void
Polyhedron_demo_nef_plugin::on_actionToNef_triggered()
{
const Scene_interface::Item_id index = scene->mainSelectionIndex();
Scene_polyhedron_item* item =
qobject_cast<Scene_polyhedron_item*>(scene->item(index));
if(item)
{
QApplication::setOverrideCursor(Qt::WaitCursor);
QTime time;
time.start();
std::cerr << "Convert polyhedron to nef polyhedron...";
Scene_nef_polyhedron_item* new_nef_item =
Scene_nef_polyhedron_item::from_polyhedron(item);
new_nef_item->setName(tr("%1 (to nef)").arg(item->name()));
new_nef_item->setRenderingMode(item->renderingMode());
item->setVisible(false);
scene->itemChanged(index);
scene->addItem(new_nef_item);
std::cerr << "ok (" << time.elapsed() << " ms)" << std::endl;
QApplication::restoreOverrideCursor();
}
}
void
Polyhedron_demo_nef_plugin::on_actionConvexDecomposition_triggered()
{
const Scene_interface::Item_id index = scene->mainSelectionIndex();
Scene_polyhedron_item* pitem =
qobject_cast<Scene_polyhedron_item*>(scene->item(index));
Scene_nef_polyhedron_item* item =
(pitem)? Scene_nef_polyhedron_item::from_polyhedron(pitem)
: qobject_cast<Scene_nef_polyhedron_item*>(scene->item(index));
if(item) {
QTime time;
time.start();
std::cerr << "Convex decomposition...";
QApplication::setOverrideCursor(Qt::WaitCursor);
std::list<Scene_polyhedron_item*> convex_parts;
item->convex_decomposition(convex_parts);
int i = 0;
for(std::list<Scene_polyhedron_item*>::iterator it = convex_parts.begin();
it != convex_parts.end();
++it){
(*it)->setName(tr("part %1 of %2").arg(i++).arg(item->name()));
(*it)->setRenderingMode(item->renderingMode());
scene->addItem(*it);
}
if(pitem){
delete item;
pitem->setVisible(false);
} else {
item->setVisible(false);
}
std::cerr << "ok (" << time.elapsed() << " ms)" << std::endl;
QApplication::restoreOverrideCursor();
} else {
std::cerr << "Only a Polyhedron or a Nef Polyhedron can be decomposed in convex parts" << std::endl;
}
}
