git://git.uio.no / u / mrichter / AliRoot.git / blame
| Commit | Line | Data |
|---|---|---|
| da32329d AM |
1 | /////////////////////////////////////////////////////////////////////////// |
| 2 | // | |
| 3 | // Copyright 2010 | |
| 4 | // | |
| 5 | // This file is part of starlight. | |
| 6 | // | |
| 7 | // starlight is free software: you can redistribute it and/or modify | |
| 8 | // it under the terms of the GNU General Public License as published by | |
| 9 | // the Free Software Foundation, either version 3 of the License, or | |
| 10 | // (at your option) any later version. | |
| 11 | // | |
| 12 | // starlight is distributed in the hope that it will be useful, | |
| 13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| 14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| 15 | // GNU General Public License for more details. | |
| 16 | // | |
| 17 | // You should have received a copy of the GNU General Public License | |
| 18 | // along with starlight. If not, see <http://www.gnu.org/licenses/>. | |
| 19 | // | |
| 20 | /////////////////////////////////////////////////////////////////////////// | |
| 21 | // | |
| 22 | // File and Version Information: | |
| 23 | // $Rev:: $: revision of last commit | |
| 24 | // $Author:: $: author of last commit | |
| 25 | // $Date:: $: date of last commit | |
| 26 | // | |
| 27 | // Description: | |
| 28 | // | |
| 29 | // | |
| 30 | // | |
| 31 | /////////////////////////////////////////////////////////////////////////// | |
| 32 | ||
| 33 | ||
| 34 | #ifndef VECTOR3_H | |
| 35 | #define VECTOR3_H | |
| 36 | ||
| 37 | ||
| 38 | #include <iostream> | |
| 39 | #include <cmath> | |
| 40 | ||
| 41 | ||
| 42 | class vector3 | |
| 43 | { | |
| 44 | public: | |
| 45 | vector3(); | |
| 46 | vector3(double *vec); | |
| 47 | vector3(double x, double y, double z); | |
| 48 | virtual ~vector3(); | |
| 49 | ||
| 50 | const double* GetVector() const { return _vec; } | |
| 51 | ||
| 52 | void SetVector(double x, double y, double z); | |
| 53 | void SetVector(double *vec); | |
| 54 | ||
| 55 | vector3& operator =(const vector3& vec) | |
| 56 | { | |
| 57 | if (this != &vec) | |
| 58 | for (unsigned int i = 0; i < 3; ++i) | |
| 59 | _vec[i] = vec._vec[i]; | |
| 60 | return *this; | |
| 61 | } | |
| 62 | ||
| 63 | vector3& operator +=(const vector3& vec) | |
| 64 | { | |
| 65 | for (unsigned int i = 0; i < 3; ++i) | |
| 66 | _vec[i] += vec._vec[i]; | |
| 67 | return *this; | |
| 68 | } | |
| 69 | vector3& operator -=(const vector3& vec) | |
| 70 | { | |
| 71 | for (unsigned int i = 0; i < 3; ++i) | |
| 72 | _vec[i] -= vec._vec[i]; | |
| 73 | return *this; | |
| 74 | } | |
| 75 | ||
| 76 | double X() const { return _vec[0]; } | |
| 77 | double Y() const { return _vec[1]; } | |
| 78 | double Z() const { return _vec[2]; } | |
| 79 | ||
| 80 | double Mag2() const { return _vec[0] * _vec[0] + _vec[1] * _vec[1] + _vec[2] * _vec[2]; } | |
| 81 | double Mag () const { return sqrt(Mag2()); } | |
| 82 | ||
| 83 | friend std::ostream& operator << (std::ostream& out, | |
| 84 | const vector3& vec) | |
| 85 | { | |
| 86 | out << "(" << vec.X() << ", " << vec.Y() << ", " << vec.Z() << ")"; | |
| 87 | return out; | |
| 88 | } | |
| 89 | ||
| 90 | private: | |
| 91 | ||
| 92 | double _vec[3]; | |
| 93 | ||
| 94 | }; | |
| 95 | ||
| 96 | ||
| 97 | #endif // VECTOR3_H |