Subversion Repositories Kolibri OS

Rev

Go to most recent revision | Blame | Last modification | View Log | RSS feed

  1. //
  2. // Copyright 2012 Francisco Jerez
  3. //
  4. // Permission is hereby granted, free of charge, to any person obtaining a
  5. // copy of this software and associated documentation files (the "Software"),
  6. // to deal in the Software without restriction, including without limitation
  7. // the rights to use, copy, modify, merge, publish, distribute, sublicense,
  8. // and/or sell copies of the Software, and to permit persons to whom the
  9. // Software is furnished to do so, subject to the following conditions:
  10. //
  11. // The above copyright notice and this permission notice shall be included in
  12. // all copies or substantial portions of the Software.
  13. //
  14. // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15. // IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16. // FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17. // THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18. // OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19. // ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20. // OTHER DEALINGS IN THE SOFTWARE.
  21. //
  22.  
  23. #ifndef __CORE_GEOMETRY_HPP__
  24. #define __CORE_GEOMETRY_HPP__
  25.  
  26. #include <array>
  27. #include <algorithm>
  28.  
  29. namespace clover {
  30.    ///
  31.    /// N-dimensional coordinate array.
  32.    ///
  33.    template<typename T, int N>
  34.    class point {
  35.    public:
  36.       point() : a() {
  37.       }
  38.  
  39.       point(std::initializer_list<T> v) {
  40.          auto it = std::copy(v.begin(), v.end(), a.begin());
  41.          std::fill(it, a.end(), 0);
  42.       }
  43.  
  44.       point(const T *v) {
  45.          std::copy(v, v + N, a.begin());
  46.       }
  47.  
  48.       T &operator[](int i) {
  49.          return a[i];
  50.       }
  51.  
  52.       const T &operator[](int i) const {
  53.          return a[i];
  54.       }
  55.  
  56.       point operator+(const point &p) const {
  57.          point q;
  58.          std::transform(a.begin(), a.end(), p.a.begin(),
  59.                         q.a.begin(), std::plus<T>());
  60.          return q;
  61.       }
  62.  
  63.       T operator()(const point &p) const {
  64.          return std::inner_product(p.a.begin(), p.a.end(), a.begin(), 0);
  65.       }
  66.  
  67.    protected:
  68.       std::array<T, N> a;
  69.    };
  70. }
  71.  
  72. #endif
  73.