CGAL 4.12 - 2D and 3D Linear Geometry Kernel
CGAL::squared_distance()
#include <CGAL/squared_distance_2.h> //for 2D functions
#include <CGAL/squared_distance_3.h> //for 3D functions

## Functions

template<typename Kernel >
Kernel::FT CGAL::squared_distance (Type1< Kernel > obj1, Type2< Kernel > obj2)
computes the square of the Euclidean distance between two geometric objects. More...

## ◆ squared_distance()

template<typename Kernel >
 Kernel::FT CGAL::squared_distance ( Type1< Kernel > obj1, Type2< Kernel > obj2 )

#include <CGAL/squared_distance_2.h>

computes the square of the Euclidean distance between two geometric objects.

For arbitrary geometric objects obj1 and obj2 the squared distance is defined as the minimal squared_distance(p1, p2), where p1 is a point of obj1 and p2 is a point of obj2. Note that for objects that have an inside (a bounded region), this inside is part of the object. So, the squared distance from a point inside is zero, not the squared distance to the closest point on the boundary.

In 2D, the types Type1 and Type2 can be any of the following:

• Point_2
• Line_2
• Ray_2
• Segment_2
• Triangle_2

as well as any combination of Kernel::Point_2 and Kernel::Weighted_point_2

In 3D, the types Type1 and Type2 can be any of the following:

• Point_3
• Line_3
• Ray_3
• Segment_3
• Plane_3

as well as combinations Point_3/Triangle_3, and Weighted_point_3/Triangle_3.

CGAL::compare_distance_to_point()
CGAL::compare_signed_distance_to_line()
CGAL::compare_signed_distance_to_plane()
CGAL::has_larger_distance_to_point()
CGAL::has_larger_signed_distance_to_line()
CGAL::has_larger_signed_distance_to_plane()
CGAL::has_smaller_distance_to_point()
CGAL::has_smaller_signed_distance_to_line()
CGAL::has_smaller_signed_distance_to_plane()