[2733] | 1 | // |
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| 2 | // C++ Implementation: Interpolator1D |
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| 3 | // |
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| 4 | // Description: |
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| 5 | // |
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| 6 | // |
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| 7 | // Author: Takeshi Nakazato <takeshi.nakazato@nao.ac.jp>, (C) 2012 |
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| 8 | // |
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| 9 | // Copyright: See COPYING file that comes with this distribution |
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| 10 | // |
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| 11 | // |
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| 12 | #include <assert.h> |
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| 13 | |
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| 14 | #include <casa/Arrays/Vector.h> |
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| 15 | #include <casa/Exceptions/Error.h> |
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| 16 | |
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| 17 | #include "Interpolator1D.h" |
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| 18 | #include "Locator.h" |
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| 19 | #include "BisectionLocator.h" |
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| 20 | #include "HuntLocator.h" |
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| 21 | |
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| 22 | using namespace casa; |
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| 23 | |
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| 24 | namespace asap { |
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| 25 | |
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| 26 | template <class T, class U> Interpolator1D<T, U>::Interpolator1D() |
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| 27 | : order_(1), |
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| 28 | n_(0), |
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| 29 | x_(0), |
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| 30 | y_(0), |
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| 31 | locator_(0) |
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| 32 | { |
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| 33 | } |
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| 34 | |
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| 35 | template <class T, class U> Interpolator1D<T, U>::~Interpolator1D() |
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| 36 | { |
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| 37 | if (locator_) |
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| 38 | delete locator_; |
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| 39 | } |
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| 40 | |
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| 41 | template <class T, class U> |
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| 42 | void Interpolator1D<T, U>::setData(T *x, U *y, unsigned int n) |
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| 43 | { |
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| 44 | x_ = x; |
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| 45 | y_ = y; |
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| 46 | n_ = n; |
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| 47 | createLocator(); |
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| 48 | locator_->set(x, n); |
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| 49 | } |
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| 50 | |
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| 51 | template <class T, class U> |
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| 52 | void Interpolator1D<T, U>::setX(T *x, unsigned int n) |
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| 53 | { |
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| 54 | assert(n_ == 0 || n_ == n); |
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| 55 | x_ = x; |
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| 56 | n_ = n; |
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| 57 | createLocator(); |
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| 58 | locator_->set(x, n); |
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| 59 | } |
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| 60 | |
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| 61 | template <class T, class U> |
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| 62 | void Interpolator1D<T, U>::setY(U *y, unsigned int n) |
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| 63 | { |
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| 64 | assert(n_ == 0 || n_ == n); |
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| 65 | y_ = y; |
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| 66 | n_ = n; |
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| 67 | } |
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| 68 | |
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| 69 | template <class T, class U> void Interpolator1D<T, U>::reset() |
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| 70 | { |
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| 71 | n_ = 0; |
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| 72 | x_ = 0; |
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| 73 | y_ = 0; |
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| 74 | if (locator_) { |
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| 75 | delete locator_; |
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| 76 | locator_ = 0; |
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| 77 | } |
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| 78 | } |
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| 79 | |
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| 80 | template <class T, class U> bool Interpolator1D<T, U>::isready() |
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| 81 | { |
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| 82 | return (n_ > 0 && x_ != 0 && y_ != 0); |
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| 83 | } |
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| 84 | |
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| 85 | template <class T, class U> unsigned int Interpolator1D<T, U>::locate(T x) |
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| 86 | { |
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| 87 | return locator_->locate(x); |
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| 88 | } |
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| 89 | |
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| 90 | template <class T, class U> void Interpolator1D<T, U>::createLocator() |
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| 91 | { |
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| 92 | if (!locator_) { |
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| 93 | if (n_ > 1000) |
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| 94 | locator_ = new HuntLocator<T>(); |
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| 95 | else |
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| 96 | locator_ = new BisectionLocator<T>(); |
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| 97 | } |
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| 98 | } |
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| 99 | |
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| 100 | } |
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