QuadraticBSpline.hpp

Go to the documentation of this file.

#pragma once
 
#include <cassert>
#include <array>
#include <Eigen/Dense>
 
namespace polyfem
{
    namespace basis
    {
        class QuadraticBSpline
        {
        public:
            QuadraticBSpline() {}
            QuadraticBSpline(const std::array<double, 4> &knots)
                : knots_(knots)
            {
            }
 
            void init(const std::array<double, 4> &knots);
 
            void interpolate(const Eigen::MatrixXd &ts, Eigen::MatrixXd &result) const;
            double interpolate(const double t) const;
 
            void derivative(const Eigen::MatrixXd &ts, Eigen::MatrixXd &result) const;
            double derivative(const double t) const;
 
        private:
            std::array<double, 4> knots_;
        };
    } // namespace basis
} // namespace polyfem