CGAL 5.3 - Shape Detection
#if defined (_MSC_VER) && !defined (_WIN64)
#pragma warning(disable:4244) // boost::number_distance::distance()
// converts 64 to 32 bits integers
#include <CGAL/internal/disable_deprecation_warnings_and_errors.h>
#include <fstream>
#include <iostream>
#include <CGAL/property_map.h>
#include <CGAL/IO/read_points.h>
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Shape_detection_3.h>
// Type declarations.
typedef std::pair<Kernel::Point_3, Kernel::Vector_3> Point_with_normal;
typedef std::vector<Point_with_normal> Pwn_vector;
// In Shape_detection_traits the basic types, i.e., Point and Vector types
// as well as iterator type and property maps, are defined.
typedef CGAL::Shape_detection_3::Shape_detection_traits
<Kernel, Pwn_vector, Point_map, Normal_map> Traits;
typedef CGAL::Shape_detection_3::Efficient_RANSAC<Traits> Efficient_ransac;
typedef CGAL::Shape_detection_3::Region_growing_depr<Traits> Region_growing;
typedef CGAL::Shape_detection_3::Plane<Traits> Plane;
// This program both works for RANSAC and Region Growing.
// This example is using deprecated code!
// Please update your code to the new version using other examples!
template<typename ShapeDetection>
int run(const char* filename) {
// Points with normals.
Pwn_vector points;
// Load a point set from a file.
// read_points takes an OutputIterator for storing the points
// and a property map to store the normal vector with each point.
if (!CGAL::IO::read_points(filename,
normal_map(Normal_map()))) {
std::cout << "Error: cannot read the file cube.pwn" << std::endl;
// Instantiate a shape detection engine.
ShapeDetection shape_detection;
// Provide the input data.
// Register planar shapes via template method.
shape_detection.template add_shape_factory<Plane>();
// Detect registered shapes with default parameters.
// Print number of detected shapes.
std::cout << shape_detection.shapes().end() - shape_detection.shapes().begin()
<< " shapes detected." << std::endl;
int main (int argc, char** argv) {
if (argc > 1 && std::string(argv[1]) == "-r") {
std::cout << "Efficient RANSAC" << std::endl;
return run<Efficient_ransac> ((argc > 2) ? argv[2] : "data/cube.pwn");
std::cout << "Region Growing" << std::endl;
return run<Region_growing> ((argc > 1) ? argv[1] : "data/cube.pwn");