Re: [xsl] probably a XPath mistake

[George Cristian Bina <george@xxxxxxxxxxxxx>]

Testing with Xalan it seems it has a problem with - placed immediately 
after 1.5 so try again with

<?xml version="1.0" encoding="ISO-8859-1"?>
<xsl:transform version="1.0" 
xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
  xmlns:svg="http://www.w3.org/2000/svg";>
  <xsl:output indent="yes"/>
  <xsl:param name="linefactor" select="1"/>
  <xsl:key name="vertex" match="coordinates" use="@id"/>
  <xsl:variable name="root" select="/"/>

  <xsl:template match="embedding">
    <svg:svg width="3" height="3">
      <xsl:apply-templates select="document('graph.xml')/graph"/>
      <xsl:apply-templates select="coordinates"/>
    </svg:svg>
  </xsl:template>
  <xsl:template match="coordinates">
    <svg:circle r="{0.075*$linefactor}"
      style="stroke:black; stroke-width:{0.05*$linefactor}; fill:white;"
      cx="{number(double[1]/@value)+1.5}" cy="{1.5 - 
number(double[2]/@value)}"/>
  </xsl:template>
  <xsl:template match="edge">
    <xsl:variable name="this" select="."/>
    <xsl:for-each select="$root">
      <svg:line style="stroke:black; stroke-width:{0.05*$linefactor}; 
fill:none;"
        x1="{number(key('vertex',$this/@from)/double[1]/@value)+1.5}"
        y1="{1.5 - number(key('vertex',$this/@from)/double[2]/@value)}"
        x2="{number(key('vertex',$this/@to)/double[1]/@value)+1.5}"
        y2="{1.5 - number(key('vertex',$this/@to)/double[2]/@value)}"/>
    </xsl:for-each>
  </xsl:template>
</xsl:transform>

See the following page for determining what Xalan you are running:
http://xml.apache.org/xalan-j/faq.html#faq-N10064

Regards,
George
---------------------------------------------------------------------
George Cristian Bina
<oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
http://www.oxygenxml.com


Nico Van Cleemput wrote:
> Hi,
>
> I'm sorry, but this still returns NaN in JDK 6, and the desired output 
> in JDK 5.
>
> Greets,
> Nico Van Cleemput
> Ghent University
>
> On 30 Jan 2007, at 09:39, George Cristian Bina wrote:
>
> > Hi Niko,
> >
> > I think it is a problem with the context the key function is executed 
> > in. Change the context to the main document and it should work, see 
> > below:
> >
> > <?xml version="1.0" encoding="ISO-8859-1"?>
> > <xsl:transform version="1.0" 
> > xmlns:xsl="http://www.w3.org/1999/XSL/Transform";
> >   xmlns:svg="http://www.w3.org/2000/svg";>
> >   <xsl:output indent="yes"/>
> >   <xsl:param name="linefactor" select="1"/>
> >   <xsl:key name="vertex" match="coordinates" use="@id"/>
> >   <xsl:variable name="root" select="/"/>
> >
> >   <xsl:template match="embedding">
> >     <svg:svg width="3" height="3">
> >       <xsl:apply-templates select="document('graph.xml')/graph"/>
> >       <xsl:apply-templates select="coordinates"/>
> >     </svg:svg>
> >   </xsl:template>
> >   <xsl:template match="coordinates">
> >     <svg:circle r="{0.075*$linefactor}"
> >       style="stroke:black; stroke-width:{0.05*$linefactor}; fill:white;"
> >       cx="{number(double[1]/@value)+1.5}" 
> > cy="{1.5-number(double[2]/@value)}"/>
> >   </xsl:template>
> >   <xsl:template match="edge">
> >     <xsl:variable name="this" select="."/>
> >     <xsl:for-each select="$root">
> >       <svg:line style="stroke:black; stroke-width:{0.05*$linefactor}; 
> > fill:none;"
> >         x1="{number(key('vertex',$this/@from)/double[1]/@value)+1.5}"
> >         y1="{1.5-number(key('vertex',$this/@from)/double[2]/@value)}"
> >         x2="{number(key('vertex',$this/@to)/double[1]/@value)+1.5}"
> >         y2="{1.5-number(key('vertex',$this/@to)/double[2]/@value)}"/>
> >     </xsl:for-each>
> >   </xsl:template>
> > </xsl:transform>
> >
> > Regards,
> > George
> > ---------------------------------------------------------------------
> > George Cristian Bina
> > <oXygen/> XML Editor, Schema Editor and XSLT Editor/Debugger
> > http://www.oxygenxml.com