CGAL 4.12.1 - 2D Polyline Simplification
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#include <CGAL/Polyline_simplification_2/Hybrid_squared_distance_cost.h>
This class is a cost function which calculates the cost as the square of the distance between the original and simplified polylines, possibly scaled based on a factor.
Public Member Functions | |
Hybrid_squared_distance_cost (FT ratio) | |
Initializes the cost function with the specified ratio | |
template<class CDT > | |
boost::optional< typename CDT::Geom_traits::FT > | operator() (const Constrained_triangulation_plus_2< CDT > &pct, typename Constrained_triangulation_plus_2< CDT >::Vertices_in_constraint_iterator vicq) const |
Compute the hybrid squared distance cost. More... | |
boost::optional<typename CDT::Geom_traits::FT> CGAL::Polyline_simplification_2::Hybrid_squared_distance_cost< FT >::operator() | ( | const Constrained_triangulation_plus_2< CDT > & | pct, |
typename Constrained_triangulation_plus_2< CDT >::Vertices_in_constraint_iterator | vicq | ||
) | const |
Compute the hybrid squared distance cost.
Given a vertex in constraint iterator vicq
computes vicp=std::prev(vicq)
and vicr=std::next(vicq)
, returns the maximal square distance between each point along the original subpolyline, between vicp
and vicr
, and the straight line segment from *vicp->point() to *vicr->point()
divided by the smallest of
vicq
.CDT | must be CGAL::Constrained_Delaunay_triangulation_2 with a vertex type that is model of PolylineSimplificationVertexBase_2 . |