| 1 | // Copyright (C) 2006 Erik Dahlberg |
| 2 | // |
| 3 | // This file is part of LSystem3D. |
| 4 | // |
| 5 | // LSystem3D is free software; you can redistribute it and/or |
| 6 | // modify it under the terms of the GNU General Public License |
| 7 | // as published by the Free Software Foundation; either version 2 |
| 8 | // of the License, or (at your option) any later version. |
| 9 | // |
| 10 | // LSystem3D is distributed in the hope that it will be useful, |
| 11 | // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | // GNU General Public License for more details. |
| 14 | // |
| 15 | // You should have received a copy of the GNU General Public License |
| 16 | // along with LSystem3D; if not, write to the Free Software |
| 17 | // Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| 18 | |
| 19 | |
| 20 | |
| 21 | |
| 22 | #ifndef VECTOR_H |
| 23 | #define VECTOR_H |
| 24 | |
| 25 | #include "coordinate.h" |
| 26 | |
| 27 | |
| 28 | |
| 29 | /** |
| 30 | * 3D vector |
| 31 | */ |
| 32 | class Vector : public Coordinate |
| 33 | { |
| 34 | public: |
| 35 | |
| 36 | /** |
| 37 | * Constructor |
| 38 | * @param x the x-coordinate |
| 39 | * @param y the y-coordinate |
| 40 | * @param z the z-coordinate |
| 41 | */ |
| 42 | Vector(double x = 0.0, double y = 1.0, double z = 0.0); |
| 43 | |
| 44 | /** |
| 45 | * Destructor |
| 46 | */ |
| 47 | ~Vector(); |
| 48 | |
| 49 | |
| 50 | /** |
| 51 | * Normalize vector |
| 52 | */ |
| 53 | void normalize(); |
| 54 | |
| 55 | /** |
| 56 | * Rotate around another vector |
| 57 | * @param angle rotation angle |
| 58 | * @param vector arbitrary vector to rotate around |
| 59 | */ |
| 60 | void rotate(double angle, Vector vector); |
| 61 | |
| 62 | |
| 63 | /** |
| 64 | * Get scalar product of two vectors |
| 65 | * @param vector arbitrary vector |
| 66 | * @return the scalar product |
| 67 | */ |
| 68 | double getScalarProduct(Vector vector); |
| 69 | |
| 70 | /** |
| 71 | * Get cross product of two vectors |
| 72 | * @param vector arbitrary vector |
| 73 | * @return the cross product |
| 74 | */ |
| 75 | Vector getCrossProduct(Vector vector); |
| 76 | |
| 77 | /** |
| 78 | * Get angle between two vectors |
| 79 | * @param vector the second (normalized) vector |
| 80 | * @return the angle, in degrees |
| 81 | */ |
| 82 | double getAngle(Vector vector); |
| 83 | }; |
| 84 | |
| 85 | |
| 86 | |
| 87 | #endif |