CGAL 5.6.3 - Point Set Processing

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Point_set_processing_3/wlop_simplify_and_regularize_point_set_example.cpp
#include <CGAL/Simple_cartesian.h>
#include <CGAL/wlop_simplify_and_regularize_point_set.h>
#include <CGAL/IO/read_points.h>
#include <CGAL/IO/write_points.h>
#include <vector>
#include <fstream>
#include <iostream>
// types
typedef CGAL::Simple_cartesian<double> Kernel;
typedef Kernel::Point_3 Point;
// Concurrency
typedef CGAL::Parallel_if_available_tag Concurrency_tag;
int main(int argc, char** argv)
{
const std::string input_filename = (argc>1)?argv[1]:CGAL::data_file_path("points_3/sphere_20k.xyz");
const char* output_filename = (argc>2)?argv[2]:"data/sphere_20k_WLOPED.xyz";
// Reads a .xyz point set file in points[]
std::vector<Point> points;
if(!CGAL::IO::read_points(input_filename, std::back_inserter(points)))
{
std::cerr << "Error: cannot read file " << input_filename << std::endl;
return EXIT_FAILURE;
}
std::vector<Point> output;
//parameters
const double retain_percentage = 2; // percentage of points to retain.
const double neighbor_radius = 0.5; // neighbors size.
CGAL::wlop_simplify_and_regularize_point_set<Concurrency_tag>
(points, std::back_inserter(output),
CGAL::parameters::select_percentage(retain_percentage).
neighbor_radius (neighbor_radius));
if(!CGAL::IO::write_points(output_filename, output, CGAL::parameters::stream_precision(17)))
return EXIT_FAILURE;
return EXIT_SUCCESS;
}
Kernel::Point_3
CGAL::IO::write_points
bool write_points(const std::string &fname, const PointRange &points, const NamedParameters &np=parameters::default_values(),)
writes the range of points with properties to a file.
Definition: write_points.h:92
CGAL::IO::read_points
bool read_points(const std::string &fname, PointOutputIterator output, const NamedParameters &np=parameters::default_values())
reads the point set from an input file.
Definition: read_points.h:89
Kernel
CGAL::Parallel_if_available_tag
CGAL::Simple_cartesian