.. _program_listing_file_src_navtk_utils_CubicSplineModel.hpp:

Program Listing for File CubicSplineModel.hpp
=============================================

|exhale_lsh| :ref:`Return to documentation for file <file_src_navtk_utils_CubicSplineModel.hpp>` (``src/navtk/utils/CubicSplineModel.hpp``)

.. |exhale_lsh| unicode:: U+021B0 .. UPWARDS ARROW WITH TIP LEFTWARDS

.. code-block:: cpp

   #pragma once
   
   #include <memory>
   #include <typeinfo>
   
   #include <navtk/tensors.hpp>
   #include <navtk/utils/InterpolationModel.hpp>
   #include <navtk/utils/Ordered.hpp>
   
   namespace navtk {
   namespace utils {
   
   class CubicSplineModel : public InterpolationModel {
   
   public:
       CubicSplineModel(const std::vector<double> &x, const std::vector<double> &y);
   
       double y_at(double x_interp) override;
   
   private:
       /*
        * Solution of the system of equations that describes the cubic spline model; also happens to be
        * the set of first-order terms of the polynomial coefficients, size N.
        */
       Vector der;
   
       /*
        * Second order terms of the splines polynomial coefficients, size N.
        */
       Vector c;
   
       /*
        * 3rd order terms of the splines polynomial coefficients, size N.
        */
       Vector d;
   };
   
   }  // namespace utils
   }  // namespace navtk