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#include "src/geometry/Z2/class/circle.hpp"
中心座標 $\boldsymbol{o} \in {\mathbb{Z}}^2$、半径 $r \in {\mathbb{Z}}_{\geq 0}$ の円を表す。
(1) Z2::Circle() (2) Z2::Circle(Z2::Point o, Z2 r)
Z2::Circle
o
r
Z2::Point center() const
円の中心座標を返す。
Z r() const
円の半径を返す。
その他、std::vector< Circle<Z> > のエイリアスとして Circles<Z> が定義されている。
std::vector< Circle<Z> >
Circles<Z>
#pragma once #include "src/geometry/Z2/class/point.hpp" #include <cassert> namespace luz::Z2 { template < typename Z > class Circle { Point< Z > o_; Z r_; public: Circle(): o_(0, 0), r_(0) {} Circle(Point< Z > o, Z r): o_(o), r_(r) { assert(r >= 0); } Point< Z > center() const { return o_; } Z r() const { return r_; } }; template < typename Z > using Circles = std::vector< Circle< Z > >; } // namespace luz::Z2
#line 2 "src/geometry/Z2/class/circle.hpp" #line 2 "src/geometry/Z2/class/point.hpp" #line 2 "src/geometry/Z2/class/vector.hpp" #include <vector> namespace luz::Z2 { template < typename Z > class Vector { Z x_, y_; public: Vector(): x_(0), y_(0) {} Vector(Z x, Z y): x_(x), y_(y) {} Z x() const { return x_; } Z y() const { return y_; } bool operator==(const Vector &v) const { return x_ == v.x_ and y_ == v.y_; } bool operator!=(const Vector &v) const { return x_ != v.x_ or y_ != v.y_; } Vector &operator+=(const Vector &v) { x_ += v.x_; y_ += v.y_; return *this; } Vector &operator-=(const Vector &v) { x_ -= v.x_; y_ -= v.y_; return *this; } Vector operator+(const Vector &v) const { return Vector(*this) += v; } Vector operator-(const Vector &v) const { return Vector(*this) -= v; } Vector operator+() const { return *this; } Vector operator-() const { return Vector() - *this; } }; template < typename Z > using Vectors = std::vector< Vector< Z > >; } // namespace luz::Z2 #line 4 "src/geometry/Z2/class/point.hpp" #line 6 "src/geometry/Z2/class/point.hpp" namespace luz::Z2 { template < typename Z > using Point = Vector< Z >; template < typename Z > using Points = std::vector< Point< Z > >; } // namespace luz::Z2 #line 4 "src/geometry/Z2/class/circle.hpp" #include <cassert> namespace luz::Z2 { template < typename Z > class Circle { Point< Z > o_; Z r_; public: Circle(): o_(0, 0), r_(0) {} Circle(Point< Z > o, Z r): o_(o), r_(r) { assert(r >= 0); } Point< Z > center() const { return o_; } Z r() const { return r_; } }; template < typename Z > using Circles = std::vector< Circle< Z > >; } // namespace luz::Z2