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Add new example for PLY reading

This commit is contained in:
Simon Giraudot 2017-01-23 15:40:00 +01:00
parent 9175f39c86
commit 0bb283cbbd
2 changed files with 58 additions and 0 deletions
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1
Point_set_processing_3/examples/Point_set_processing_3/CMakeLists.txt
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@ -53,6 +53,7 @@ if ( CGAL_FOUND )
create_single_source_cgal_program( "random_simplification_example.cpp" )
create_single_source_cgal_program( "read_write_xyz_point_set_example.cpp" )
create_single_source_cgal_program( "read_ply_points_with_colors_example.cpp" )
create_single_source_cgal_program( "write_ply_points_example.cpp" )
create_single_source_cgal_program( "remove_outliers_example.cpp" )
create_single_source_cgal_program( "scale_estimation_example.cpp" )
create_single_source_cgal_program( "scale_estimation_2d_example.cpp" )

57
Point_set_processing_3/examples/Point_set_processing_3/write_ply_points_example.cpp Normal file
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@ -0,0 +1,57 @@
#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 CGAL::Exact_predicates_inexact_constructions_kernel Kernel;
typedef Kernel::FT FT;
typedef Kernel::Point_3 Point;
typedef Kernel::Vector_3 Vector;
typedef CGAL::cpp11::array<unsigned char, 4> Color;
// Point with normal, color and intensity
typedef CGAL::cpp11::tuple<Point, Color, int> PCI;
typedef CGAL::Nth_of_tuple_property_map<0, PCI> Point_map;
typedef CGAL::Nth_of_tuple_property_map<1, PCI> Color_map;
typedef CGAL::Nth_of_tuple_property_map<2, PCI> Intensity_map;
namespace std
{
std::ostream& operator<< (std::ostream& stream, const Color& c)
{
stream << int(c[0]) << " " << int(c[1]) << " " << int(c[2]) << " " << int(c[3]);
return stream;
}
}
int main(int, char**)
{
std::vector<PCI> points; // store points
for (std::size_t i = 0; i < 10; ++ i)
points.push_back (CGAL::cpp11::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_base::binary);
CGAL::write_ply_points_with_properties
(f, points.begin(), points.end(),
CGAL::Ply::point_writer (Point_map()),
CGAL::cpp11::make_tuple(Color_map(),
CGAL::Ply::Property<unsigned char>("red"),
CGAL::Ply::Property<unsigned char>("green"),
CGAL::Ply::Property<unsigned char>("blue"),
CGAL::Ply::Property<unsigned char>("alpha")),
std::make_pair (Intensity_map(), CGAL::Ply::Property<int>("intensity")));
return EXIT_SUCCESS;
}