\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.8 - 3D Triangulations

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Triangulation_3/parallel_insertion_in_delaunay_3.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Delaunay_triangulation_3.h>
#include <CGAL/point_generators_3.h>
#include <iostream>
#include <fstream>
#include <vector>
int main()
{
#ifdef CGAL_LINKED_WITH_TBB
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
// Delaunay T3
typedef CGAL::Triangulation_data_structure_3<
CGAL::Triangulation_vertex_base_3<K>,
CGAL::Triangulation_cell_base_3<K>,
CGAL::Parallel_tag> Tds;
typedef CGAL::Delaunay_triangulation_3<K, Tds> Triangulation;
typedef Triangulation::Point Point;
const int NUM_INSERTED_POINTS = 5000;
CGAL::Random_points_in_cube_3<Point> rnd(1.);
// Construction from a vector of 1,000,000 points
std::vector<Point> V;
V.reserve(NUM_INSERTED_POINTS);
for (int i = 0; i != NUM_INSERTED_POINTS; ++i)
V.push_back(*rnd++);
// Construct the locking data-structure, using the bounding-box of the points
Triangulation::Lock_data_structure locking_ds(
CGAL::Bbox_3(-1., -1., -1., 1., 1., 1.), 50);
// Construct the triangulation in parallel
Triangulation T(V.begin(), V.end(), &locking_ds);
assert(T.is_valid());
#endif //CGAL_LINKED_WITH_TBB
return 0;
}