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C++ Tr::insert方法代码示例

本文整理汇总了C++中Tr::insert方法的典型用法代码示例。如果您正苦于以下问题:C++ Tr::insert方法的具体用法?C++ Tr::insert怎么用?C++ Tr::insert使用的例子?那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在Tr的用法示例。


在下文中一共展示了Tr::insert方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的C++代码示例。

示例1: FT

void
_test_surface_neighbors_3_sphere( const Tr & )
{
  Tr T;

  int n=200, m=20;
  double r = 3;

  typedef typename Tr::Geom_traits                 Gt;
  typedef typename Gt::Point_3                     Point;

  std::vector<Point> points;
  points.reserve(n+m);

  // Create n+m-4 points on a sphere of radius 2
  CGAL::Random_points_on_sphere_3<Point> g(r);
  CGAL::cpp11::copy_n( g, n+m, std::back_inserter(points));

  for(int i=0; i<n ; i++)
    T.insert(points[i]);

  //test with different calls:
  int k=0;
  for(int i=n;i<n+m;i++)
  {
    test_coords_and_neighbors(T, points[i],
                              typename Gt::Vector_3(points[i]-CGAL::ORIGIN),
                              typename Gt::FT(0.5),++k % 8);
  }
}
开发者ID:lrineau,项目名称:cgal,代码行数:30,代码来源:_test_surface_neighbors_3.cpp

示例2: main

int main()
{
  Tr::Point p1(0,0,0);
  Tr::Point p2(1,0,0);
  Tr::Point p3(0,1,0);
  Tr::Point p4(0,0,1);
  
  Tr tr;
  tr.insert(p1);
  tr.insert(p2);
  tr.insert(p3);
  tr.insert(p4);
  
  Tr::Cell_handle ch = tr.finite_cells_begin();
  int k = 0;
  Tr::Facet f = std::make_pair(ch,k);
  Tr::Cell::Subdomain_index sub_index = 1;
  Tr::Cell::Surface_patch_index surf_index = 2;
  Tr::Cell::Surface_patch_index surf_index_bis = 21;
  Tr::Vertex::Index index (surf_index);
  Tr::Vertex::Index index_bis(surf_index_bis);
  
  // Init cell
  tr.dual(ch);
  ch->set_subdomain_index(sub_index);
  
  // Init facet
  Tr::Bare_point facet_circum =
    tr.geom_traits().construct_weighted_circumcenter_3_object()(
      tr.point(ch, k+1), tr.point(ch, k+2), tr.point(ch, k+3));

  ch->set_surface_patch_index(k,surf_index);
  ch->set_facet_surface_center(k,facet_circum);
  ch->set_facet_surface_center_index(k,index);
  
  // Init vertices
  ch->vertex(0)->set_dimension(2);
  ch->vertex(1)->set_dimension(2);
  ch->vertex(2)->set_dimension(2);
  ch->vertex(3)->set_dimension(2);
  
  ch->vertex(0)->set_index(index);
  ch->vertex(1)->set_index(index);
  ch->vertex(2)->set_index(index_bis);
  ch->vertex(3)->set_index(index_bis);
  
  // -----------------------------------
  // Test edge criteria
  // -----------------------------------
  Tr::Bare_point bp1 = tr.geom_traits().construct_point_3_object()(p1);

  Mc ec1(edge_size = 1);
  assert( ec1.edge_criteria_object().sizing_field(bp1,1,index) == 1 );
  
  Mc ec2(edge_sizing_field = Esf(2));
  assert( ec2.edge_criteria_object().sizing_field(bp1,1,index) == 2 );

  Mc ec3(edge_sizing_field = 3.);
  assert( ec3.edge_criteria_object().sizing_field(bp1,1,index) == 3 );
  
  Mc ec4(edge_size = 4.1,
         edge_sizing_field = Esf(4.2));
  assert( ec4.edge_criteria_object().sizing_field(bp1,1,index) == 4.1 );
  
  Mc ec5(sizing_field = 5.);
  assert( ec5.edge_criteria_object().sizing_field(bp1,1,index) == 5 );
  
  Mc ec6(sizing_field = 6.1,
         edge_sizing_field = 6.2);
  assert( ec6.edge_criteria_object().sizing_field(bp1,1,index) == 6.2 );
  
  Mc ec7(sizing_field = 7.1,
         edge_size = 7.2);
  assert( ec7.edge_criteria_object().sizing_field(bp1,1,index) == 7.2 );
  
  
  // -----------------------------------
  // Test facet criteria
  // -----------------------------------
  typedef Tr::Geom_traits::FT FT;
  Tr::Geom_traits::Compute_squared_radius_3 squared_radius = tr.geom_traits().compute_squared_radius_3_object();
  Tr::Geom_traits::Construct_point_3 cp = tr.geom_traits().construct_point_3_object();

  FT radius_facet = CGAL::sqrt(squared_radius(cp(tr.point(ch, k+1)),
                                              cp(tr.point(ch, k+2)),
                                              cp(tr.point(ch, k+3))));

  FT facet_size_ok = radius_facet*FT(10);
  FT facet_size_nok = radius_facet/FT(10);

  Mc fc1(facet_size = facet_size_ok);
  assert( ! fc1.facet_criteria_object()(tr, f) );

  Mc fc2(facet_sizing_field = facet_size_ok);
  assert( ! fc2.facet_criteria_object()(tr, f) );

  Mc fc3(facet_sizing_field = Fsf(facet_size_ok));
  assert( ! fc3.facet_criteria_object()(tr, f) );

  Mc fc4(facet_sizing_field = facet_size_nok,
//.........这里部分代码省略.........
开发者ID:lrineau,项目名称:cgal,代码行数:101,代码来源:test_mesh_criteria_creation.cpp

示例3: g

void
_test_surface_neighbors_3_cube(const Tr &, const Transformation&
                               transform, const int n = 75,
                               typename Tr::Geom_traits::FT tolerance = typename Tr::Geom_traits::FT(1e-29),
                               bool grid=true)
{
  Tr T;

  int m=10;
  double r = 3;

  typedef typename Tr::Geom_traits                Gt;
  typedef typename Gt::FT                         Coord_type;
  typedef typename Gt::Point_3                    Point;
  typedef typename Gt::Point_2                    Point_2;
  typedef typename Gt::Vector_3                   Vector;

  //data points: generate random points in a square of length r
  std::vector<Point_2> points_2_data;
  points_2_data.reserve(n);

  if(grid)
  {
    CGAL::points_on_square_grid_2(r, n, std::back_inserter(points_2_data),
                                  CGAL::Creator_uniform_2<Coord_type,Point_2>());
  }
  else
  {
    CGAL::Random_points_in_square_2<Point_2> g(r);
    CGAL::cpp11::copy_n(g, n, std::back_inserter(points_2_data));
  }
  for(int i=0; i < n; i++)
  {
    T.insert(transform(Point(points_2_data[i].x(),points_2_data[i].y(), -r)));
    T.insert(transform(Point(points_2_data[i].x(),points_2_data[i].y(), r)));
    T.insert(transform(Point(-r, points_2_data[i].x(),points_2_data[i].y())));
    T.insert(transform(Point(r, points_2_data[i].x(), points_2_data[i].y())));
    T.insert(transform(Point(points_2_data[i].x(), -r, points_2_data[i].y())));
    T.insert(transform(Point(points_2_data[i].x(), r, points_2_data[i].y())));
  }

  //test_points: generate random points in a square of length r
  std::vector<Point_2> points_2_test;
  points_2_test.reserve(m);
  CGAL::Random_points_in_square_2<Point_2> g2(r-1.0);
  CGAL::cpp11::copy_n(g2, m, std::back_inserter(points_2_test));

  int k=0;
  for(int i=0;i<m;i++)
  {
    //test point on z=r plane:
    test_coords_and_neighbors(T,transform(Point(points_2_test[i].x(),
                                                points_2_test[i].y(), r)),
                              transform(Vector(0,0,1)),tolerance, ++k % 8);
    //test point on x=-r plane:
    test_coords_and_neighbors(T,transform(Point(-r, points_2_test[i].x(),
                                                points_2_test[i].y())),
                              transform(Vector(-1,0,0)),tolerance, ++k % 8 );
    //test point on x=r plane:
    test_coords_and_neighbors(T,transform(Point(r, points_2_test[i].x(),
                                                points_2_test[i].y())),
                              transform(Vector(1,0,0)),tolerance,++k % 8 );
    //test point on y=-r plane:
    test_coords_and_neighbors(T,transform(Point(points_2_test[i].x(),
                                                -r,points_2_test[i].y())),
                              transform(Vector(0,-1,0)),tolerance,++k % 8 );
    //test point on y=r plane:
    test_coords_and_neighbors(T,transform(Point(points_2_test[i].x(),
                                                r,points_2_test[i].y())),
                              transform(Vector(0,1,0)),tolerance,++k % 8);
  }

  //test a sample point:
  //with Delaunay triangulation filering:
  test_coords_and_neighbors(T,transform(Point(points_2_data[n/2].x(),
                                        points_2_data[n/2].y(), r)),
                            transform(Vector(0,0,1)),Coord_type(0),0);

  //considering all points:
  test_coords_and_neighbors(T,transform(Point(points_2_data[n/2].x(),
                                        points_2_data[n/2].y(), r)),
                            transform(Vector(0,0,1)),Coord_type(0),4);
}
开发者ID:lrineau,项目名称:cgal,代码行数:83,代码来源:_test_surface_neighbors_3.cpp


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