Your problem is in the line stacking. XSL-FO formatter stack all
inline elements (fo:instream-foreign-object is inline-level element)
into lines. Minimal line height is controled by several attributes
such as line-height, line-stacking-strategy and etc. And, typically,
for 10pt font minimal line height is 12pt or so. Thus, your SVG is
placed to the bottom of the line and it is lower than expected. To
avoid this you should specify font-size="0pt" and line-height="0pt".

I suggest using freeware Altsoft XSL-FO Debugger
(http://alt-soft.com/products_xsl-fo_debugger.jsp) to analyze your
output and find what causes unexpected spaces. It can paint line and
formatting objects bounding boxes. So you can see the structure of
your file.


Best regards,
Altsoft Xml2PDF Team
http://alt-soft.com/products_xml2pdf.jsp



jehanzeb.hameed@g... wrote in message news:<1112701332.161206.238880@f...>...
> Hello
> 
> I am trying to draw a horizontal line in xsl-fo using svg. However, the
> line appears a few units below the place where I want it to be. For
> example in the following code, the line is drawn around 43mm from the
> top, instead of at 40mm.
> 
> <fo:block-container position="absolute" left="10mm" top="40mm"
> width="20.001mm"
>                 height="0.169mm">
>     <fo:block>
>       <fo:instream-foreign-object content-width="20.001mm"
> content-height="0.169mm">
>          <svg width="20.001mm" height="0.169mm">
>            <line x1="20.001mm" y1="0.085mm" x2="0.000mm" y2="0.085mm"
>               stroke-width="0.169mm" fill="none" stroke="rgb(0,0,0)"/>
>          </svg>
>       </fo:instream-foreign-object>
>    </fo:block>
> </fo:block-container>
> 
> Zeb