cgal/Distance_2/test/Distance_2/tst21.cpp

37 lines
946 B
C++

#include "numrep1.h"
#include <CGAL/Point_2.h>
#include <CGAL/squared_distance_2_1.h>
#include "numrep2.h"
typedef CGAL::Point_2< TestR > point_t;
typedef CGAL::Segment_2< TestR > segment_t;
using std::cout;
int main()
{
randomint ri;
int x1, x2, y1, y2, w1, w2;
TestR::FT d, d2;
std::cin >> x1 >> y1;
if (!std::cin)
return 1;
w1 = ri.next();
point_t pt(to_nt(w1*x1), to_nt(w1*y1), to_nt(w1));
std::cin >> x1 >> y1 >> x2 >> y2;
if (!std::cin)
return 1;
w1 = ri.next();
w2 = ri.next();
point_t tp3(to_nt(w1*x1), to_nt(w1*y1), to_nt(w1));
point_t tp4(to_nt(w2*x2), to_nt(w2*y2), to_nt(w2));
segment_t seg(tp3, tp4);
d = CGAL::squared_distance(pt, seg);
cout << CGAL::to_double(d) << '\n';
d2 = CGAL::Squared_distance_to_segment<TestR>(seg)(pt);
if (d2 != d)
cout<<"Two methods compute different results: "<<d <<" and "<<d2<<"\n";
return (d2 == d) ? 0 : 1;
}