CGAL 5.1.3  Triangulated Surface Mesh Simplification

#include <CGAL/Surface_mesh_simplification/Policies/Edge_collapse/Edge_length_cost.h>
The class Edge_length_cost
is a model for the GetCost
concept, which computes the collapse cost as the squared length of the edge.
TriangleMesh  is the type of surface mesh being simplified, and must be a model of the MutableFaceGraph and HalfedgeListGraph concepts. 
Creation  
Edge_length_cost ()  
Default constructor  
Operations  
boost::optional< typename Edge_profile::FT >  operator() (const Edge_profile &profile, const boost::optional< typename Edge_profile::Point > &placement) const 
Returns the collapse cost as the squared distance between the points of the source and target vertices (that is, profile.p0() and profile.p1() . More...  
boost::optional<typename Edge_profile::FT> CGAL::Surface_mesh_simplification::Edge_length_cost< TriangleMesh >::operator()  (  const Edge_profile &  profile, 
const boost::optional< typename Edge_profile::Point > &  placement  
)  const 
Returns the collapse cost as the squared distance between the points of the source and target vertices (that is, profile.p0()
and profile.p1()
.
The argument placement
is unused.