1 <refentry xmlns="http://docbook.org/ns/docbook"
2 xmlns:xlink="http://www.w3.org/1999/xlink"
3 xmlns:xi="http://www.w3.org/2001/XInclude"
4 xmlns:src="http://nwalsh.com/xmlns/litprog/fragment"
5 xmlns:xsl="http://www.w3.org/1999/XSL/Transform"
6 version="5.0" xml:id="points.per.em">
8 <refentrytitle>points.per.em</refentrytitle>
9 <refmiscinfo class="other" otherclass="datatype">number</refmiscinfo>
12 <refname>points.per.em</refname>
13 <refpurpose>Specify the nominal size of an em-space in points</refpurpose>
17 <src:fragment xml:id="points.per.em.frag">
18 <xsl:param name="points.per.em">10</xsl:param>
22 <refsection><info><title>Description</title></info>
24 <para>The fixed value used for calculations based upon the size of a
25 character. The assumption made is that ten point font is in use. This
26 assumption may not be valid.</para>