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accumulator needed
- To: XSL-List at lists dot mulberrytech dot com
- Subject: [xsl] accumulator needed
- From: Karim Barkati <barkati at edite-de-paris dot com dot fr>
- Date: Thu, 05 Jul 2001 17:57:36 +0200
- Reply-To: xsl-list at lists dot mulberrytech dot com
Hello,
I'm trying to generate a SVG file from a MusicXML file, using a XSLT
stylesheet.
I need to compute my x_offset depending on the duration of the previous
notes.
In other words, I need an accumulator.
I tried to use an xsl:variable, but I learnt it's not updateable...
I need a true variable, or is there an other way?
Any suggestion is welcome. :-)
Karim Barkati
<!-- Draw notes. -->
<xsl:for-each select="note">
<xsl:apply-templates select=".">
<xsl:with-param name="x_offset" select="$LEFT_MARGIN + 10">
</xsl:with-param>
<xsl:with-param name="y_offset" select="$TOP_MARGIN + $HEADER_SIZE +
(($measure_number - 1) * ($SYSTEM_SPACING + (4 *
$STAFF_LINE_SPACING)))">
</xsl:with-param>
</xsl:apply-templates>
</xsl:for-each>
...
<!-- Draw a quarter note. -->
<xsl:template match="note">
<xsl:if test="type='quarter'">
<xsl:element name="g">
<xsl:attribute name="transform">
<xsl:text>translate(</xsl:text>
<xsl:value-of select="$x_offset"></xsl:value-of>
<xsl:text>,</xsl:text>
<xsl:value-of select="$y_offset"></xsl:value-of>
<xsl:text>)</xsl:text>
</xsl:attribute>
<xsl:element name="use">
<xsl:attribute name="xlink:href"
namespace="http://www.w3.org/1999/xlink">
<xsl:text>MusicGlyphs.svg#BLACKHEAD</xsl:text>
</xsl:attribute>
</xsl:element>
</xsl:element>
</xsl:if>
</xsl:template>
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