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Posted to fop-users@xmlgraphics.apache.org by Deryl Seale <de...@intel-assess.com> on 2007/06/05 15:01:00 UTC
Help with MathML/JEuclid
Hello, everyone. Apologies in advance if this has been answered
elsewhere, but I have not been able to find a solution to my issue.
I am trying to render PDF content that contains embedded MathML, a
sample of which is contained in the message below. I found the
JEuclid plugin, and have successfully integrated it with Apache FOP
such that my MathML contained in instream-foreign-object blocks gets
passed to the plugin -- the MathML is being rendered by JEuclid,
albeit improperly. The issue I have seems to be with fonts; many of
the valid escape sequences (e.g. −) get rendered as #
characters, as if the FOP renderer encountered a character that was
not in the font family it was using. If I pass the exact same
sample.fo file to the JEuclid MathViewer application at the following
link (requires JDK 1.5 Web Start to run):
http://jeuclid.sourceforge.net/jeuclid-webstart/mathviewer.jnlp
.. the math renders perfectly. I have tried registering the JEuclid
recommended fonts (e.g. DejaVu) with the FOP renderer, and while the
fonts for the body text do change, the equation remains unchanged. I
am not sure if this is an issue with the configuration for FOP or
JEuclid -- the latter is pretty sparse -- so I am hoping someone has
encountered this issue and might be able to give me some pointers.
--
Deryl Seale -- Director of Engineering
c: 734.883.9636
deryl.seale@intel-assess.com
www.intel-assess.com
-=-=-=-=-=-=-=-=- SAMPLE FO -=-=-=-=-=-=-=-=-
<fo:root xmlns:fo="http://www.w3.org/1999/XSL/Format" xmlns:m="http://
www.w3.org/1998/Math/MathML">
<fo:layout-master-set>
<fo:simple-page-master master-name="only">
<fo:region-body region-name="xsl-region-body"
margin="0.7in"/>
<fo:region-before region-name="xsl-region-before"
extent="0.7in" display-align="before"/>
<fo:region-after region-name="xsl-region-after" display-
align="after" extent="0.7in"/>
</fo:simple-page-master>
</fo:layout-master-set>
<fo:page-sequence master-reference="only">
<fo:flow flow-name="xsl-region-body">
<fo:block>
A sample equation:
<fo:instream-foreign-object>
<m:math>
<m:mrow>
<m:mrow>
<m:mo>(</m:mo>
<m:mrow>
<m:mn>6</m:mn>
<m:msup>
<m:mi>y</m:mi>
<m:mn>3</m:mn>
</m:msup>
<m:mo>+</m:mo>
<m:mn>2</m:mn>
<m:msup>
<m:mi>y</m:mi>
<m:mn>2</m:mn>
</m:msup>
<m:mo>−</m:mo>
<m:mi>y</m:mi>
<m:mo>−</m:mo>
<m:mn>12</m:mn>
</m:mrow>
<m:mo>)</m:mo>
</m:mrow>
</m:mrow>
</m:math>
</fo:instream-foreign-object>
</fo:block>
</fo:flow>
</fo:page-sequence>
</fo:root>
Re: Help with MathML/JEuclid
Posted by Deryl Seale <de...@intel-assess.com>.
> Are you sure the font used for the text really is DejaVu (check the
> properties of the PDF file in your viewer)?
Yes, I am fairly certain it's DejaVu -- it visibly changes to what
I'd expect the font to look like, and upon inspection in the file
properties, I see the DejaVu font listed along with the other Acrobat
internal fonts. Is there anything else I need to do to get JEuclid
working besides installing the plugin, registering the proper font
family with FOP, and making sure my FO input XML is properly set up?
Has anyone else successfully run the JEuclid plugin?
> Have you tried the jeuclid-user mailing list?
I will try them now, though it looks like a low traffic list.
thanks.
--Deryl
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Re: Help with MathML/JEuclid
Posted by Vincent Hennebert <vi...@anyware-tech.com>.
Hi Deryl,
Deryl Seale a écrit :
> Hello, everyone. Apologies in advance if this has been answered
> elsewhere, but I have not been able to find a solution to my issue.
>
> I am trying to render PDF content that contains embedded MathML, a
> sample of which is contained in the message below. I found the JEuclid
> plugin, and have successfully integrated it with Apache FOP such that my
> MathML contained in instream-foreign-object blocks gets passed to the
> plugin -- the MathML is being rendered by JEuclid, albeit improperly.
> The issue I have seems to be with fonts; many of the valid escape
> sequences (e.g. −) get rendered as # characters, as if the FOP
> renderer encountered a character that was not in the font family it was
> using. If I pass the exact same sample.fo file to the JEuclid
> MathViewer application at the following link (requires JDK 1.5 Web Start
> to run):
>
> http://jeuclid.sourceforge.net/jeuclid-webstart/mathviewer.jnlp
>
> .. the math renders perfectly. I have tried registering the JEuclid
> recommended fonts (e.g. DejaVu) with the FOP renderer, and while the
> fonts for the body text do change, the equation remains unchanged. I am
> not sure if this is an issue with the configuration for FOP or JEuclid
> -- the latter is pretty sparse -- so I am hoping someone has encountered
> this issue and might be able to give me some pointers.
This is strange. If the aspect of the body text changes, I assume you
properly configured the DejaVu fonts for FOP and didn't forget to
specify the config file on the command line:
fop -c config.xml math.fo math.pdf
Are you sure the font used for the text really is DejaVu (check the
properties of the PDF file in your viewer)?
Have you tried the jeuclid-user mailing list?
HTH,
Vincent
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