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Posted to batik-users@xmlgraphics.apache.org by Thomas <tp...@yahoo.fr> on 2006/08/23 15:23:39 UTC
Re : Re : Issue when transcoding Arabic chars
Hi Thomas,
Following your advices we've moved the attributes from the <tspan> tag to the <text> one:
<text id="boxtext_ar_1" y="30" x="80" text-anchor="middle" font-size="8pt" font-style="normal" font-family="Traditional Arabic" dy="27">
<tspan>[some arabic text]</tspan>
</text>
Unfortunately we still can see the same output as provided earlier in my email.
So we also removed the <tspan> tag:
<text id="boxtext_ar_1" y="30" x="80" text-anchor="middle" font-size="8pt" font-style="normal" font-family="Traditional Arabic" dy="27">[some arabic text]</text>
And we still get the same output.
Our batik version is 1.6.
Any clue?
Thanks,
T.
----- Message d'origine ----
De : thomas.deweese@kodak.com
À : batik-users@xmlgraphics.apache.org
Cc : batik-users@xmlgraphics.apache.org
Envoyé le : Mercredi, 23 Août 2006, 12h32mn 18s
Objet : Re : Issue when transcoding Arabic chars
Hi Thomas,
Thomas <tp...@yahoo.fr> wrote on 08/22/2006 08:19:28 AM:
> Please find attached a piece of SVG that contain some rect tags
> and the text (svgbox.txt)[...] By the way I've got the exact
> same rendering issue with Adobe SVG Plugin in IE, works very
> well with Firefox.
So the problem is the tspan. We don't handle the dy
properly with the Right to Left rendering. If you move
the tspan attributes to the text element it will work
properly.
<text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
font-size="8pt" font-style="normal" font-family="Traditional
Arabic">
<tspan x="80" dy="27">[some arabic text]</tspan>
</text>
> ----- Message d'origine ----
> De : thomas.deweese@kodak.com
> À : batik-users@xmlgraphics.apache.org
> Cc : batik-users@xmlgraphics.apache.org
> Envoyé le : Mardi, 22 Août 2006, 12h35mn 02s
> Objet : Re: Issue when transcoding Arabic chars
> Hi Thomas,
>
> Thomas <tp...@yahoo.fr> wrote on 08/22/2006 06:08:10 AM:
>
> > We've built a simple servlet to transform SVG to JPG
>
> > It works very well with all kind of characters but for Arabic
characters
> it
> > does not display correctly.
> > The first character on the left is displayed well above the others.
> >
> > Is this a known issue?
>
> Can you provide an example?
>
> I am not aware of any known issues with Arabic text
> handling. In fact I've heard that Batik's rendering of
> Arabic is good. However, Arabic is an extremely difficult
> script to layout well.
>
> This may also depend on the font used (Batik
> implements Arabic glyph replacement so the first
> and last glyphs in each word are replaced, it is
> possible that the 'base' font doesn't include the
> initial/final forms of the glyphs so Batik might
> jump to another font which could account for the
> problem).
>
> > Does a better algorithm exist?
>
> undoubtedly, but as I said, people have said that
> Batik's rendering of Arabic is pretty good.
>
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
> [attachment "svgbox.txt" deleted by Thomas E. DeWeese/449433/EKC]
[attachment
> "Output.jpg" deleted by Thomas E. DeWeese/449433/EKC]
> ---------------------------------------------------------------------
> 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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Re : Re : Issue when transcoding Arabic chars
Posted by Thomas <tp...@yahoo.fr>.
Hi Thomas and all,
It now works perfectly. So the trick was to remove the dy attribute in <tspan> and replace it by y attribute.
Original SVG:
<text id="boxtext_ar_1" y="30" x="80" text-anchor="middle" font-size="8pt" font-style="normal" font-family="Traditional Arabic">
<tspan x="80" dy="27">[some arabic text 1]</tspan>
<tspan x="80" dy="27">[some arabic text 2]</tspan>
</text>
Working SVG:
<text id="boxtext_ar_1" y="30" x="80" text-anchor="middle" font-size="8pt" font-style="normal" font-family="Traditional Arabic">
<tspan x="80" y="57">[some arabic text 1]</tspan>
<tspan x="80" y="84">[some arabic text 2]</tspan>
</text>
Many thanks to Thomas for his help,
Best regards,
Thomas.
----- Message d'origine ----
De : thomas.deweese@kodak.com
À : batik-users@xmlgraphics.apache.org
Cc : batik-users@xmlgraphics.apache.org
Envoyé le : Mercredi, 23 Août 2006, 3h34mn 38s
Objet : Re : Issue when transcoding Arabic chars
Hi Thomas,
Thomas <tp...@yahoo.fr> wrote on 08/23/2006 09:23:39 AM:
> Following your advices we've moved the attributes from the <tspan> tag
to the
> <text> one:
> <text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
font-size="8pt"
> font-style="normal" font-family="Traditional Arabic" dy="27">
Merge the 'dy' with the 'y':
30+27 = 57 ->
<text id="boxtext_ar_1" y="57" x="80" text-anchor="middle"
font-size="8pt"
font-style="normal" font-family="Traditional Arabic">
> <tspan>[some arabic text]</tspan>
> </text>
> Unfortunately we still can see the same output as provided earlier in my
email.
>
> So we also removed the <tspan> tag:
> <text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
font-size="8pt"
> font-style="normal" font-family="Traditional Arabic" dy="27">[some
arabic text]</text>
> And we still get the same output.
>
> Our batik version is 1.6.
> Any clue?
>
> Thanks,
>
> T.
> ----- Message d'origine ----
> De : thomas.deweese@kodak.com
> À : batik-users@xmlgraphics.apache.org
> Cc : batik-users@xmlgraphics.apache.org
> Envoyé le : Mercredi, 23 Août 2006, 12h32mn 18s
> Objet : Re : Issue when transcoding Arabic chars
> Hi Thomas,
>
> Thomas <tp...@yahoo.fr> wrote on 08/22/2006 08:19:28 AM:
>
> > Please find attached a piece of SVG that contain some rect tags
> > and the text (svgbox.txt)[...] By the way I've got the exact
> > same rendering issue with Adobe SVG Plugin in IE, works very
> > well with Firefox.
>
> So the problem is the tspan. We don't handle the dy
> properly with the Right to Left rendering. If you move
> the tspan attributes to the text element it will work
> properly.
>
> <text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
> font-size="8pt" font-style="normal" font-family="Traditional
> Arabic">
> <tspan x="80" dy="27">[some arabic text]</tspan>
> </text>
>
> > ----- Message d'origine ----
> > De : thomas.deweese@kodak.com
> > À : batik-users@xmlgraphics.apache.org
> > Cc : batik-users@xmlgraphics.apache.org
> > Envoyé le : Mardi, 22 Août 2006, 12h35mn 02s
> > Objet : Re: Issue when transcoding Arabic chars
>
> > Hi Thomas,
> >
> > Thomas <tp...@yahoo.fr> wrote on 08/22/2006 06:08:10 AM:
> >
> > > We've built a simple servlet to transform SVG to JPG
> >
> > > It works very well with all kind of characters but for Arabic
> characters
> > it
> > > does not display correctly.
> > > The first character on the left is displayed well above the others.
> > >
> > > Is this a known issue?
> >
> > Can you provide an example?
> >
> > I am not aware of any known issues with Arabic text
> > handling. In fact I've heard that Batik's rendering of
> > Arabic is good. However, Arabic is an extremely difficult
> > script to layout well.
> >
> > This may also depend on the font used (Batik
> > implements Arabic glyph replacement so the first
> > and last glyphs in each word are replaced, it is
> > possible that the 'base' font doesn't include the
> > initial/final forms of the glyphs so Batik might
> > jump to another font which could account for the
> > problem).
> >
> > > Does a better algorithm exist?
> >
> > undoubtedly, but as I said, people have said that
> > Batik's rendering of Arabic is pretty good.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> > For additional commands, e-mail:
batik-users-help@xmlgraphics.apache.org
>
> > [attachment "svgbox.txt" deleted by Thomas E. DeWeese/449433/EKC]
> [attachment
> > "Output.jpg" deleted by Thomas E. DeWeese/449433/EKC]
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> > For additional commands, e-mail:
batik-users-help@xmlgraphics.apache.org
>
> ---------------------------------------------------------------------
> To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> For additional commands, e-mail: batik-users-help@xmlgraphics.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
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Re : Issue when transcoding Arabic chars
Posted by th...@kodak.com.
Hi Thomas,
Thomas <tp...@yahoo.fr> wrote on 08/23/2006 09:23:39 AM:
> Following your advices we've moved the attributes from the <tspan> tag
to the
> <text> one:
> <text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
font-size="8pt"
> font-style="normal" font-family="Traditional Arabic" dy="27">
Merge the 'dy' with the 'y':
30+27 = 57 ->
<text id="boxtext_ar_1" y="57" x="80" text-anchor="middle"
font-size="8pt"
font-style="normal" font-family="Traditional Arabic">
> <tspan>[some arabic text]</tspan>
> </text>
> Unfortunately we still can see the same output as provided earlier in my
email.
>
> So we also removed the <tspan> tag:
> <text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
font-size="8pt"
> font-style="normal" font-family="Traditional Arabic" dy="27">[some
arabic text]</text>
> And we still get the same output.
>
> Our batik version is 1.6.
> Any clue?
>
> Thanks,
>
> T.
> ----- Message d'origine ----
> De : thomas.deweese@kodak.com
> À : batik-users@xmlgraphics.apache.org
> Cc : batik-users@xmlgraphics.apache.org
> Envoyé le : Mercredi, 23 Août 2006, 12h32mn 18s
> Objet : Re : Issue when transcoding Arabic chars
> Hi Thomas,
>
> Thomas <tp...@yahoo.fr> wrote on 08/22/2006 08:19:28 AM:
>
> > Please find attached a piece of SVG that contain some rect tags
> > and the text (svgbox.txt)[...] By the way I've got the exact
> > same rendering issue with Adobe SVG Plugin in IE, works very
> > well with Firefox.
>
> So the problem is the tspan. We don't handle the dy
> properly with the Right to Left rendering. If you move
> the tspan attributes to the text element it will work
> properly.
>
> <text id="boxtext_ar_1" y="30" x="80" text-anchor="middle"
> font-size="8pt" font-style="normal" font-family="Traditional
> Arabic">
> <tspan x="80" dy="27">[some arabic text]</tspan>
> </text>
>
> > ----- Message d'origine ----
> > De : thomas.deweese@kodak.com
> > À : batik-users@xmlgraphics.apache.org
> > Cc : batik-users@xmlgraphics.apache.org
> > Envoyé le : Mardi, 22 Août 2006, 12h35mn 02s
> > Objet : Re: Issue when transcoding Arabic chars
>
> > Hi Thomas,
> >
> > Thomas <tp...@yahoo.fr> wrote on 08/22/2006 06:08:10 AM:
> >
> > > We've built a simple servlet to transform SVG to JPG
> >
> > > It works very well with all kind of characters but for Arabic
> characters
> > it
> > > does not display correctly.
> > > The first character on the left is displayed well above the others.
> > >
> > > Is this a known issue?
> >
> > Can you provide an example?
> >
> > I am not aware of any known issues with Arabic text
> > handling. In fact I've heard that Batik's rendering of
> > Arabic is good. However, Arabic is an extremely difficult
> > script to layout well.
> >
> > This may also depend on the font used (Batik
> > implements Arabic glyph replacement so the first
> > and last glyphs in each word are replaced, it is
> > possible that the 'base' font doesn't include the
> > initial/final forms of the glyphs so Batik might
> > jump to another font which could account for the
> > problem).
> >
> > > Does a better algorithm exist?
> >
> > undoubtedly, but as I said, people have said that
> > Batik's rendering of Arabic is pretty good.
> >
> >
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> > For additional commands, e-mail:
batik-users-help@xmlgraphics.apache.org
>
> > [attachment "svgbox.txt" deleted by Thomas E. DeWeese/449433/EKC]
> [attachment
> > "Output.jpg" deleted by Thomas E. DeWeese/449433/EKC]
> > ---------------------------------------------------------------------
> > To unsubscribe, e-mail: batik-users-unsubscribe@xmlgraphics.apache.org
> > For additional commands, e-mail:
batik-users-help@xmlgraphics.apache.org
>
> ---------------------------------------------------------------------
> 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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