Interpolator.h

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#pragma once
 
#include <TrajColl/Func.h>
 
namespace TrajColl
{
template<class T, class U = T>
class Interpolator
{
public:
  Interpolator(const std::map<double, T> & points = {}) : points_(points) {}
 
  Interpolator(const Interpolator & inst)
  {
    points_ = inst.points_;
  }
 
  virtual std::shared_ptr<Interpolator<T, U>> clone() const = 0;
 
  virtual void clearPoints()
  {
    points_.clear();
  }
 
  virtual void appendPoint(const std::pair<double, T> & point) = 0;
 
  virtual void calcCoeff() = 0;
 
  virtual T operator()(double t) const = 0;
 
  virtual U derivative(double t, int order = 1) const = 0;
 
  double startTime() const
  {
    return points_.begin()->first;
  }
 
  double endTime() const
  {
    return points_.rbegin()->first;
  }
 
  const std::map<double, T> & points() const
  {
    return points_;
  }
 
protected:
  std::map<double, T> points_;
};
} // namespace TrajColl