<imagedata fileref="images/check.png" />
</imageobject>
</inlinemediaobject> This function supports 3d and will not drop the z-index.</para>
+
+ <!-- Optionally mention Circular String Support -->
+ <para><inlinemediaobject>
+ <imageobject>
+ <imagedata fileref="images/check.png" />
+ </imageobject>
+ </inlinemediaobject> This method supports Circular Strings and Curves </para>
</refsection>
POINT(0 0)
POINT(1 1)
POINT(2 2)
-(3 rows)</programlisting>
+(3 rows)
+
+--Example circular string
+SELECT ST_AsText(ST_PointN(ST_GeomFromText('CIRCULARSTRING(1 2, 3 2, 1 2)'),2));
+
+st_astext
+----------
+POINT(3 2)
+</programlisting>
</refsection>
<refsection>