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Posted to batik-users@xmlgraphics.apache.org by Manuel Strehl <ma...@physik.uni-regensburg.de> on 2007/04/21 13:27:11 UTC
Force missing-glyph display
Hi.
I'm using Batik 1.6. With the rasterizer I want to convert SVGs with
embedded fonts to PNGs. The SVGs are test cases for the fonts, so what
is intended is, that the glyphs, that actually are in the font, are
displayed, while all other letters are rendered using the
<missing-glyph/> of the font.
Batik's behaviour so far is unfortunately to replace the font family
instead of showing the missing-glyph.
Does anyone know, how to force Batik to use the <missing-glyph/>? Is
this a SVG topic, that is, is there an SVG property for this?
By the way: I tried the
-font-family ""
flag without success.
Best regards
Manuel
PS: Code snipped:
<svg>
<font>
<font-face font-family="test"/>
<missing-glyph>
<path d=""/>
</missing-glyph>
<glyph unicode="A" glyph-name="A">
<path d=""/>
</glyph>
</font>
<!-- should be rendered using glyph "A" -->
<text> A </text>
<!-- should be rendered using missing-glyph -->
<text> B </text>
</svg>
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Re: Force missing-glyph display
Posted by Manuel Strehl <ma...@physik.uni-regensburg.de>.
Thanks for the answer! I feared that it would be so...
Actually, I agree: in 99.9% of all cases you want to have shown
something useful, even if the glyph's missing. It's just that my task
hits the remaining case :-( So, if there's time left, I'll dive in the
batik source.
Best regards
Manuel
thomas.deweese@kodak.com schrieb:
> Hi Manuel,
>
> Manuel Strehl <ma...@physik.uni-regensburg.de> wrote on 04/21/2007
> 07:27:11 AM:
>
>
>> I'm using Batik 1.6. With the rasterizer I want to convert SVGs with
>> embedded fonts to PNGs. The SVGs are test cases for the fonts, so what
>> is intended is, that the glyphs, that actually are in the font, are
>> displayed, while all other letters are rendered using the
>> <missing-glyph/> of the font.
>>
>> Batik's behaviour so far is unfortunately to replace the font family
>> instead of showing the missing-glyph.
>>
>
> This is correct behavior for CSS. The only way to avoid this
> would be to modify the code, I think the change is fairly minor
> in batik.gvt.renderer.StrokingTextPainter at approx line 541
> is where Batik implements the fallback behavior to search available
> fonts on the system to render chars.
>
>
>> Does anyone know, how to force Batik to use the <missing-glyph/>? Is
>> this a SVG topic, that is, is there an SVG property for this?
>>
>
> No there is no SVG property for this, and CSS assumes that you
> would prefer to see the text rather than missing glyphs (a fairly
> reasonable assumption given the problem set SVG/CSS is trying
> to address).
>
>
>> By the way: I tried the
>> -font-family ""
>> flag without success.
>>
>> Best regards
>>
>> Manuel
>>
>>
>> PS: Code snipped:
>>
>> <svg>
>>
>> <font>
>> <font-face font-family="test"/>
>> <missing-glyph>
>> <path d=""/>
>> </missing-glyph>
>> <glyph unicode="A" glyph-name="A">
>> <path d=""/>
>> </glyph>
>> </font>
>>
>> <!-- should be rendered using glyph "A" -->
>> <text> A </text>
>>
>> <!-- should be rendered using missing-glyph -->
>> <text> B </text>
>>
>> </svg>
>>
>> ---------------------------------------------------------------------
>> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
>> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>>
>>
>
>
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> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
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>
>
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Re: Force missing-glyph display
Posted by th...@kodak.com.
Hi Manuel,
Manuel Strehl <ma...@physik.uni-regensburg.de> wrote on 04/21/2007
07:27:11 AM:
> I'm using Batik 1.6. With the rasterizer I want to convert SVGs with
> embedded fonts to PNGs. The SVGs are test cases for the fonts, so what
> is intended is, that the glyphs, that actually are in the font, are
> displayed, while all other letters are rendered using the
> <missing-glyph/> of the font.
>
> Batik's behaviour so far is unfortunately to replace the font family
> instead of showing the missing-glyph.
This is correct behavior for CSS. The only way to avoid this
would be to modify the code, I think the change is fairly minor
in batik.gvt.renderer.StrokingTextPainter at approx line 541
is where Batik implements the fallback behavior to search available
fonts on the system to render chars.
> Does anyone know, how to force Batik to use the <missing-glyph/>? Is
> this a SVG topic, that is, is there an SVG property for this?
No there is no SVG property for this, and CSS assumes that you
would prefer to see the text rather than missing glyphs (a fairly
reasonable assumption given the problem set SVG/CSS is trying
to address).
> By the way: I tried the
> -font-family ""
> flag without success.
>
> Best regards
>
> Manuel
>
>
> PS: Code snipped:
>
> <svg>
>
> <font>
> <font-face font-family="test"/>
> <missing-glyph>
> <path d=""/>
> </missing-glyph>
> <glyph unicode="A" glyph-name="A">
> <path d=""/>
> </glyph>
> </font>
>
> <!-- should be rendered using glyph "A" -->
> <text> A </text>
>
> <!-- should be rendered using missing-glyph -->
> <text> B </text>
>
> </svg>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
>
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