docbook-apps

Hello,
Does anyone know how to align a MathML equation on the page? I am using
the equation tag, but there is no horizontal alignment feature. In the
past, I used graphics via the mediaobject and they are aligned in the
imagedata. But when using MathML there is no such feature.

Any ideas?


Dean Nelson
Sr. Software Engineer
Enterprise Electronics Corp
http://www.EECradar.com <http://www.eecradar.com/>

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manners if you drive a five-ton truck" - Cleon Lyles


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> -----Original Message-----
> From: Nelson, Dean
>
> Does anyone know how to align a MathML equation on the page?
> I am using the equation tag, but there is no horizontal
> alignment feature. In the past, I used graphics via the
> mediaobject and they are aligned in the imagedata. But when
> using MathML there is no such feature.
>
> Any ideas?


The current stylesheets are not very sophisticated. The MathML markup gets
through to the output, but that's about it.

The following customization adds support for @align and @valign on imagedata
(the original template is in math.xsl):

<xsl:template match="mml:math"
xmlns:mml="http://www.w3.org/1998/Math/MathML">
<xsl:choose>


<xsl:when test="not($passivetex.extensions = 0)">
<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates/>
</xsl:copy>
</xsl:when>
<xsl:otherwise>
<fo:instream-foreign-object>


<xsl:if test="../@align">
<xsl:attribute name="text-align">
<xsl:value-of select="../@align"/>
</xsl:attribute>
</xsl:if>

<xsl:if test="../@valign">
<xsl:attribute name="display-align">
<xsl:choose>
<xsl:when test="../@valign = 'top'">before</xsl:when>
<xsl:when test="../@valign = 'middle'">center</xsl:when>
<xsl:when test="../@valign = 'bottom'">after</xsl:when>
<xsl:otherwise>auto</xsl:otherwise>
</xsl:choose>
</xsl:attribute>
</xsl:if>


<xsl:copy>
<xsl:copy-of select="@*"/>
<xsl:apply-templates/>
</xsl:copy>
</fo:instream-foreign-object>
</xsl:otherwise>
</xsl:choose>
</xsl:template>

I'm not sure if this is the way to go in the long run. I guess that it would
be better if the process.image template in graphics.xsl could be reworked so
that it also supports imagedata attributes for MathML (and SVG).

/Mauritz