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//#undef CGAL_LINKED_WITH_TBB
#include "config.h"
#include "Scene_points_with_normal_item.h"
#include <CGAL/Three/CGAL_Lab_plugin_helper.h>
#include <CGAL/Three/CGAL_Lab_plugin_interface.h>
#include <CGAL/compute_average_spacing.h>
#include <CGAL/Real_timer.h>
#include <CGAL/Memory_sizer.h>
#include <QObject>
#include <QAction>
#include <QMainWindow>
#include <QApplication>
#include <QtPlugin>
#include <QInputDialog>
#include <QMessageBox>
#include "run_with_qprogressdialog.h"
// Concurrency
typedef CGAL::Parallel_if_available_tag Concurrency_tag;
struct Compute_average_spacing_functor
: public Functor_with_signal_callback
{
Point_set* points;
const int nb_neighbors;
std::shared_ptr<double> result;
Compute_average_spacing_functor (Point_set* points, const int nb_neighbors)
: points (points), nb_neighbors (nb_neighbors), result (new double(0)) { }
void operator()()
{
*result = CGAL::compute_average_spacing<Concurrency_tag>(
points->all_or_selection_if_not_empty(),
nb_neighbors,
points->parameters().
callback (*(this->callback())));
}
};
using namespace CGAL::Three;
class CGAL_Lab_point_set_average_spacing_plugin :
public QObject,
public CGAL_Lab_plugin_helper
{
Q_OBJECT
Q_INTERFACES(CGAL::Three::CGAL_Lab_plugin_interface)
Q_PLUGIN_METADATA(IID "com.geometryfactory.CGALLab.PluginInterface/1.0")
private:
QAction* actionAverageSpacing;
public:
void init(QMainWindow* mainWindow, CGAL::Three::Scene_interface* scene_interface, Messages_interface*) {
scene = scene_interface;
mw = mainWindow;
actionAverageSpacing = new QAction(tr("Average Spacing"), mainWindow);
actionAverageSpacing->setProperty("subMenuName","Point Set Processing");
actionAverageSpacing->setObjectName("actionAverageSpacing");
autoConnectActions();
}
QList<QAction*> actions() const {
return QList<QAction*>() << actionAverageSpacing;
}
//! Applicable if the currently selected item is a
//! points_with_normal_item.
bool applicable(QAction*) const {
return qobject_cast<Scene_points_with_normal_item*>(scene->item(scene->mainSelectionIndex()));
}
public Q_SLOTS:
void on_actionAverageSpacing_triggered();
}; // end CGAL_Lab_point_set_average_spacing_plugin
void CGAL_Lab_point_set_average_spacing_plugin::on_actionAverageSpacing_triggered()
{
const CGAL::Three::Scene_interface::Item_id index = scene->mainSelectionIndex();
Scene_points_with_normal_item* item =
qobject_cast<Scene_points_with_normal_item*>(scene->item(index));
if(item)
{
// Gets point set
Point_set* points = item->point_set();
if(points == nullptr)
return;
// Gets options
bool ok;
const int nb_neighbors =
QInputDialog::getInt((QWidget*)mw,
tr("Average Spacing"), // dialog title
tr("Number of neighbors:"), // field label
6, // default value = 1 ring
6, // min
1000, // max
1, // step
&ok);
if(!ok)
return;
QApplication::setOverrideCursor(Qt::BusyCursor);
QApplication::processEvents();
CGAL::Real_timer task_timer; task_timer.start();
std::cerr << "Average spacing (k=" << nb_neighbors <<")...\n";
// Computes average spacing
Compute_average_spacing_functor functor (points, nb_neighbors);
run_with_qprogressdialog (functor, "Computing average spacing...", mw);
double average_spacing = *functor.result;
// Print result
Kernel::Sphere_3 bsphere = points->bounding_sphere();
double radius = std::sqrt(bsphere.squared_radius());
std::size_t memory = CGAL::Memory_sizer().virtual_size();
std::cerr << "Average spacing = " << average_spacing
<< " = " << average_spacing/radius << " * point set radius ("
<< task_timer.time() << " seconds, "
<< (memory>>20) << " Mb allocated)"
<< std::endl;
QApplication::restoreOverrideCursor();
QMessageBox::information(nullptr,
tr("Average Spacing"),
tr("Average Spacing = %1 = %2 * point set radius")
.arg(average_spacing)
.arg(average_spacing/radius));
}
}
#include "Point_set_average_spacing_plugin.moc"
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