1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
#include <CGAL/Exact_predicates_inexact_constructions_kernel.h>
#include <CGAL/Constrained_Delaunay_triangulation_2.h>
#include <CGAL/Triangulation_hierarchy_2.h>
#include <CGAL/Constrained_triangulation_plus_2.h>
#include <cassert>
#include <iostream>
typedef CGAL::Exact_predicates_inexact_constructions_kernel K;
typedef CGAL::Triangulation_vertex_base_2<K> Vbb;
typedef CGAL::Triangulation_hierarchy_vertex_base_2<Vbb> Vb;
typedef CGAL::Constrained_triangulation_face_base_2<K> Fb;
typedef CGAL::Triangulation_data_structure_2<Vb,Fb> TDS;
typedef CGAL::Exact_predicates_tag Itag;
typedef CGAL::Constrained_Delaunay_triangulation_2<K,TDS,Itag> CDT;
typedef CGAL::Triangulation_hierarchy_2<CDT> CDTH;
typedef CGAL::Constrained_triangulation_plus_2<CDTH> Triangulation;
typedef Triangulation::Point Point;
int
main( )
{
Triangulation cdt;
std::cout << "Inserting a grid 5 x 5 of constraints " << std::endl;
for (int i = 1; i < 6; ++i)
cdt.insert_constraint( Point(0,i), Point(6,i));
for (int j = 1; j < 6; ++j)
cdt.insert_constraint( Point(j,0), Point(j,6));
int count = 0;
for (Triangulation::Subconstraint_iterator scit = cdt.subconstraints_begin();
scit != cdt.subconstraints_end();
++scit) ++count;
std::cout << "The number of resulting constrained edges is ";
std::cout << count << std::endl;
//verbose mode of is_valid ; shows the number of vertices at each level
std::cout << "The number of vertices at successive levels" << std::endl;
assert(cdt.is_valid(true));
return 0;
}
|
