CGAL 5.3 - Point Set Processing
Point_set_processing_3/write_ply_points_example.cpp
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/property_map.h>
#include <CGAL/IO/write_ply_points.h>
#include <utility>
#include <vector>
#include <fstream>
// types
typedef Kernel::FT FT;
typedef Kernel::Point_3 Point;
typedef Kernel::Vector_3 Vector;
typedef std::array<unsigned char, 4> Color;
// Point with normal, color and intensity
typedef std::tuple<Point, Color, int> PCI;
// Define how a color should be stored
namespace CGAL {
template< class F >
struct Output_rep< ::Color, F > {
const ::Color& c;
static const bool is_specialized = true;
Output_rep (const ::Color& c) : c(c)
{ }
std::ostream& operator() (std::ostream& out) const
{
if (IO::is_ascii(out))
out << int(c[0]) << " " << int(c[1]) << " " << int(c[2]) << " " << int(c[3]);
else
out.write(reinterpret_cast<const char*>(&c), sizeof(c));
return out;
}
};
} // namespace CGAL
int main(int, char**)
{
std::vector<PCI> points; // store points
for (int i = 0; i < 10; ++ i)
points.push_back (std::make_tuple (Point (i / 10., i / 20., i / 30.),
CGAL::make_array ((unsigned char)(255 / (i + 1)),
(unsigned char)(192 / (i + 1)),
(unsigned char)(128 / (i + 1)),
(unsigned char)(64 / (i + 1))),
i));
std::ofstream f("out.ply", std::ios::binary);
CGAL::IO::set_binary_mode(f); // The PLY file will be written in the binary format
std::make_tuple(Color_map(),
std::make_pair(Intensity_map(), CGAL::IO::PLY_property<int>("intensity")));
return EXIT_SUCCESS;
}