src/TypeIRML/TypeIRMLPolynomial.cpp

Go to the documentation of this file.

//  ---------------------- Doxygen info ----------------------
//  ----------------------------------------------------------
//   For a convenient reading of this file's source code,
//   please use a tab width of four characters.
//  ----------------------------------------------------------



#include <TypeIRMLPolynomial.h>
#include <TypeIRMLMath.h>


//************************************************************************************
// Constructor


TypeIRMLMath::TypeIRMLPolynomial::TypeIRMLPolynomial()
{
    a0      = 0.0;
    a1      = 0.0;
    a2      = 0.0;
    DeltaT  = 0.0;
    Degree  = 0;
}


//************************************************************************************
// Destructor

TypeIRMLMath::TypeIRMLPolynomial::~TypeIRMLPolynomial()
{}


//************************************************************************************
// SetCoefficients()
// f(x) = a_2 * (t - DeltaT)^2 + a_1 * (t - DeltaT) + a_0

void TypeIRMLMath::TypeIRMLPolynomial::SetCoefficients(     const double    &Coeff2
                                                        ,   const double    &Coeff1
                                                        ,   const double    &Coeff0
                                                        ,   const double    &Diff)
{
    a0      = Coeff0;
    a1      = Coeff1;
    a2      = Coeff2;
    DeltaT  = Diff;

    if (a2 != 0.0)
    {
        Degree = 2;
        return;
    }

    if (a1 != 0.0)
    {
        Degree = 1;
        return;
    }

    Degree = 0;
    return;
}


//*******************************************************************************************
// CalculateValue()
// calculates f(t)

double TypeIRMLMath::TypeIRMLPolynomial::CalculateValue(const double &t) const
{
    return( ((Degree == 2)?
            (a2 * (t - DeltaT) * (t - DeltaT) + a1 * (t - DeltaT) + a0):
            ((Degree == 1)?
            (a1 * (t - DeltaT) + a0):
            (a0))));
}