A Qt4 based demo of the Circular Kernel
This commit is contained in:
Andreas Fabri
@@ -0,0 +1,285 @@
|
||||
|
||||
#include <fstream>
|
||||
|
||||
// CGAL headers
|
||||
#include <CGAL/Cartesian.h>
|
||||
#include <CGAL/MP_Float.h>
|
||||
#include <CGAL/Algebraic_kernel_for_circles_2_2.h>
|
||||
#include <CGAL/Circular_kernel_2.h>
|
||||
#include <CGAL/intersections.h>
|
||||
#include <CGAL/Circular_kernel_2.h>
|
||||
#include <CGAL/Object.h>
|
||||
|
||||
// Qt headers
|
||||
#include <QtGui>
|
||||
#include <QString>
|
||||
#include <QActionGroup>
|
||||
#include <QFileDialog>
|
||||
#include <QInputDialog>
|
||||
|
||||
// GraphicsView items and event filters (input classes)
|
||||
#include <CGAL/Qt/GraphicsViewCircularArcInput.h>
|
||||
#include "ArcsGraphicsItem.h"
|
||||
|
||||
// the two base classes
|
||||
#include "ui_Circular_kernel_2.h"
|
||||
#include <CGAL/Qt/DemosMainWindow.h>
|
||||
|
||||
typedef CGAL::Quotient<CGAL::MP_Float> NT;
|
||||
typedef CGAL::Cartesian<NT> Linear_k;
|
||||
|
||||
typedef CGAL::Algebraic_kernel_for_circles_2_2<NT> Algebraic_k;
|
||||
typedef CGAL::Circular_kernel_2<Linear_k,Algebraic_k> CircularKernel;
|
||||
|
||||
typedef CircularKernel::Point_2 Point_2;
|
||||
typedef CircularKernel::Segment_2 Segment_2;
|
||||
typedef CircularKernel::Line_arc_2 Line_arc_2;
|
||||
typedef CircularKernel::Circular_arc_2 Circular_arc_2;
|
||||
typedef CircularKernel::Circular_arc_point_2 Circular_arc_point_2;
|
||||
|
||||
|
||||
typedef CGAL::Qt::ArcsGraphicsItem<CircularKernel> ArcsGraphicsItem;
|
||||
|
||||
|
||||
typedef std::vector<CGAL::Object> ArcContainer;
|
||||
|
||||
class MainWindow :
|
||||
public CGAL::Qt::DemosMainWindow,
|
||||
public Ui::Circular_kernel_2
|
||||
{
|
||||
Q_OBJECT
|
||||
|
||||
private:
|
||||
ArcContainer arcs;
|
||||
ArcContainer intersections;
|
||||
CircularKernel ck;
|
||||
QGraphicsScene scene;
|
||||
|
||||
ArcsGraphicsItem * agi;
|
||||
|
||||
|
||||
CGAL::Qt::GraphicsViewCircularArcInput<CircularKernel> * cai;
|
||||
|
||||
public:
|
||||
MainWindow();
|
||||
|
||||
public slots:
|
||||
|
||||
void processInput(CGAL::Object o);
|
||||
|
||||
|
||||
void on_actionInsertCircularArc_toggled(bool checked);
|
||||
|
||||
void on_actionClear_triggered();
|
||||
|
||||
void on_actionLoadLineAndCircularArcs_triggered();
|
||||
|
||||
void on_actionRecenter_triggered();
|
||||
|
||||
|
||||
signals:
|
||||
void changed();
|
||||
};
|
||||
|
||||
|
||||
MainWindow::MainWindow()
|
||||
: DemosMainWindow()
|
||||
{
|
||||
setupUi(this);
|
||||
|
||||
// Add a GraphicItem for the Circular triangulation
|
||||
agi = new CGAL::Qt::ArcsGraphicsItem<CircularKernel>(arcs, intersections);
|
||||
|
||||
agi->setIntersectionsPen(QPen(Qt::red, 3, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
|
||||
|
||||
QObject::connect(this, SIGNAL(changed()),
|
||||
agi, SLOT(modelChanged()));
|
||||
|
||||
agi->setInputPen(QPen(Qt::black, 0, Qt::SolidLine, Qt::RoundCap, Qt::RoundJoin));
|
||||
scene.addItem(agi);
|
||||
agi->hide();
|
||||
|
||||
// Setup input handlers. They get events before the scene gets them
|
||||
// and the input they generate is passed to the triangulation with
|
||||
// the signal/slot mechanism
|
||||
cai = new CGAL::Qt::GraphicsViewCircularArcInput<CircularKernel>(this, &scene);
|
||||
|
||||
QObject::connect(cai, SIGNAL(generate(CGAL::Object)),
|
||||
this, SLOT(processInput(CGAL::Object)));
|
||||
|
||||
// Manual handling of actions
|
||||
//
|
||||
QObject::connect(this->actionExit, SIGNAL(triggered()),
|
||||
this, SLOT(close()));
|
||||
|
||||
// Check two actions
|
||||
this->actionInsertCircularArc->setChecked(true);
|
||||
|
||||
//
|
||||
// Setup the scene and the view
|
||||
//
|
||||
scene.setItemIndexMethod(QGraphicsScene::NoIndex);
|
||||
scene.setSceneRect(-100, -100, 100, 100);
|
||||
this->graphicsView->setScene(&scene);
|
||||
|
||||
// Uncomment the following line to get antialiasing by default.
|
||||
// actionUse_Antialiasing->setChecked(true);
|
||||
|
||||
// Turn the vertical axis upside down
|
||||
this->graphicsView->scale(1, -1);
|
||||
|
||||
// The navigation adds zooming and translation functionality to the
|
||||
// QGraphicsView
|
||||
this->addNavigation(this->graphicsView);
|
||||
|
||||
this->setupStatusBar();
|
||||
this->setupOptionsMenu();
|
||||
this->addAboutDemo(":/cgal/help/about_Circular_kernel_2.html");
|
||||
this->addAboutCGAL();
|
||||
}
|
||||
|
||||
|
||||
void
|
||||
MainWindow::processInput(CGAL::Object o)
|
||||
{
|
||||
std::cout << "process input" << std::endl;
|
||||
Circular_arc_2 ca;
|
||||
Line_arc_2 la;
|
||||
bool is_circular = false;
|
||||
|
||||
if(assign(ca, o)){
|
||||
is_circular = true;
|
||||
} else if(! assign(la, o)){
|
||||
std::cerr << "unknown object" << std::endl;
|
||||
return;
|
||||
}
|
||||
|
||||
for(std::vector<CGAL::Object>::iterator it = arcs.begin(); it != arcs.end(); ++it){
|
||||
Circular_arc_2 vca;
|
||||
Line_arc_2 vla;
|
||||
if(assign(vca, *it)){
|
||||
if(is_circular){
|
||||
CGAL::intersection(ca, vca, std::back_inserter(intersections));
|
||||
} else {
|
||||
CGAL::intersection(la, vca, std::back_inserter(intersections));
|
||||
}
|
||||
} else if(assign(vla, *it)){
|
||||
if(is_circular){
|
||||
CGAL::intersection(ca, vla, std::back_inserter(intersections));
|
||||
} else {
|
||||
CGAL::intersection(la, vla, std::back_inserter(intersections));
|
||||
}
|
||||
}
|
||||
}
|
||||
arcs.push_back(o);
|
||||
emit(changed());
|
||||
}
|
||||
|
||||
|
||||
/*
|
||||
* Qt Automatic Connections
|
||||
* http://doc.trolltech.com/4.4/designer-using-a-component.html#automatic-connections
|
||||
*
|
||||
* setupUi(this) generates connections to the slots named
|
||||
* "on_<action_name>_<signal_name>"
|
||||
*/
|
||||
|
||||
void
|
||||
MainWindow::on_actionInsertCircularArc_toggled(bool checked)
|
||||
{
|
||||
if(checked){
|
||||
scene.installEventFilter(cai);
|
||||
} else {
|
||||
scene.removeEventFilter(cai);
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
MainWindow::on_actionClear_triggered()
|
||||
{
|
||||
arcs.clear();
|
||||
intersections.clear();
|
||||
emit(changed());
|
||||
}
|
||||
|
||||
void
|
||||
MainWindow::on_actionLoadLineAndCircularArcs_triggered()
|
||||
{
|
||||
QString fileName = QFileDialog::getOpenFileName(this,
|
||||
tr("Open Line and Circular Arc File"),
|
||||
".",
|
||||
tr("Edge files (*.arc)\n"));
|
||||
if(! fileName.isEmpty()){
|
||||
|
||||
std::ifstream ifs(qPrintable(fileName));
|
||||
char c;
|
||||
double x,y;
|
||||
Segment_2 s;
|
||||
|
||||
while(ifs >> c){
|
||||
if(c == 's'){
|
||||
ifs >> x >> y;
|
||||
Point_2 p(x,y);
|
||||
ifs >> x >> y;
|
||||
Point_2 q(x,y);
|
||||
|
||||
Line_arc_2 la(Segment_2(p,q));
|
||||
for(std::vector<CGAL::Object>::iterator it = arcs.begin(); it != arcs.end(); ++it){
|
||||
Circular_arc_2 vca;
|
||||
Line_arc_2 vla;
|
||||
if(assign(vca, *it)){
|
||||
CGAL::intersection(la, vca, std::back_inserter(intersections));
|
||||
} else if(assign(vla, *it)){
|
||||
CGAL::intersection(la, vla, std::back_inserter(intersections));
|
||||
}
|
||||
}
|
||||
arcs.push_back(make_object(la));
|
||||
} else if(c == 'c'){
|
||||
ifs >> x >> y;
|
||||
Point_2 p(x,y);
|
||||
ifs >> x >> y;
|
||||
Point_2 q(x,y);
|
||||
ifs >> x >> y;
|
||||
Point_2 r(x,y);
|
||||
Circular_arc_2 ca(p,q,r);
|
||||
for(std::vector<CGAL::Object>::iterator it = arcs.begin(); it != arcs.end(); ++it){
|
||||
Circular_arc_2 vca;
|
||||
Line_arc_2 vla;
|
||||
if(assign(vca, *it)){
|
||||
CGAL::intersection(ca, vca, std::back_inserter(intersections));
|
||||
} else if(assign(vla, *it)){
|
||||
CGAL::intersection(ca, vla, std::back_inserter(intersections));
|
||||
}
|
||||
}
|
||||
arcs.push_back(make_object(ca));
|
||||
}
|
||||
}
|
||||
emit (changed());
|
||||
}
|
||||
}
|
||||
|
||||
void
|
||||
MainWindow::on_actionRecenter_triggered()
|
||||
{
|
||||
this->graphicsView->setSceneRect(agi->boundingRect());
|
||||
this->graphicsView->fitInView(agi->boundingRect(), Qt::KeepAspectRatio);
|
||||
}
|
||||
|
||||
|
||||
#include "Circular_kernel_2.moc"
|
||||
|
||||
int main(int argc, char **argv)
|
||||
{
|
||||
QApplication app(argc, argv);
|
||||
|
||||
// Import resources from libCGALQt4.
|
||||
// See http://doc.trolltech.com/4.4/qdir.html#Q_INIT_RESOURCE
|
||||
Q_INIT_RESOURCE(File);
|
||||
Q_INIT_RESOURCE(Triangulation_2);
|
||||
Q_INIT_RESOURCE(Input);
|
||||
// Q_INIT_RESOURCE(Logos);
|
||||
|
||||
MainWindow mainWindow;
|
||||
mainWindow.show();
|
||||
return app.exec();
|
||||
}
|
||||
Reference in New Issue
Block a user