object of type <tt>G</tt>.</TD>
</TR>

<TR>
<TD><tt>X</tt></TD>
<TD>Either the vertex or edge descriptor type for <tt>G</tt>.</TD>
</TR>

<TR>
<TD><tt>x</tt></TD>
<TD>An object of type <tt>X</tt>.</TD>
</TR>


<TR>
<TD><tt>Map</tt></TD>
<TD>The type <tt>boost::property_map&lt;G, Property&gt;::const_type</tt>.</TD>
</TR>

<TR>
<TD><tt>v</tt></TD>
<TD>An object of type <tt>boost::property_traits&lt;Map&gt;::value_type</tt>.</TD>
</TR>

<TR>
<TD><tt>PropertyTag</tt></TD>
<TD>A type that models the <a href="./P