Пример #1
0
int main(int argc, char** argv)
{
    //Reading polygon files
    Polygon_2 poly;
    QPolygonF poly_qt;
    read_file("models/turtle_w.txt", poly, poly_qt);

    //Compute straight skeleton
    //*****This program now works for polygon WITHOUT HOLES.
    SsPtr iss = CGAL::create_interior_straight_skeleton_2(poly.vertices_begin(), poly.vertices_end());
    SsPtr ess = CGAL::create_exterior_straight_skeleton_2(EMaxOffset, poly);

    //Constructing the graph combining the straight skeleton and polygon
    std::vector<BridgingGraph> bg;
    construct_bridging_graph(poly, *iss, *ess, bg);

    //Compute perpendiculars
    std::list<Perpendiculars> ppd;
    generate_perpendiculars(*iss, *ess, bg, ppd);
    deduplicate_perpendiculars<K>(ppd);

    //Assign mountain and valley
    std::list<Segment> mt;
    std::list<Segment> vl;
    MountainValley<K>(*iss, *ess, bg, ppd,  mt, vl);

    //Extracts skeleton from cgal and converts them to qt
    std::list<QLineF> bis_qt;
    convert_straight_skeleton(*iss, bis_qt);
    convert_straight_skeleton(*ess, bis_qt);

    std::list<QLineF> ppd_qt;
    convert_perpendiculars<K>(ppd, ppd_qt);

    std::list<QLineF> mt_qt, vl_qt;
    convert_mountain_valley<K>(mt, mt_qt);
    convert_mountain_valley<K>(vl, vl_qt);

    //SETUP QT
    //Create applicaiton
    QApplication app(argc, argv);

    //Create scene
    QGraphicsScene scene;
    createQTscene(scene, poly_qt, bis_qt, ppd_qt, mt_qt, vl_qt);

    //Create view
    QGraphicsView* view = new QGraphicsView(&scene);
    CGAL::Qt::GraphicsViewNavigation nav;
    view->installEventFilter(&nav);
    view->viewport()->installEventFilter(&nav);
    view->setRenderHint(QPainter::Antialiasing);
    //view->keyPressEvent();

    //Show view
    view->show();

    return app.exec();
}
Пример #2
0
int main(int argc, char **argv)
{
    QApplication app(argc, argv);


    QGraphicsScene scene;
    scene.setSceneRect(0,0, 100, 100);
    scene.addRect(QRectF(0,0, 100, 100));
    scene.addLine(QLineF(0,0, 100, 100));
    scene.addLine(QLineF(0,100, 100, 0));

    QGraphicsView* view = new QGraphicsView(&scene);
    CGAL::Qt::GraphicsViewNavigation navigation;
    view->installEventFilter(&navigation);
    view->viewport()->installEventFilter(&navigation);
    view->setRenderHint(QPainter::Antialiasing);

    view->show();
    return app.exec();
}