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Remove pointless template from Zero_gradient

This commit is contained in:
Mael Rouxel-Labbé 2023-01-09 11:06:54 +01:00
parent d7bc1ecc21
commit 88c79dc237
3 changed files with 9 additions and 20 deletions
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2
Isosurfacing_3/include/CGAL/Isosurfacing_3/Implicit_cartesian_grid_domain.h
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@ -74,7 +74,7 @@ using Implicit_cartesian_grid_domain =
*/ */
template <typename GeomTraits, template <typename GeomTraits,
typename PointFunction, typename PointFunction,
typename Gradient_ = Zero_gradient<GeomTraits> > typename Gradient_ = Zero_gradient>
Implicit_cartesian_grid_domain<GeomTraits, PointFunction, Gradient_> Implicit_cartesian_grid_domain<GeomTraits, PointFunction, Gradient_>
create_implicit_cartesian_grid_domain(const Bbox_3& bbox, create_implicit_cartesian_grid_domain(const Bbox_3& bbox,
const typename GeomTraits::Vector_3& spacing, const typename GeomTraits::Vector_3& spacing,

2
Isosurfacing_3/include/CGAL/Isosurfacing_3/Implicit_octree_domain.h
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@ -71,7 +71,7 @@ using Implicit_octree_domain =
*/ */
template <typename GeomTraits, template <typename GeomTraits,
typename PointFunction, typename PointFunction,
typename Gradient_ = Zero_gradient<GeomTraits> > typename Gradient_ = Zero_gradient>
Implicit_octree_domain<GeomTraits, PointFunction, Gradient_> Implicit_octree_domain<GeomTraits, PointFunction, Gradient_>
create_implicit_octree_domain(const std::shared_ptr<internal::Octree_wrapper<GeomTraits> > octree, create_implicit_octree_domain(const std::shared_ptr<internal::Octree_wrapper<GeomTraits> > octree,
const PointFunction& point_function, const PointFunction& point_function,

25
Isosurfacing_3/include/CGAL/Isosurfacing_3/Zero_gradient.h
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@ -14,6 +14,8 @@
#include <CGAL/license/Isosurfacing_3.h> #include <CGAL/license/Isosurfacing_3.h>
#include <CGAL/Origin.h>
namespace CGAL { namespace CGAL {
namespace Isosurfacing { namespace Isosurfacing {
@ -23,32 +25,19 @@ namespace Isosurfacing {
* \brief Class template for a gradient that is always zero. * \brief Class template for a gradient that is always zero.
* *
* \details This gradient function can be used for Marching Cubes, which does not require a gradient. * \details This gradient function can be used for Marching Cubes, which does not require a gradient.
*
* \tparam GeomTraits the traits for this gradient.
*/ */
template <typename GeomTraits> struct Zero_gradient
class Zero_gradient
{ {
public:
using Geom_traits = GeomTraits;
using Point = typename Geom_traits::Point_3;
using Vector = typename Geom_traits::Vector_3;
public:
/** /**
* \ingroup PkgIsosurfacing3Ref * \ingroup PkgIsosurfacing3Ref
* *
* \brief Evaluate the gradient at a point in space. * \return the null vector
*
* \param point the point at which the gradient is computed
*/ */
Vector operator()(const Point& point) const template <typename P>
Null_vector operator()(const P&) const
{ {
return zero; return NULL_VECTOR;
} }
private:
const Vector zero = Vector(0, 0, 0);
}; };
} // namespace Isosurfacing } // namespace Isosurfacing