Small OpenGL based c++ rendering library
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quaternion.h 2.0KB

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  1. /* libsegl - Sebas Extended GL Library
  2. * Collection of Opengl/3D-Math helpers
  3. *
  4. * Copyright (c) 2008 by Sebastian Lohff, seba@seba-geek.de
  5. * http://www.seba-geek.de
  6. *
  7. * This library is free software; you can redistribute it and/or
  8. * modify it under the terms of the GNU Library General Public
  9. * License as published by the Free Software Foundation; either
  10. * version 2 of the License, or (at your option) any later version.
  11. *
  12. * This library 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 GNU
  15. * Library General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU Library General Public
  18. * License along with this library; if not, write to the
  19. * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  20. * Boston, MA 02110-1301, USA.
  21. */
  22. #ifndef __QUATERNION_H
  23. #define __QUATERNION_H
  24. #include <iostream>
  25. #include <cmath>
  26. #include <SDL_opengl.h>
  27. // #include "rotationsmatrix.h"
  28. #include "punkt3d.h"
  29. #include "emath.h"
  30. namespace segl {
  31. class Quaternion {
  32. private:
  33. float x, y, z, w;
  34. public:
  35. Quaternion();
  36. Quaternion(float _x, float _y, float _z, float _w);
  37. Quaternion(float deg, Punkt3D p);
  38. Quaternion(float _x, float _y, float _z);
  39. void set(float rotx, float roty, float rotz);
  40. void set(float deg, Punkt3D axis);
  41. void normalize();
  42. Quaternion getConjugate();
  43. // Rotationsmatrix getRotMat();
  44. Punkt3D rotP3D(const Punkt3D &p);
  45. Quaternion operator*(const Quaternion&);
  46. };
  47. // class Quaternion {
  48. // private:
  49. // float w;
  50. // float x,y,z;
  51. // public:
  52. // Quaternion();
  53. // void createFromRotation(float, float, float, float);
  54. //
  55. //
  56. // void createGlMatrix(GLfloat*);
  57. // Punkt3D getDirectionVector();
  58. // Punkt3D getDirectionVector(GLfloat*);
  59. //
  60. // Quaternion operator*(const Quaternion&);
  61. //
  62. //
  63. // };
  64. //
  65. // void glMultMatrixf(Quaternion);
  66. } // namespace segl
  67. #endif