<para> 
This filter removes points based on their proximity to each other.  A 
point is removed if it is within the specified distance of a point that 
has come before.
</para>

<example id="posn_to_suppress_close_points">
<title>Using the position filter to suppress close points</title>
<para>
The following command removes multiple points that are within 
one foot of each other, leaving just one.
</para>
<para><userinput>gpsbabel -i geo -f 1.loc -f 2.loc -x position,distance=1f -o mapsend -F 3.wpt</userinput></para>
</example>
      
