chrono::ChCubicSpline Class Reference

## Description

Implementation of 1-D piece-wise cubic spline curves.

#include <ChCubicSpline.h>

## Public Types

enum  BCType { DEFAULT_BC, FIRST_BC, SECOND_BC }

## Public Member Functions

ChCubicSpline (const std::vector< double > &t, const std::vector< double > &y)
Construct a cubic spline y = y(t). More...

void SetLeftBC (BCType type, double val)
Set the boundary condition at the left endpoint. More...

void SetRightBC (BCType type, double val)
Set the boundary condition at the right endpoint. More...

void Evaluate (double t, double &y, double &yp, double &ypp)
Evaluate the cubic spline at the specified value t.

## ◆ BCType

Enumerator
DEFAULT_BC

quadratic function over corresponding interval (first/last)

FIRST_BC

imposed first derivative at corresponding endpoint (left/right)

SECOND_BC

imposed second derivative at corresponding endpoint (left/right)

## ◆ ChCubicSpline()

 chrono::ChCubicSpline::ChCubicSpline ( const std::vector< double > & t, const std::vector< double > & y )

Construct a cubic spline y = y(t).

It is assumed that the t values are sorted in ascending order.

## ◆ SetLeftBC()

 void chrono::ChCubicSpline::SetLeftBC ( BCType type, double val )

Set the boundary condition at the left endpoint.

The specified value is ignored if type = DEFAULT_BC.

## ◆ SetRightBC()

 void chrono::ChCubicSpline::SetRightBC ( BCType type, double val )

Set the boundary condition at the right endpoint.

The specified value is ignored if type = DEFAULT_BC.

The documentation for this class was generated from the following files:
• /builds/uwsbel/chrono/src/chrono/core/ChCubicSpline.h
• /builds/uwsbel/chrono/src/chrono/core/ChCubicSpline.cpp