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#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Polyhedron_3.h>
#include <CGAL/poisson_surface_reconstruction.h>
#include <CGAL/IO/read_points.h>
#include <CGAL/draw_polyhedron.h>
#include <CGAL/draw_point_set_3.h>
#include <CGAL/Graphics_scene_options.h>
#include <CGAL/Basic_viewer.h>
#ifdef CGAL_USE_BASIC_VIEWER
#include <QMainWindow>
#endif
#include <vector>
#include <iostream>
using Kernel=CGAL::Exact_predicates_inexact_constructions_kernel;
using Point=Kernel::Point_3;
using Vector=Kernel::Vector_3;
using Pwn=std::pair<Point, Vector>;
using Polyhedron=CGAL::Polyhedron_3<Kernel>;
using PS3=CGAL::Point_set_3<Point>;
int main(void)
{
/// (1) Some CGAL code that create data structures and fill two Graphics_scene.
std::vector<Pwn> points;
if(!CGAL::IO::read_points(CGAL::data_file_path("points_3/kitten.xyz"), std::back_inserter(points),
CGAL::parameters::point_map(CGAL::First_of_pair_property_map<Pwn>())
.normal_map(CGAL::Second_of_pair_property_map<Pwn>())))
{
std::cerr << "Error: cannot read input file " << CGAL::data_file_path("points_3/kitten.xyz") << std::endl;
return EXIT_FAILURE;
}
Polyhedron output_mesh;
double average_spacing = CGAL::compute_average_spacing<CGAL::Sequential_tag>
(points, 6, CGAL::parameters::point_map(CGAL::First_of_pair_property_map<Pwn>()));
if (!CGAL::poisson_surface_reconstruction_delaunay
(points.begin(), points.end(),
CGAL::First_of_pair_property_map<Pwn>(),
CGAL::Second_of_pair_property_map<Pwn>(),
output_mesh, average_spacing))
{ return EXIT_FAILURE; }
PS3 point_set;
for(Pwn& it: points)
{ point_set.insert(it.first); }
CGAL::Graphics_scene scene1, scene2;
CGAL::add_to_graphics_scene(point_set, scene1);
CGAL::add_to_graphics_scene(output_mesh, scene2);
/// (2) Qt code that create windows, add them in a layout, and create app.
#ifdef CGAL_USE_BASIC_VIEWER
#if defined(CGAL_TEST_SUITE)
bool cgal_test_suite=true;
#else
bool cgal_test_suite=qEnvironmentVariableIsSet("CGAL_TEST_SUITE");
#endif
if (cgal_test_suite) { return EXIT_SUCCESS; }
int argc=1;
const char* argv[2]={"Draw several windows example","\0"};
QApplication app(argc,const_cast<char**>(argv));
QMainWindow* mainWindow=new QMainWindow;
QWidget *centralWidget = new QWidget(mainWindow);
QHBoxLayout* layout = new QHBoxLayout(mainWindow);
CGAL::Qt::Basic_viewer bv1(mainWindow, scene1);
CGAL::Qt::Basic_viewer bv2(mainWindow, scene2);
bv1.draw_vertices(true);
layout->addWidget(&bv1);
layout->addWidget(&bv2);
centralWidget->setLayout(layout);
mainWindow->setCentralWidget(centralWidget);
mainWindow->show();
app.exec();
#endif
return EXIT_SUCCESS;
}
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