C++ (Cpp) Finite_vertices_iterator示例

示例#1

文件： info_insert_with_pair_iterator_regular_2.cpp 项目： Asuzer/cgal

int main()
{
  std::vector< std::pair<Wpoint,unsigned> > points;
  points.push_back( std::make_pair(Wpoint(Point(0,0),2),0) );
  points.push_back( std::make_pair(Wpoint(Point(1,0),2),1) );
  points.push_back( std::make_pair(Wpoint(Point(0,1),2),2) );
  points.push_back( std::make_pair(Wpoint(Point(-4,54),2),3) );
  points.push_back( std::make_pair(Wpoint(Point(2,2),2),4) );
  points.push_back( std::make_pair(Wpoint(Point(-1,0),2),5) );

  Regular rt;
  rt.insert( points.begin(),points.end() );

  CGAL_assertion( rt.number_of_vertices() == 6 );

  // check that the info was correctly set.
  Regular::Finite_vertices_iterator vit;
  for (vit = rt.finite_vertices_begin(); vit != rt.finite_vertices_end(); ++vit)
    if( points[ vit->info() ].first != vit->point() ){
      std::cerr << "Error different info" << std::endl;
      exit(EXIT_FAILURE);
    }
  std::cout << "OK" << std::endl;

  return 0;
}

示例#2

文件： union_of_balls_view.cpp 项目： nicokruithof/molecular_surface_demo_tool

void UnionOfBallsView::draw(QPainter &painter, const Regular &regular, Regular::Finite_vertices_iterator &vit)
{
    std::list<Segment> segments;
    generate_circle(vit->point(), segments);

    if (regular.dimension() > 0) {
        Weighted_point wp = vit->point();
        const Regular::Geom_traits &gt = regular.geom_traits();
        Regular::Vertex_circulator adj_vit = regular.incident_vertices(vit);
        Regular::Vertex_circulator adj_vit_start = adj_vit;
        do {
            if (!regular.is_infinite(adj_vit)) {
                Line l = gt.construct_radical_axis_2_object()(wp, adj_vit->point());
                clip(segments, l);
            }
        } while (++adj_vit != adj_vit_start);
    }

    painter << segments;
}