[2727] | 1 | // |
---|
| 2 | // C++ Interface: BufferedLinearInterpolator1D |
---|
| 3 | // |
---|
| 4 | // Description: |
---|
| 5 | // |
---|
| 6 | // |
---|
| 7 | // Author: Takeshi Nakazato <takeshi.nakazato@nao.ac.jp>, (C) 2012 |
---|
| 8 | // |
---|
| 9 | // Copyright: See COPYING file that comes with this distribution |
---|
| 10 | // |
---|
| 11 | // |
---|
| 12 | #ifndef ASAP_BUFFERED_LINEAR_INTERPOLATOR_1D_H |
---|
| 13 | #define ASAP_BUFFERED_LINEAR_INTERPOLATOR_1D_H |
---|
| 14 | |
---|
| 15 | #include "Interpolator1D.h" |
---|
| 16 | |
---|
| 17 | namespace asap { |
---|
| 18 | |
---|
| 19 | /** |
---|
[2730] | 20 | * Linear interpolation with some buffers for acceleration. |
---|
[2727] | 21 | * @author TakeshiNakazato |
---|
| 22 | */ |
---|
[2733] | 23 | template <class T, class U> |
---|
| 24 | class BufferedLinearInterpolator1D : public Interpolator1D<T, U> { |
---|
[2727] | 25 | public: |
---|
[2730] | 26 | // Default constructor. |
---|
[2727] | 27 | BufferedLinearInterpolator1D(); |
---|
| 28 | |
---|
[2730] | 29 | // Destructor. |
---|
[2727] | 30 | virtual ~BufferedLinearInterpolator1D(); |
---|
| 31 | |
---|
[2730] | 32 | // Set horizontal (x) and vertical (y) data. |
---|
| 33 | // @param[in] x pointer to horizontal data. |
---|
| 34 | // @param[in] y pointer to vertical data. |
---|
| 35 | // @param[in] n number of data. |
---|
| 36 | // @see Interpolator1D::setData() |
---|
[2733] | 37 | void setData(T *x, U *y, unsigned int n); |
---|
[2730] | 38 | |
---|
| 39 | // Set horizontal data (x). |
---|
| 40 | // @param[in] x pointer to horizontal data. |
---|
| 41 | // @param[in] n number of data. |
---|
| 42 | // @see Interpolator1D::setX() |
---|
[2733] | 43 | void setX(T *x, unsigned int n); |
---|
[2730] | 44 | |
---|
| 45 | // Perform interpolation. |
---|
| 46 | // @param[in] x horizontal location where the value is evaluated |
---|
| 47 | // by interpolation. |
---|
| 48 | // @return interpolated value at x. |
---|
| 49 | // @see Interpolator1D::interpolate() |
---|
[2733] | 50 | U interpolate(T x); |
---|
[2727] | 51 | |
---|
| 52 | private: |
---|
[2730] | 53 | // Numerical factor for linear interpolation. |
---|
[2733] | 54 | T factor_; |
---|
[2730] | 55 | |
---|
| 56 | // Previous location. |
---|
[2733] | 57 | T xold_; |
---|
[2730] | 58 | |
---|
| 59 | // Previous location as an index |
---|
[2727] | 60 | unsigned int prev_; |
---|
[2730] | 61 | |
---|
| 62 | // Boolean parameter whether buffered values are effective or not. |
---|
[2727] | 63 | bool reusable_; |
---|
| 64 | }; |
---|
| 65 | |
---|
| 66 | } |
---|
[2733] | 67 | |
---|
| 68 | #include "BufferedLinearInterpolator1D.tcc" |
---|
| 69 | |
---|
[2727] | 70 | #endif |
---|