#include <CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Midpoint_placement.h>
The class Midpoint_placement
is a model for the GetPlacement
concept which computes the placement as the midpoint position along the edge.
 Template Parameters

 Is Model Of:
GetPlacement

boost::optional< typename Edge_profile::Point >  operator() (const Edge_profile &profile) const 
 Returns the placement (vertex position) as the midpoint between the points of the source and target vertices (profile.p0() and profile.p1() )

