//Created by libAntimony v2.4
model heldt_heart_2002__Environment(time_, HR, hrf)

  // Assignment Rules:
  hrf := HR / 60;

  // Variable initializations:
  time_ = ;
  HR = 70;
end

model heldt_heart_2002__LVTiming(realtime, HR, beattime, hrf)

  // Assignment Rules:
  beattime := (realtime - floor(realtime / hrf) * hrf) - PRint;

  // Variable initializations:
  realtime = ;
  HR = ;
  PRint = 0.00012;
  hrf = ;
end

model heldt_heart_2002__LVElastanceFunction(time_, hrf, E_LV)

  // Assignment Rules:
  Ts := TsK * root(1 * hrf);
  E_LV := piecewise( Edia + ((Esys - Edia) * (1 - cos((pi * time_) / Ts))) / 2 , ( geq(time_, 0)) && (time_ <= Ts ), Edia + ((Esys - Edia) * (1 + cos((2 * pi * (time_ - Ts)) / Ts))) / 2 , ( time_ < 1.5 * Ts) && (geq(time_, Ts) ), Edia );

  // Variable initializations:
  time_ = ;
  Esys = 5.6;
  Edia = 0.19;
  TsK = 0.35;
  hrf = ;
end

model heldt_heart_2002__dummy(time_)

  // Rate Rules:
  dummy' = dummy * -(3);

  // Variable initializations:
  time_ = ;
  dummy = 10;
end

model *heldt_heart_2002____main()

  // Sub-modules, and any changes to those submodules:
  Environment: heldt_heart_2002__Environment(realtime, HR, hrf);
  LVTiming: heldt_heart_2002__LVTiming(realtime, HR, time_, hrf);
  LVElastanceFunction: heldt_heart_2002__LVElastanceFunction(time_, hrf, E_LV);
  dummy: heldt_heart_2002__dummy(realtime);
end