CGAL 4.7 - Manual: Kernel_23/exact.cpp

\( \newcommand{\E}{\mathrm{E}} \) \( \newcommand{\A}{\mathrm{A}} \) \( \newcommand{\R}{\mathrm{R}} \) \( \newcommand{\N}{\mathrm{N}} \) \( \newcommand{\Q}{\mathrm{Q}} \) \( \newcommand{\Z}{\mathrm{Z}} \) \( \def\ccSum #1#2#3{ \sum_{#1}^{#2}{#3} } \def\ccProd #1#2#3{ \sum_{#1}^{#2}{#3} }\)

CGAL 4.7 - Manual

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All Classes Namespaces Files Functions Variables Typedefs Enumerations Enumerator Friends Groups Pages
Kernel_23/exact.cpp
#include <iostream>
#include <CGAL/Exact_predicates_exact_constructions_kernel.h>
#include <sstream>
typedef CGAL::Exact_predicates_exact_constructions_kernel Kernel;
typedef Kernel::Point_2 Point_2;
int main()
{
Point_2 p(0, 0.3), q, r(2, 0.9);
{
q = Point_2(1, 0.6);
std::cout << ( CGAL::collinear(p,q,r) ? "collinear\n" : "not collinear\n");
}
{
std::istringstream input("0 0.3 1 0.6 2 0.9");
input >> p >> q >> r;
std::cout << (CGAL::collinear(p,q,r) ? "collinear\n" : "not collinear\n");
}
{
q = CGAL::midpoint(p,r);
std::cout << (CGAL::collinear(p,q,r) ? "collinear\n" : "not collinear\n");
}
return 0;
}