Agility course library copyright  Tommi Raita-aho, tra@iki.fi
You are free to use, copy of modify this library under terms of the
xfig license. Please let me know if you have good stuff to add this
library.

To use Agility library you need to add this file structure to 
/usr/share/xfig/Libraries/Agility/
or similar place where xfig is installed. Or just create same link to
point directory where the data really is. Or you can  use xfig option:
-library_d[ir] directory
              Specify directory where Fig object libraries are
              located.  There may be sub-directories there 
              and sub-sub-directories, etc.
see man xfig.

In xfig change ruler units to Metric and Figure units to 
User define (unit name to m) and you are in correct scale :)

Edit --> set units -->  Ruler units
                       Figure units

Or you can start xfig by:
xfig -metric -userunit m

I can recommend also option  -showl[engths]

For example then you can measure distances between obstacles by
drawing arc or polyline and using tool "Measure LENGTH of
polylines..." have fun!
