UnidimensionalInterpolation.h

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//     ____   ______ __
//    / __ \ / ____// /
//   / /_/ // /    / /
//  / ____// /___ / /___   PixInsight Class Library
// /_/     \____//_____/   PCL 2.6.5
// ----------------------------------------------------------------------------
// pcl/UnidimensionalInterpolation.h - Released 2024-01-13T15:47:58Z
// ----------------------------------------------------------------------------
// This file is part of the PixInsight Class Library (PCL).
// PCL is a multiplatform C++ framework for development of PixInsight modules.
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// ----------------------------------------------------------------------------
 
#ifndef __PCL_UnidimensionalInterpolation_h
#define __PCL_UnidimensionalInterpolation_h
 
 
#include <pcl/Defs.h>
#include <pcl/Diagnostics.h>
 
#include <pcl/Vector.h>
 
namespace pcl
{
 
// ----------------------------------------------------------------------------
 
template <typename T>
class PCL_CLASS UnidimensionalInterpolation
{
public:
 
   using vector_type = GenericVector<T>;
 
   UnidimensionalInterpolation() = default;
 
   UnidimensionalInterpolation( const UnidimensionalInterpolation& ) = default;
 
   virtual ~UnidimensionalInterpolation()
   {
      Clear();
   }
 
   virtual void Initialize( const vector_type& x, const vector_type& y )
   {
      if ( !y || x && x.Length() < y.Length() )
         throw Error( "Invalid vector length in UnidimensionalInterpolation::Initialize()" );
      m_x = x;
      m_y = y;
   }
 
   void Initialize( const T* x, const T* y, int n )
   {
      Initialize( vector_type( x, n ), vector_type( y, n ) );
   }
 
   virtual double operator()( double x ) const = 0;
 
   virtual void Clear()
   {
      m_x.Clear();
      m_y.Clear();
   }
 
   virtual bool IsValid() const
   {
      return m_y;
   }
 
   const vector_type& X() const
   {
      return m_x;
   }
 
   const vector_type& Y() const
   {
      return m_y;
   }
 
   bool UsingImplicitX() const
   {
      return !m_x && m_y;
   }
 
   int Length() const
   {
      return m_y.Length();
   }
 
protected:
 
   vector_type m_x;  // x-vector (empty if implicit grid x-values)
   vector_type m_y;  // y-vector
};
 
// ----------------------------------------------------------------------------
 
} // pcl
 
#endif  // __PCL_UnidimensionalInterpolation_h
 
// ----------------------------------------------------------------------------
// EOF pcl/UnidimensionalInterpolation.h - Released 2024-01-13T15:47:58Z