138 lines
3.7 KiB
C++
138 lines
3.7 KiB
C++
// Copyright (c) 2006-2009 INRIA Sophia-Antipolis (France).
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// All rights reserved.
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//
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// This file is part of CGAL (www.cgal.org).
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//
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// $URL: https://github.com/CGAL/cgal/blob/v5.1/Periodic_3_triangulation_3/include/CGAL/Periodic_3_offset_3.h $
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// $Id: Periodic_3_offset_3.h 254d60f 2019-10-19T15:23:19+02:00 Sébastien Loriot
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// SPDX-License-Identifier: GPL-3.0-or-later OR LicenseRef-Commercial
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//
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//
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// Author(s) : Nico Kruithof <Nico.Kruithof@sophia.inria.fr>
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// Manuel Caroli <Manuel.Caroli@sophia.inria.fr>
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#ifndef CGAL_PERIODIC_3_OFFSET_H
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#define CGAL_PERIODIC_3_OFFSET_H
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#include <CGAL/license/Periodic_3_triangulation_3.h>
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#include <CGAL/basic.h>
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#include <CGAL/triangulation_assertions.h>
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#include <CGAL/Cartesian.h>
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namespace CGAL {
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class Periodic_3_offset_3
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{
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template <class K2>
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friend std::ostream & operator<<(std::ostream &os,
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const Periodic_3_offset_3 &off);
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public:
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Periodic_3_offset_3() : _offx(0), _offy(0), _offz(0) {}
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Periodic_3_offset_3(int x, int y, int z) : _offx(x), _offy(y), _offz(z) {}
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bool is_null() const {
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return ((_offx | _offy | _offz) == 0);
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}
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int& x() { return _offx; }
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int x() const { return _offx; }
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int& y() { return _offy; }
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int y() const { return _offy; }
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int& z() { return _offz; }
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int z() const { return _offz; }
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int &operator[](int i) {
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if (i==0) return _offx;
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if (i==1) return _offy;
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CGAL_triangulation_assertion(i==2);
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return _offz;
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}
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int operator[](int i) const {
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if (i==0) return _offx;
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if (i==1) return _offy;
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CGAL_triangulation_assertion(i==2);
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return _offz;
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}
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void operator+=(const Periodic_3_offset_3 &other) {
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_offx += other._offx;
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_offy += other._offy;
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_offz += other._offz;
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}
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void operator-=(const Periodic_3_offset_3 &other) {
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_offx -= other._offx;
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_offy -= other._offy;
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_offz -= other._offz;
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}
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Periodic_3_offset_3 operator-() const {
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return Periodic_3_offset_3(-_offx,-_offy,-_offz);
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}
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bool operator==(const Periodic_3_offset_3 &other) const {
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return ((_offx == other._offx) &&
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(_offy == other._offy) &&
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(_offz == other._offz));
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}
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bool operator!=(const Periodic_3_offset_3 &other) const {
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return ((_offx != other._offx) ||
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(_offy != other._offy) ||
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(_offz != other._offz));
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}
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bool operator<(const Periodic_3_offset_3 &other) const {
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if (_offx != other._offx)
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return (_offx < other._offx);
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else {
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if (_offy != other._offy)
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return (_offy < other._offy);
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else {
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return (_offz < other._offz);
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}
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}
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}
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Periodic_3_offset_3 operator+(const Periodic_3_offset_3 &off2) const {
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return Periodic_3_offset_3(_offx+off2.x(), _offy+off2.y(), _offz+off2.z());
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}
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Periodic_3_offset_3 operator-(const Periodic_3_offset_3 &off2) const {
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return Periodic_3_offset_3(_offx-off2.x(), _offy-off2.y(), _offz-off2.z());
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}
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private:
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int _offx, _offy, _offz;
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};
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template <class K>
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inline Point_3<K> operator+(const Point_3<K> &p, const Periodic_3_offset_3 &off) {
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return (off.is_null() ? p : Point_3<K>(p.x()+off.x(), p.y()+off.y(), p.z()+off.z()));
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}
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inline std::ostream
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&operator<<(std::ostream &os, const Periodic_3_offset_3 &off) {
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if (is_ascii(os))
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os << off.x() << " " << off.y() << " " << off.z();
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else {
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write(os,off.x());
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write(os,off.y());
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write(os,off.z());
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}
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return os;
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}
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inline std::istream
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&operator>>(std::istream &is, Periodic_3_offset_3 &off) {
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int x=0,y=0,z=0;
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if (is_ascii(is))
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is >> x >> y >> z;
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else {
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read(is,x);
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read(is,y);
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read(is,z);
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}
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off = Periodic_3_offset_3(x,y,z);
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return is;
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}
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} //namespace CGAL
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#endif // CGAL_PERIODIC_3_OFFSET_H
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