CGAL 5.6 - 2D and 3D Linear Geometry Kernel
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Definition

Operations

A model of this concept must provide:

Kernel::Circle_2 operator() (Kernel::Point_2 const &center, Kernel::FT const &squared_radius, Orientation const &orientation=COUNTERCLOCKWISE)
 introduces a variable of type Kernel::Circle_2.
 
Kernel::Circle_2 operator() (Kernel::Point_2 const &p, Kernel::Point_2 const &q, Kernel::Point_2 const &r)
 introduces a variable of type Kernel::Circle_2.
 
Kernel::Circle_2 operator() (Kernel::Point_2 const &p, Kernel::Point_2 const &q, Orientation const &orientation=COUNTERCLOCKWISE)
 introduces a variable of type Kernel::Circle_2.
 
Kernel::Circle_2 operator() (Kernel::Point_2 const &center, Orientation const &orientation=COUNTERCLOCKWISE)
 introduces a variable of type Kernel::Circle_2.
 

Member Function Documentation

◆ operator()() [1/4]

Kernel::Circle_2 Kernel::ConstructCircle_2::operator() ( Kernel::Point_2 const &  center,
Kernel::FT const &  squared_radius,
Orientation const &  orientation = COUNTERCLOCKWISE 
)

introduces a variable of type Kernel::Circle_2.

It is initialized to the circle with center center, squared radius squared_radius and orientation orientation.

Precondition
orientation != CGAL::COLLINEAR and squared_radius >= 0.

◆ operator()() [2/4]

Kernel::Circle_2 Kernel::ConstructCircle_2::operator() ( Kernel::Point_2 const &  center,
Orientation const &  orientation = COUNTERCLOCKWISE 
)

introduces a variable of type Kernel::Circle_2.

It is initialized to the circle with center center, squared radius zero and orientation orientation.

Precondition
orientation != CGAL::COLLINEAR.
Postcondition
.is_degenerate() = true.

◆ operator()() [3/4]

Kernel::Circle_2 Kernel::ConstructCircle_2::operator() ( Kernel::Point_2 const &  p,
Kernel::Point_2 const &  q,
Kernel::Point_2 const &  r 
)

introduces a variable of type Kernel::Circle_2.

It is initialized to the unique circle which passes through the points p, q and r. The orientation of the circle is the orientation of the point triple p, q, r.

Precondition
p, q, and r are not collinear.

◆ operator()() [4/4]

Kernel::Circle_2 Kernel::ConstructCircle_2::operator() ( Kernel::Point_2 const &  p,
Kernel::Point_2 const &  q,
Orientation const &  orientation = COUNTERCLOCKWISE 
)

introduces a variable of type Kernel::Circle_2.

It is initialized to the circle with diameter pq and orientation orientation.

Precondition
orientation != CGAL::COLLINEAR.