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cgal
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A correct demo. TODO: Add buttons to enable/disable bounding_something

This commit is contained in:
Andreas Fabri 2010-06-30 12:53:46 +00:00
parent 665c0ea8c1
commit 7c0663125c
1 changed files with 22 additions and 29 deletions
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51
GraphicsView/demo/Bounding_volumes/Bounding_volumes.cpp
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@ -70,7 +70,7 @@ private:
const int P;
QGraphicsRectItem *p_center[3];
Iso_rectangle_2 p_center_iso_rectangle[3];
CGAL::Qt::GraphicsViewPolylineInput<K> * pi;
public:
@ -116,18 +116,18 @@ MainWindow::MainWindow()
// Add a GraphicItem for the Min_circle
cgi = new QGraphicsEllipseItem;
cgi->setPen(QPen(Qt::red, 1, Qt::SolidLine));
cgi->setPen(QPen(Qt::red, 0, Qt::SolidLine));
cgi->hide();
scene.addItem(cgi);
egi = new QGraphicsEllipseItem;
egi->setPen(QPen(Qt::cyan, 1, Qt::SolidLine));
egi->setPen(QPen(Qt::magenta, 0, Qt::SolidLine));
egi->hide();
scene.addItem(egi);
for(int i =0; i < P; i++){
p_center[i] = new QGraphicsRectItem;
p_center[i]->setPen(QPen(Qt::magenta, 1, Qt::SolidLine));
p_center[i]->setPen(QPen(Qt::cyan, 0, Qt::SolidLine));
p_center[i]->hide();
scene.addItem(p_center[i]);
}
@ -146,7 +146,7 @@ MainWindow::MainWindow()
QObject::connect(this, SIGNAL(changed()),
convex_hull_gi, SLOT(modelChanged()));
convex_hull_gi->setEdgesPen(QPen(Qt::black, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
convex_hull_gi->setEdgesPen(QPen(Qt::black, 0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
scene.addItem(convex_hull_gi);
@ -155,7 +155,7 @@ MainWindow::MainWindow()
QObject::connect(this, SIGNAL(changed()),
min_rectangle_gi, SLOT(modelChanged()));
min_rectangle_gi->setEdgesPen(QPen(Qt::green, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
min_rectangle_gi->setEdgesPen(QPen(Qt::green, 0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
scene.addItem(min_rectangle_gi);
@ -164,8 +164,8 @@ MainWindow::MainWindow()
QObject::connect(this, SIGNAL(changed()),
min_parallelogram_gi, SLOT(modelChanged()));
min_parallelogram_gi->setEdgesPen(QPen(Qt::blue, 1, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
scene.addItem(min_parallelogram_gi);
min_parallelogram_gi->setEdgesPen(QPen(Qt::blue, 0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
//scene.addItem(min_parallelogram_gi);
// Setup input handlers. They get events before the scene gets them
@ -217,6 +217,11 @@ MainWindow::MainWindow()
void
MainWindow::update()
{
CGAL::Qt::Converter<K> convert;
for(std::size_t i=0; i< P; i++){
p_center[i]->setRect(convert(p_center_iso_rectangle[i]));
p_center[i]->show();
}
if (mc.is_degenerate()){
cgi->hide();
} else {
@ -226,7 +231,6 @@ MainWindow::update()
else
c = K::Circle_2(mc.support_point(0), mc.support_point(1), mc.support_point(2));
CGAL::Qt::Converter<K> convert;
cgi->setRect(convert(c.bbox()));
cgi->show();
@ -242,7 +246,7 @@ MainWindow::update()
double half_height = sqrt(e.vb() * e.vb());
double angle = std::atan2( e.va().y(), e.va().x() ) * 180.0/CGAL_PI;
Vector_2 wh(half_width, half_height);
CGAL::Qt::Converter<K> convert;
Iso_rectangle_2 isor(e.center()+ wh, e.center()-wh);
egi->setRect(convert(isor));
// Rotate an item 45 degrees around (x, y).
@ -272,15 +276,10 @@ MainWindow::update_from_points()
CGAL::rectangular_p_center_2 (points.begin(), points.end(), std::back_inserter(center), radius, P);
Vector_2 rvec(radius, radius);
int i;
CGAL::Qt::Converter<K> convert;
for(i=0; i < center.size(); i++){
p_center[i]->setRect(convert(Iso_rectangle_2(center[i]-rvec, center[i]+rvec)));
p_center[i]->show();
p_center[i]->update();
}
for(; i < P;i++){
p_center[i]->hide();
for(std::size_t i = 0; i < center.size(); i++){
p_center_iso_rectangle[i] = Iso_rectangle_2(center[i]-rvec, center[i]+rvec);
}
}
@ -291,6 +290,7 @@ MainWindow::processInput(CGAL::Object o)
std::list<Point_2> input;
if(CGAL::assign(input, o)){
Point_2 p = input.front();
mc.insert(p);
me.insert(p);
points.push_back(p);
@ -305,23 +305,16 @@ MainWindow::processInput(CGAL::Object o)
min_parallelogram.clear();
CGAL::min_parallelogram_2(convex_hull.vertices_begin(), convex_hull.vertices_end(), std::back_inserter(min_parallelogram));
std::vector<Point_2> center;
double radius;
CGAL::rectangular_p_center_2 (points.begin(), points.end(), std::back_inserter(center), radius, P);
Vector_2 rvec(radius, radius);
int i;
CGAL::Qt::Converter<K> convert;
for(i=0; i < center.size(); i++){
p_center[i]->setRect(convert(Iso_rectangle_2(center[i]-rvec, center[i]+rvec)));
p_center[i]->show();
p_center[i]->update();
}
for(; i < P;i++){
p_center[i]->hide();
}
for(std::size_t i=0; i < center.size(); i++){
p_center_iso_rectangle[i] = Iso_rectangle_2(center[i]-rvec, center[i]+rvec);
}
}
emit(changed());
}