diff -r dcb70198e2a2 -r 0b0bdf24d00c src/work/athos/xy/xy.h
--- a/src/work/athos/xy/xy.h	Fri Mar 26 14:05:01 2004 +0000
+++ b/src/work/athos/xy/xy.h	Fri Mar 26 14:33:32 2004 +0000
@@ -6,6 +6,17 @@
 
 namespace hugo {
 
+///\file
+///\brief A simple two dimensional vector and a bounding box implementation 
+///
+/// The class \ref hugo::xy "xy" implements
+///a two dimensional vector with the usual
+/// operations.
+///
+/// The class \ref hugo::BoundingBox "BoundingBox" can be used to determine
+/// the rectangular bounding box a set of \ref hugo::xy "xy"'s.
+
+
 /** \brief
 2 dimensional vector (plainvector) implementation