/* * Copyright 2011 Steven Gribble * * This file is the solution to an exercise problem posed during * one of the UW CSE 333 lectures (333exercises). * * 333exercises is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * 333exercises is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with 333exercises. If not, see . */ // lec 10 exercise 1 #ifndef _LEC10_EX1_THREEDPOINT_H_ #define _LEC10_EX1_THREEDPOINT_H_ #include using namespace std; // A "ThreeDPoint" is a class representing a three-dimensional point. // Internally, a ThreeDPoint is represented with doubles for the x, y, // and z axis values. class ThreeDPoint { public: // Constructors; we use initialization lists to initialize. ThreeDPoint() : x_(0), y_(0), z_(0) { } ThreeDPoint(const double x, const double y, const double z) : x_(x), y_(y), z_(z) { } // Copy constructor. ThreeDPoint(const ThreeDPoint &pt); // Accessors (inlined). double get_x() const { return x_; }; double get_y() const { return y_; }; double get_z() const { return z_; }; // Inner product. double InnerProduct(const ThreeDPoint &pt) const; // Add, subtract operators. ThreeDPoint operator+(const ThreeDPoint &pt) const; ThreeDPoint operator-(const ThreeDPoint &pt) const; // Add/subtract and assign operators. ThreeDPoint &operator+=(const ThreeDPoint &pt); ThreeDPoint &operator-=(const ThreeDPoint &pt); // Assignment operator. ThreeDPoint &operator=(const ThreeDPoint &pt); // Override "<<" for std::ostream. friend ostream &operator<<(ostream &out, const ThreeDPoint &pt); private: double x_, y_, z_; }; #endif // _LEC10_EX1_THREEDPOINT_H_