<para>Returns a "simplified" version of the given geometry using the Douglas-Peuker algorithm. Will actually do something only with (multi)lines and (multi)polygons but you can safely call it
with any kind of geometry. Since simplification occurs on a object-by-object basis you can also feed a GeometryCollection to this function. Note that returned geometry might loose its simplicity (see isSimple)</para>
</listitem>
+ </varlistentry><varlistentry>
+ <term>line_interpolate_point(geometry, distance)</term>
+ <listitem>
+ <para>Interpolates a point along a line. First argument must be a LINESTRING. Second argument is a float between 0 and 1. Returns a point.</para>
+ </listitem>
</varlistentry>
</variablelist>
</sect1>