CGAL::Isosurfacing::Finite_difference_gradient< GeomTraits, PointFunction > Class Template Reference

#include <CGAL/Default_gradients.h>

Definition

Template class for a gradient that is calculated using finite differences.

This gradient function evaluates an implicit value function at six points that are a given distance delta away from the queried point.

Template Parameters

GeomTraits	the traits for this gradient.
PointFunction	the type of the value function

Public Types
typedef GeomTraits	Geom_traits
typedef Geom_traits::FT	FT
typedef Geom_traits::Point_3	Point
typedef Geom_traits::Vector_3	Vector

Public Member Functions
	Finite_difference_gradient (const PointFunction &func, const FT delta=0.001)
Vector	operator() (const Point &point) const