Interp()

template<typename KeyT, typename ValT>

ValT Interp ( const KeyT & k, const InterpData< KeyT, ValT > * array, const int n )

inline

Definition at line 54 of file ApproximatingFunction.h.

                                                                                    {
  if (n < 1) {
    return ValT(0);
  }
 
  int low_idx = -1;
  int high_idx = -1;
 
  SelectInterpPoints<KeyT, ValT>(k, array, n, &low_idx, &high_idx);
  
  if (low_idx == high_idx) {
    return array[low_idx].val;
  }
 
  const InterpData<KeyT, ValT>* curr = &array[low_idx];
  const InterpData<KeyT, ValT>* next = &array[high_idx];
  // map(...) only works on integers. MapT<> is the same thing but it works on
  // all datatypes.
  return MapT<KeyT, ValT>(k, curr->key, next->key, curr->val, next->val);
}

References InterpData< KeyT, ValT >::key, MapT(), SelectInterpPoints(), and InterpData< KeyT, ValT >::val.

Referenced by AttackRemapFactor(), anonymous_namespace{Painter.cpp}::LuminanceDecay(), MapDecayTime(), and ToBrightness().

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