Пример #1
0
// virtual
bool CModelParameter::refreshFromModel(const bool & modifyExistence)
{
    bool success = true;

    if (modifyExistence)
    {
        if (mCompareResult == CModelParameter::Obsolete)
        {
            delete this;

            return true;
        }

        if (mCompareResult == CModelParameter::Missing)
        {
            mCompareResult = CModelParameter::Identical;
        }

        if (mType != ReactionParameter &&
                mpObject != NULL)
        {
            mSimulationType = static_cast< CModelEntity * >(mpObject)->getStatus();
        }
    }

    if (mpObject != NULL)
    {
        switch (mType)
        {
        case Model:
        {
            CModel * pModel = static_cast< CModel * >(mpObject);

            if (!pModel->isAutonomous())
            {
                mValue = pModel->getInitialValue();
            }
            else
            {
                mValue = 0.0;
            }
        }
        break;

        case Compartment:
        case Species:
        case ModelValue:
        {
            CModelEntity * pEntity = static_cast< CModelEntity * >(mpObject);

            mValue = pEntity->getInitialValue();
        }
        break;

        case ReactionParameter:
        {
            CCopasiParameter * pParameter = static_cast< CCopasiParameter * >(mpObject);
            mValue = * pParameter->getValue().pDOUBLE;

            // We need to update the mapping
            // Check whether this refers to a global quantity.
            const CReaction * pReaction = static_cast< CModelParameterReactionParameter * >(this)->getReaction();

            if (pReaction != NULL)
            {
                if (pReaction->isLocalParameter(getName()))
                {
                    mSimulationType = CModelEntity::FIXED;
                    static_cast< CModelParameterReactionParameter * >(this)->setGlobalQuantityCN("");
                }
                else
                {
                    mSimulationType = CModelEntity::ASSIGNMENT;
                    const std::vector<std::string> ModelValue = pReaction->getParameterMapping(getName());

                    assert(ModelValue.size() == 1);

                    CModelValue * pModelValue = static_cast< CModelValue * >(CCopasiRootContainer::getKeyFactory()->get(ModelValue[0]));
                    static_cast< CModelParameterReactionParameter * >(this)->setGlobalQuantityCN(pModelValue->getInitialValueReference()->getCN());
                }
            }

            CCopasiObjectName GlobalQuantityCN = static_cast< CModelParameterReactionParameter * >(this)->getGlobalQuantityCN();

            if (GlobalQuantityCN != "")
            {
                CModelParameter * pGlobalQuantity = getSet()->getModelParameter(GlobalQuantityCN);

                if (pGlobalQuantity != NULL)
                {
                    mValue = pGlobalQuantity->getValue(ParticleNumbers);
                }
            }
        }
        break;

        default:
            success = false;
            break;
        }
    }

    return success;
}
Пример #2
0
int main()
{
  // initialize the backend library
  // since we are not interested in the arguments
  // that are passed to main, we pass 0 and NULL to
  // init
  CCopasiRootContainer::init(0, NULL);
  assert(CCopasiRootContainer::getRoot() != NULL);
  // create a new datamodel
  CCopasiDataModel* pDataModel = CCopasiRootContainer::addDatamodel();
  assert(CCopasiRootContainer::getDatamodelList()->size() == 1);
  // get the model from the datamodel
  CModel* pModel = pDataModel->getModel();
  assert(pModel != NULL);
  // set the units for the model
  // we want seconds as the time unit
  // microliter as the volume units
  // and nanomole as the substance units
  pModel->setTimeUnit(CModel::s);
  pModel->setVolumeUnit(CModel::microl);
  pModel->setQuantityUnit(CModel::nMol);

  // we have to keep a set of all the initial values that are changed during
  // the model building process
  // They are needed after the model has been built to make sure all initial
  // values are set to the correct initial value
  std::set<const CCopasiObject*> changedObjects;

  // create a compartment with the name cell and an initial volume of 5.0
  // microliter
  CCompartment* pCompartment = pModel->createCompartment("cell", 5.0);
  const CCopasiObject* pObject = pCompartment->getValueReference();
  assert(pObject != NULL);
  changedObjects.insert(pObject);
  assert(pCompartment != NULL);
  assert(pModel->getCompartments().size() == 1);
  // create a new metabolite with the name S and an inital
  // concentration of 10 nanomol
  // the metabolite belongs to the compartment we created and is is to be
  // fixed
  CMetab* pS = pModel->createMetabolite("S", pCompartment->getObjectName(), 10.0, CMetab::FIXED);
  pObject = pS->getInitialConcentrationReference();
  assert(pObject != NULL);
  changedObjects.insert(pObject);
  assert(pCompartment != NULL);
  assert(pS != NULL);
  assert(pModel->getMetabolites().size() == 1);
  // create a second metabolite called P with an initial
  // concentration of 0. This metabolite is to be changed by reactions
  CMetab* pP = pModel->createMetabolite("P", pCompartment->getObjectName(), 0.0, CMetab::REACTIONS);
  assert(pP != NULL);
  pObject = pP->getInitialConcentrationReference();
  assert(pObject != NULL);
  changedObjects.insert(pObject);
  assert(pModel->getMetabolites().size() == 2);
  // now we create a reaction
  CReaction* pReaction = pModel->createReaction("reaction");
  assert(pReaction != NULL);
  assert(pModel->getReactions().size() == 1);
  // reaction converts S to P
  // we can set these on the chemical equation of the reaction
  CChemEq* pChemEq = &pReaction->getChemEq();
  // S is a substrate with stoichiometry 1
  pChemEq->addMetabolite(pS->getKey(), 1.0, CChemEq::SUBSTRATE);
  // P is a product with stoichiometry 1
  pChemEq->addMetabolite(pP->getKey(), 1.0, CChemEq::PRODUCT);
  assert(pChemEq->getSubstrates().size() == 1);
  assert(pChemEq->getProducts().size() == 1);
  // this reaction is to be irreversible
  pReaction->setReversible(false);
  assert(pReaction->isReversible() == false);

  CModelValue* pMV = pModel->createModelValue("K", 42.0);
  // set the status to FIXED
  pMV->setStatus(CModelValue::FIXED);
  assert(pMV != NULL);
  pObject = pMV->getInitialValueReference();
  assert(pObject != NULL);
  changedObjects.insert(pObject);
  assert(pModel->getModelValues().size() == 1);

  // now we ned to set a kinetic law on the reaction
  // for this we create a user defined function
  CFunctionDB* pFunDB = CCopasiRootContainer::getFunctionList();
  assert(pFunDB != NULL);

  CKinFunction* pFunction = new CKinFunction("My Rate Law");

  pFunDB->add(pFunction, true);
  CFunction* pRateLaw = dynamic_cast<CFunction*>(pFunDB->findFunction("My Rate Law"));

  assert(pRateLaw != NULL);

  // now we create the formula for the function and set it on the function
  std::string formula = "(1-0.4/(EXPONENTIALE^(temp-37)))*0.00001448471257*1.4^(temp-37)*substrate";

  bool result = pFunction->setInfix(formula);
  assert(result == true);
  // make the function irreversible
  pFunction->setReversible(TriFalse);
  // the formula string should have been parsed now
  // and COPASI should have determined that the formula string contained 2 parameters (temp and substrate)
  CFunctionParameters& variables = pFunction->getVariables();
  // per default the usage of those parameters will be set to VARIABLE
  size_t index = pFunction->getVariableIndex("temp");
  assert(index != C_INVALID_INDEX);
  CFunctionParameter* pParam = variables[index];
  assert(pParam->getUsage() == CFunctionParameter::VARIABLE);
  // This is correct for temp, but substrate should get the usage SUBSTRATE in order
  // for us to use the function with the reaction created above
  // So we need to set the usage for "substrate" manually
  index = pFunction->getVariableIndex("substrate");
  assert(index != C_INVALID_INDEX);
  pParam = variables[index];
  pParam->setUsage(CFunctionParameter::SUBSTRATE);

  // set the rate law for the reaction
  pReaction->setFunction(pFunction);
  assert(pReaction->getFunction() != NULL);

  // COPASI also needs to know what object it has to assocuiate with the individual function parameters
  // In our case we need to tell COPASI that substrate is to be replaced by the substrate of the reaction
  // and temp is to be replaced by the global parameter K
  pReaction->setParameterMapping("substrate", pS->getKey());
  pReaction->setParameterMapping("temp", pMV->getKey());

  // finally compile the model
  // compile needs to be done before updating all initial values for
  // the model with the refresh sequence
  pModel->compileIfNecessary(NULL);

  // now that we are done building the model, we have to make sure all
  // initial values are updated according to their dependencies
  std::vector<Refresh*> refreshes = pModel->buildInitialRefreshSequence(changedObjects);
  std::vector<Refresh*>::iterator it2 = refreshes.begin(), endit2 = refreshes.end();

  while (it2 != endit2)
    {
      // call each refresh
      (**it2)();
      ++it2;
    }

  // save the model to a COPASI file
  // we save to a file named example1.cps, we don't want a progress report
  // and we want to overwrite any existing file with the same name
  // Default tasks are automatically generated and will always appear in cps
  // file unless they are explicitley deleted before saving.
  pDataModel->saveModel("example7.cps", NULL, true);

  // export the model to an SBML file
  // we save to a file named example1.xml, we want to overwrite any
  // existing file with the same name and we want SBML L2V3
  pDataModel->exportSBML("example7.xml", true, 2, 3);

  // destroy the root container once we are done
  CCopasiRootContainer::destroy();
}