#include <gudhi/Alpha_complex_3d.h>
#include <gudhi/Simplex_tree.h>
#include <iostream>
#include <string>
#include <vector>
#include <limits>
using Weighted_alpha_complex_3d =
using Bare_point = Weighted_alpha_complex_3d::Bare_point_3;
using Weighted_point = Weighted_alpha_complex_3d::Weighted_point_3;
int main(int argc, char **argv) {
std::vector<Weighted_point> weighted_points;
weighted_points.emplace_back(Bare_point(1, -1, -1), 4.);
weighted_points.emplace_back(Bare_point(-1, 1, -1), 4.);
weighted_points.emplace_back(Bare_point(-1, -1, 1), 4.);
weighted_points.emplace_back(Bare_point(1, 1, 1), 4.);
weighted_points.emplace_back(Bare_point(2, 2, 2), 1.);
Weighted_alpha_complex_3d alpha_complex_from_points(weighted_points);
if (alpha_complex_from_points.create_complex(simplex)) {
std::clog <<
"Weighted alpha complex is of dimension " << simplex.
dimension() <<
" - " << simplex.
num_simplices()
<<
" simplices - " << simplex.
num_vertices() <<
" vertices." << std::endl;
std::clog << "Iterator on weighted alpha complex simplices in the filtration order, with [filtration value]:" << std::endl;
std::clog << " ( ";
std::clog << vertex << " ";
}
std::clog << ") -> "
std::clog << std::endl;
}
}
return 0;
}
Simplex Tree data structure for representing simplicial complexes.
Definition: Simplex_tree.h:75
Filtration_simplex_range const & filtration_simplex_range(Indexing_tag=Indexing_tag())
Returns a range over the simplices of the simplicial complex, in the order of the filtration.
Definition: Simplex_tree.h:262
Simplex_vertex_range simplex_vertex_range(Simplex_handle sh) const
Returns a range over the vertices of a simplex.
Definition: Simplex_tree.h:273
static Filtration_value filtration(Simplex_handle sh)
Returns the filtration value of a simplex.
Definition: Simplex_tree.h:509
size_t num_vertices() const
Returns the number of vertices in the complex.
Definition: Simplex_tree.h:546
int dimension(Simplex_handle sh)
Returns the dimension of a simplex.
Definition: Simplex_tree.h:574
size_t num_simplices()
returns the number of simplices in the simplex_tree.
Definition: Simplex_tree.h:552
Alpha complex data structure for 3d specific case.
Definition: Alpha_complex_3d.h:121