying to understand the mechanism of subtables (GSUB Lookups) at all, which led me to check the content of my font with fontforge. There I found all the corresponding tables under Element Font Info Lookups... Is it possible at all to use a glyph from a substitution table in Apache FOP at all or am I doing something completely wrong? I would love to have in FO the same ability as in my layout software using tabular digits... Thank's for your help ;) - I am running on fop-1.0 and fop-1.1 on Mac OS X with Java 1.7.0u21 - The font has been defined as font embed-url=fonts/DuraSans2012-Bold.ttf font-triplet name=DuraSans style=normal weight=bold/ /font - Very basic and simple selection of the font in fo... fo:block font-family=DuraSans.../fo:block - To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
Re: Use TTF font subtable (substitution) possible?
Support for Advanced Typographic Tables (GSUB, GPOS, etc) [1] was added in
1.1 to support complex scripts [2]. You can also use these same complex
script features with non complex scripts, provided the font supports the
desired features [3].
At present, the default features enabled for all scripts are:
GSUB: { 'ccmp', 'liga', 'locl' }
GPOS: { 'kern', 'mark', 'mkmk' }
It sounds like you want to may want to use the 'salt' (Stylistic
Alternatives), but I'm not certain since I don't know what features are in
the font you are trying to use. In any case, although I plumbed the CS code
to permit the higher layers of FO processing to specify something like the
CSS3 font-feature-settings property, I haven't yet taken any action to add
this property as an fox (extension namespace property) in FOP.
As a work around, if the Font happens to expose the glyph you want via a
Unicode PUA entry in the CMAP, then you can access it via that PUA code
point. There is no other way to specify a specific glyph in FOP. You could
also use SVG and convert the glyph into an SVG outline, though that's
probably over kill.
Regards,
Glenn
[1] http://www.microsoft.com/typography/otspec/ttochap1.htm
[2] http://xmlgraphics.apache.org/fop/trunk/complexscripts.html
[3] http://www.microsoft.com/typography/otspec/featuretags.htm
[4] http://www.w3.org/TR/css3-fonts/#font-feature-settings-prop
On Fri, May 10, 2013 at 11:05 AM, Frank Hirsch frank.hir...@mac.com wrote:
I am currently trying to use a specific glyph from a TTF font in a
substitution table.
1. I learned such glyphs in OTF or TTF fonts can be used in layout
programs such as InDesign by selecting them directly in the glyph selection
2. Trying to understand and having checked the documentation, this seems
to have nothing to do with the font substitution described at
http://xmlgraphics.apache.org/fop/1.1/fonts.html#substitution
3. Calling the glyph by HEX or Unicode is not possible since it's the same
address
So far I was trying to understand the mechanism of subtables (GSUB
Lookups) at all, which led me to check the content of my font with
fontforge.
There I found all the corresponding tables under Element Font Info
Lookups...
Is it possible at all to use a glyph from a substitution table in Apache
FOP at all or am I doing something completely wrong?
I would love to have in FO the same ability as in my layout software using
tabular digits...
Thank's for your help ;)
- I am running on fop-1.0 and fop-1.1 on Mac OS X with Java 1.7.0u21
- The font has been defined as
font embed-url=fonts/DuraSans2012-Bold.ttf
font-triplet name=DuraSans style=normal weight=bold/
/font
- Very basic and simple selection of the font in fo...
fo:block font-family=DuraSans.../fo:block
-
To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org
For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
Re: Use TTF font subtable (substitution) possible?
Thank's Glenn, that pretty much seems what I need. I will follow your
instructions trying to understand/evaluate the different options and see how
far I get with the given font :)
Best,
Frank
Von meinem iPhone gesendet
Am 10.05.2013 um 19:44 schrieb Glenn Adams gl...@skynav.com:
Support for Advanced Typographic Tables (GSUB, GPOS, etc) [1] was added in
1.1 to support complex scripts [2]. You can also use these same complex
script features with non complex scripts, provided the font supports the
desired features [3].
At present, the default features enabled for all scripts are:
GSUB: { 'ccmp', 'liga', 'locl' }
GPOS: { 'kern', 'mark', 'mkmk' }
It sounds like you want to may want to use the 'salt' (Stylistic
Alternatives), but I'm not certain since I don't know what features are in
the font you are trying to use. In any case, although I plumbed the CS code
to permit the higher layers of FO processing to specify something like the
CSS3 font-feature-settings property, I haven't yet taken any action to add
this property as an fox (extension namespace property) in FOP.
As a work around, if the Font happens to expose the glyph you want via a
Unicode PUA entry in the CMAP, then you can access it via that PUA code
point. There is no other way to specify a specific glyph in FOP. You could
also use SVG and convert the glyph into an SVG outline, though that's
probably over kill.
Regards,
Glenn
[1] http://www.microsoft.com/typography/otspec/ttochap1.htm
[2] http://xmlgraphics.apache.org/fop/trunk/complexscripts.html
[3] http://www.microsoft.com/typography/otspec/featuretags.htm
[4] http://www.w3.org/TR/css3-fonts/#font-feature-settings-prop
On Fri, May 10, 2013 at 11:05 AM, Frank Hirsch frank.hir...@mac.com wrote:
I am currently trying to use a specific glyph from a TTF font in a
substitution table.
1. I learned such glyphs in OTF or TTF fonts can be used in layout programs
such as InDesign by selecting them directly in the glyph selection
2. Trying to understand and having checked the documentation, this seems to
have nothing to do with the font substitution described at
http://xmlgraphics.apache.org/fop/1.1/fonts.html#substitution
3. Calling the glyph by HEX or Unicode is not possible since it's the same
address
So far I was trying to understand the mechanism of subtables (GSUB Lookups)
at all, which led me to check the content of my font with fontforge.
There I found all the corresponding tables under Element Font Info
Lookups...
Is it possible at all to use a glyph from a substitution table in Apache FOP
at all or am I doing something completely wrong?
I would love to have in FO the same ability as in my layout software using
tabular digits...
Thank's for your help ;)
- I am running on fop-1.0 and fop-1.1 on Mac OS X with Java 1.7.0u21
- The font has been defined as
font embed-url=fonts/DuraSans2012-Bold.ttf
font-triplet name=DuraSans style=normal weight=bold/
/font
- Very basic and simple selection of the font in fo...
fo:block font-family=DuraSans.../fo:block
-
To unsubscribe, e-mail: fop-users-unsubscr...@xmlgraphics.apache.org
For additional commands, e-mail: fop-users-h...@xmlgraphics.apache.org
