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Implement convenience function

This commit is contained in:
Mael Rouxel-Labbé 2024-03-25 10:44:37 +01:00
parent f605c3bae5
commit 8677a81439
1 changed files with 9 additions and 3 deletions
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12
Isosurfacing_3/include/CGAL/Isosurfacing_3/Interpolated_discrete_gradients_3.h
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@ -16,8 +16,8 @@
#include <CGAL/license/Isosurfacing_3.h> #include <CGAL/license/Isosurfacing_3.h>
#include <CGAL/Isosurfacing_3/internal/partition_traits.h> #include <CGAL/Isosurfacing_3/internal/partition_traits.h>
#include <CGAL/Isosurfacing_3/interpolation_schemes_3.h> #include <CGAL/Isosurfacing_3/interpolation_schemes_3.h>
#include <CGAL/Isosurfacing_3/Finite_difference_gradient_3.h>
#include <vector> #include <vector>
@ -63,12 +63,18 @@ public:
} }
// computes and stores gradients at the vertices of the grid // computes and stores gradients at the vertices of the grid
// \tparam must be ValueField a model of `IsosurfacingValueField_3` // \tparam ValueField must be a model of `IsosurfacingValueField_3`
// \param values a field of values whose gradient are being computed // \param values a field of values whose gradient are being computed
template <typename ValueField> template <typename ValueField>
void compute_discrete_gradients(const ValueField& values) void compute_discrete_gradients(const ValueField& values)
{ {
// @todo const FT step = CGAL::approximate_sqrt(m_grid.spacing().squared_length()) * 0.01; // finite difference step
Finite_difference_gradient_3<Geom_traits> g(values, step);
for(std::size_t i=0; i<m_grid.xdim(); ++i)
for(std::size_t j=0; j<m_grid.ydim(); ++j)
for(std::size_t k=0; k<m_grid.zdim(); ++k)
m_gradients[m_grid.linear_index(i, j, k)] = g(m_grid.point(i,j,k));
} }
public: public: