NonPhysiologicalContractionModel.cpp

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*/
 
 
#include "NonPhysiologicalContractionModel.hpp"
#include <math.h>
 
#include <iostream>
 
NonPhysiologicalContractionModel::NonPhysiologicalContractionModel(unsigned option)
    : AbstractAlgebraicContractionModel()
{
    assert(option>=1);
    assert(option<=3);
 
    mOption = option;
    mStretch = 1.0;
}
 
 
void NonPhysiologicalContractionModel::SetInputParameters(ContractionModelInputParameters& rInputParameters)
{
}
 
void NonPhysiologicalContractionModel::SetStretchAndStretchRate(double stretch, double stretchRate)
{
    mStretch = stretch;
}
 
double NonPhysiologicalContractionModel::GetActiveTension()
{
    if (mOption==1)
    {
        // If solving mechanics problem, results using implicit and explicit solvers are identical, as they should be
        return fabs(sin(mTime));
    }
    else if (mOption==2)
    {
        // small error between implicit and explicit at lowest dt
        // next dt, small difference between explicit at lowest dt, mostly due to first timestep
        // largest dt (1ms) completely wrong after first timestep => solution translated across
        return fabs(5*mStretch*sin(mTime));
    }
    else
    {
        // same conclusions as for above
        return fabs(5*exp(1-mStretch)*sin(mTime));
    }
}