CGAL 6.1 - Manual

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Kernel_23/points_and_segment.cpp
#include <iostream>
#include <CGAL/Simple_cartesian.h>
typedef CGAL::Simple_cartesian<double> Kernel;
typedef Kernel::Point_2 Point_2;
typedef Kernel::Segment_2 Segment_2;
int main()
{
Point_2 p(1,1), q(10,10);
std::cout << "p = " << p << std::endl;
std::cout << "q = " << q.x() << " " << q.y() << std::endl;
std::cout << "sqdist(p,q) = "
<< CGAL::squared_distance(p,q) << std::endl;
Segment_2 s(p,q);
Point_2 m(5, 9);
std::cout << "m = " << m << std::endl;
std::cout << "sqdist(Segment_2(p,q), m) = "
<< CGAL::squared_distance(s,m) << std::endl;
std::cout << "p, q, and m ";
switch (CGAL::orientation(p,q,m)){
case CGAL::COLLINEAR:
std::cout << "are collinear\n";
break;
case CGAL::LEFT_TURN:
std::cout << "make a left turn\n";
break;
case CGAL::RIGHT_TURN:
std::cout << "make a right turn\n";
break;
}
std::cout << " midpoint(p,q) = " << CGAL::midpoint(p,q) << std::endl;
return 0;
}
Kernel::Point_2
Kernel::Segment_2
CGAL::RIGHT_TURN
const CGAL::Orientation RIGHT_TURN
CGAL::LEFT_TURN
const CGAL::Orientation LEFT_TURN
CGAL::COLLINEAR
const CGAL::Orientation COLLINEAR
CGAL::midpoint
CGAL::Point_2< Kernel > midpoint(const CGAL::Point_2< Kernel > &p, const CGAL::Point_2< Kernel > &q)
CGAL::orientation
Orientation orientation(const CGAL::Point_2< Kernel > &p, const CGAL::Point_2< Kernel > &q, const CGAL::Point_2< Kernel > &r)
CGAL::squared_distance
Kernel::FT squared_distance(Type1< Kernel > obj1, Type2< Kernel > obj2)
Kernel
CGAL::Simple_cartesian