CGAL 5.6.3 - 3D Point Set

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Point_set_3/point_set_read_ply.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Point_set_3.h>
#include <fstream>
#include <limits>
typedef CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef Kernel::FT FT;
typedef Kernel::Point_3 Point;
typedef Kernel::Vector_3 Vector;
typedef CGAL::Point_set_3<Point> Point_set;
int main (int argc, char** argv)
{
std::ifstream f(argc > 1 ? argv[1] : CGAL::data_file_path("points_3/example.ply"),
std::ios_base::binary); // Mandatory on Windows if input is binary PLY
Point_set point_set;
if(!CGAL::IO::read_PLY(f, point_set)) // same as `f >> point_set`
{
std::cerr << "Can't read input file " << std::endl;
return EXIT_FAILURE;
}
// Shows which properties are defined
std::vector<std::string> properties = point_set.properties();
std::cerr << "Properties:" << std::endl;
for(std::size_t i = 0; i < properties.size(); ++ i)
std::cerr << " * " << properties[i] << std::endl;
// Recover "label" property of type int
Point_set::Property_map<boost::int32_t> label_prop;
bool found = false;
boost::tie(label_prop, found) = point_set.property_map<boost::int32_t> ("label");
if(found)
{
std::cerr << "Point set has an integer \"label\" property with values:" << std::endl;
for (Point_set::iterator it = point_set.begin(); it != point_set.end(); ++ it)
std::cerr << " * " << label_prop[*it] << std::endl;
}
if(argc > 2 && strcmp (argv[2], "-b") == 0) // Optional binary output
{
CGAL::IO::write_PLY("out.ply", point_set, CGAL::parameters::stream_precision(17));
}
else // ASCII output
{
CGAL::IO::write_PLY("out.ply", point_set, CGAL::parameters::stream_precision(17)
.use_binary_mode(false));
}
return 0;
}
CGAL::Exact_predicates_inexact_constructions_kernel
CGAL::Point_set_3
A collection of points with dynamically associated properties.
Definition: Point_set_3.h:123
Kernel::Point_3
Kernel::Vector_3
CGAL::IO::write_PLY
bool write_PLY(std::ostream &out, const PointRange &points, const PolygonRange &polygons, const NamedParameters &np=parameters::default_values())
CGAL::IO::read_PLY
bool read_PLY(std::istream &is, PointRange &points, PolygonRange &polygons, const NamedParameters &np=parameters::default_values())
Kernel