Пример #1
0
        /// <summary>
        /// Adds a Species to COPASI
        /// </summary>
        /// <returns>COPASI Metabolite</returns>
        /// <param name="species">Species.</param>
        public CMetab AddSpecies(MoleculeSpecies species)
        {
            CCompartment compartment = this.compartment;
            int          status      = CMetab.REACTIONS;

            CMetab metab = model.createMetabolite(species.Name, compartment.getObjectName());

            metab.setStatus(status);

            copasiMetabBySpecies.Add(species, metab);

            return(metab);
        }
Пример #2
0
    static void Main(string[] args)
    {
        Debug.Assert(CCopasiRootContainer.getRoot() != null);
        // create a new datamodel
        CCopasiDataModel dataModel = CCopasiRootContainer.addDatamodel();

        Debug.Assert(CCopasiRootContainer.getDatamodelList().size() == 1);
        // the only argument to the main routine should be the name of a CPS file
        if (args.Length == 1)
        {
            string filename = args[0];
            try
            {
                // load the model without progress report
                dataModel.loadModel(filename);
            }
            catch
            {
                System.Console.Error.WriteLine("Error while loading the model from file named \"" + filename + "\".");
                System.Environment.Exit(1);
            }
            CModel model = dataModel.getModel();
            Debug.Assert(model != null);
            System.Console.WriteLine("Model statistics for model \"" + model.getObjectName() + "\".");

            // output number and names of all compartments
            uint i, iMax = (uint)model.getCompartments().size();
            System.Console.WriteLine("Number of Compartments: " + System.Convert.ToString(iMax));
            System.Console.WriteLine("Compartments: ");
            for (i = 0; i < iMax; ++i)
            {
                CCompartment compartment = model.getCompartment(i);
                Debug.Assert(compartment != null);
                System.Console.WriteLine("\t" + compartment.getObjectName());
            }

            // output number and names of all metabolites
            iMax = (uint)model.getMetabolites().size();
            System.Console.WriteLine("Number of Metabolites: " + System.Convert.ToString(iMax));
            System.Console.WriteLine("Metabolites: ");
            for (i = 0; i < iMax; ++i)
            {
                CMetab metab = model.getMetabolite(i);
                Debug.Assert(metab != null);
                System.Console.WriteLine("\t" + metab.getObjectName());
            }

            // output number and names of all reactions
            iMax = (uint)model.getReactions().size();
            System.Console.WriteLine("Number of Reactions: " + System.Convert.ToString(iMax));
            System.Console.WriteLine("Reactions: ");
            for (i = 0; i < iMax; ++i)
            {
                CReaction reaction = model.getReaction(i);
                Debug.Assert(reaction != null);
                System.Console.WriteLine("\t" + reaction.getObjectName());
            }
        }
        else
        {
            System.Console.Error.WriteLine("Usage: example2 CPSFILE");
            System.Environment.Exit(1);
        }
    }
Пример #3
0
    static void Main()
    {
        Debug.Assert(CRootContainer.getRoot() != null);
        // create a new datamodel
        CDataModel dataModel = CRootContainer.addDatamodel();

        Debug.Assert(CRootContainer.getDatamodelList().size() == 1);
        // get the model from the datamodel
        CModel model = dataModel.getModel();

        Debug.Assert(model != 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
        model.setTimeUnit(CUnit.s);
        model.setVolumeUnit(CUnit.microl);
        model.setQuantityUnit(CUnit.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
        ObjectStdVector changedObjects = new ObjectStdVector();

        // create a compartment with the name cell and an initial volume of 5.0
        // microliter
        CCompartment compartment = model.createCompartment("cell", 5.0);
        CDataObject  obj         = compartment.getInitialValueReference();

        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(compartment != null);
        Debug.Assert(model.getCompartments().size() == 1);
        // create a new metabolite with the name glucose and an inital
        // concentration of 10 nanomol
        // the metabolite belongs to the compartment we created and is is to be
        // fixed
        CMetab glucose = model.createMetabolite("glucose", compartment.getObjectName(), 10.0, CModelEntity.Status_FIXED);

        obj = glucose.getInitialValueReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(glucose != null);
        Debug.Assert(model.getMetabolites().size() == 1);
        // create a second metabolite called glucose-6-phosphate with an initial
        // concentration of 0. This metabolite is to be changed by reactions
        CMetab g6p = model.createMetabolite("glucose-6-phosphate", compartment.getObjectName(), 0.0, CModelEntity.Status_REACTIONS);

        Debug.Assert(g6p != null);
        obj = g6p.getInitialValueReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(model.getMetabolites().size() == 2);
        // another metabolite for ATP, also fixed
        CMetab atp = model.createMetabolite("ATP", compartment.getObjectName(), 10.0, CModelEntity.Status_FIXED);

        Debug.Assert(atp != null);
        obj = atp.getInitialValueReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(model.getMetabolites().size() == 3);
        // and one for ADP
        CMetab adp = model.createMetabolite("ADP", compartment.getObjectName(), 0.0, CModelEntity.Status_REACTIONS);

        Debug.Assert(adp != null);
        obj = adp.getInitialValueReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(model.getMetabolites().size() == 4);
        // now we create a reaction
        CReaction reaction = model.createReaction("hexokinase");

        Debug.Assert(reaction != null);
        Debug.Assert(model.getReactions().size() == 1);
        // hexokinase converts glucose and ATP to glucose-6-phosphate and ADP
        // we can set these on the chemical equation of the reaction
        CChemEq chemEq = reaction.getChemEq();

        // glucose is a substrate with stoichiometry 1
        chemEq.addMetabolite(glucose.getKey(), 1.0, CChemEq.SUBSTRATE);
        // ATP is a substrate with stoichiometry 1
        chemEq.addMetabolite(atp.getKey(), 1.0, CChemEq.SUBSTRATE);
        // glucose-6-phosphate is a product with stoichiometry 1
        chemEq.addMetabolite(g6p.getKey(), 1.0, CChemEq.PRODUCT);
        // ADP is a product with stoichiometry 1
        chemEq.addMetabolite(adp.getKey(), 1.0, CChemEq.PRODUCT);
        Debug.Assert(chemEq.getSubstrates().size() == 2);
        Debug.Assert(chemEq.getProducts().size() == 2);
        // this reaction is to be irreversible
        reaction.setReversible(false);
        Debug.Assert(reaction.isReversible() == false);
        // now we ned to set a kinetic law on the reaction
        // maybe constant flux would be OK
        // we need to get the function from the function database
        CFunctionDB funDB = CRootContainer.getFunctionList();

        Debug.Assert(funDB != null);
        // it should be in the list of suitable functions
        // lets get all suitable functions for an irreversible reaction with  2 substrates
        // and 2 products
        CFunctionStdVector suitableFunctions = funDB.suitableFunctions(2, 2, COPASI.TriFalse);

        Debug.Assert((suitableFunctions.Count > 0));
        int i, iMax = (int)suitableFunctions.Count;

        for (i = 0; i < iMax; ++i)
        {
            // we just assume that the only suitable function with Constant in
            // it's name is the one we want
            if (suitableFunctions[i].getObjectName().IndexOf("Constant") != -1)
            {
                break;
            }
        }
        if (i != iMax)
        {
            // we set the function
            // the method should be smart enough to associate the reaction entities
            // with the correct function parameters
            reaction.setFunction(suitableFunctions[i]);
            Debug.Assert(reaction.getFunction() != null);
            // constant flux has only one function parameter
            Debug.Assert(reaction.getFunctionParameters().size() == 1);
            // so there should be only one entry in the parameter mapping as well
            Debug.Assert(reaction.getParameterCNs().Count == 1);
            CCopasiParameterGroup parameterGroup = reaction.getParameters();
            Debug.Assert(parameterGroup.size() == 1);
            CCopasiParameter parameter = parameterGroup.getParameter(0);
            // make sure the parameter is a local parameter
            Debug.Assert(reaction.isLocalParameter(parameter.getObjectName()));
            // now we set the value of the parameter to 0.5
            Debug.Assert(parameter.getType() == CCopasiParameter.Type_DOUBLE);
            parameter.setDblValue(0.5);
            obj = parameter.getValueReference();
            Debug.Assert(obj != null);
            changedObjects.Add(obj);
        }
        else
        {
            System.Console.Error.WriteLine("Error. Could not find a kinetic law that conatins the term \"Constant\".");
            System.Environment.Exit(1);
        }
        // now we also create a separate reaction for the backwards reaction and
        // set the kinetic law to irreversible mass action
        // now we create a reaction
        reaction = model.createReaction("hexokinase-backwards");
        Debug.Assert(reaction != null);
        Debug.Assert(model.getReactions().size() == 2);
        chemEq = reaction.getChemEq();
        // glucose is a product with stoichiometry 1
        chemEq.addMetabolite(glucose.getKey(), 1.0, CChemEq.PRODUCT);
        // ATP is a product with stoichiometry 1
        chemEq.addMetabolite(atp.getKey(), 1.0, CChemEq.PRODUCT);
        // glucose-6-phosphate is a substrate with stoichiometry 1
        chemEq.addMetabolite(g6p.getKey(), 1.0, CChemEq.SUBSTRATE);
        // ADP is a substrate with stoichiometry 1
        chemEq.addMetabolite(adp.getKey(), 1.0, CChemEq.SUBSTRATE);
        Debug.Assert(chemEq.getSubstrates().size() == 2);
        Debug.Assert(chemEq.getProducts().size() == 2);
        // this reaction is to be irreversible
        reaction.setReversible(false);
        Debug.Assert(reaction.isReversible() == false);
        // now we ned to set a kinetic law on the reaction
        CFunction massAction = (CFunction)funDB.findFunction("Mass action (irreversible)");

        Debug.Assert(massAction != null);
        // we set the function
        // the method should be smart enough to associate the reaction entities
        // with the correct function parameters
        reaction.setFunction(massAction);
        Debug.Assert(reaction.getFunction() != null);

        Debug.Assert(reaction.getFunctionParameters().size() == 2);
        // so there should be two entries in the parameter mapping as well
        Debug.Assert(reaction.getParameterCNs().Count == 2);
        // mass action is a special case since the parameter mappings for the
        // substrates (and products) are in a vector

        // Let us create a global parameter that is determined by an assignment
        // and that is used as the rate constant of the mass action kinetics
        // it gets the name rateConstant and an initial value of 1.56
        CModelValue modelValue = model.createModelValue("rateConstant", 1.56);

        Debug.Assert(modelValue != null);
        obj = modelValue.getInitialValueReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(model.getModelValues().size() == 1);
        // set the status to assignment
        modelValue.setStatus(CModelEntity.Status_ASSIGNMENT);
        // the assignment does not have to make sense
        modelValue.setExpression("1.0 / 4.0 + 2.0");

        // now we have to adjust the parameter mapping in the reaction so
        // that the kinetic law uses the global parameter we just created instead
        // of the local one that is created by default
        // The first parameter is the one for the rate constant, so we point it to
        // the key of out model value
        reaction.setParameterObject(0, modelValue);
        // now we have to set the parameter mapping for the substrates
        reaction.addParameterObject("substrate", g6p);
        reaction.addParameterObject("substrate", adp);

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

        // now that we are done building the model, we have to make sure all
        // initial values are updated according to their dependencies
        model.updateInitialValues(changedObjects);

        // save the model to a COPASI file
        // we save to a file named example1.cps
        // 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.
        dataModel.saveModel("example1.cps", 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
        try
        {
            dataModel.exportSBML("example1.xml", true, 2, 3);
        }
        catch
        {
            System.Console.Error.WriteLine("Error. Exporting the model to SBML failed.");
        }
    }
Пример #4
0
    static void Main()
    {
        Debug.Assert(CRootContainer.getRoot() != null);
        // create a new datamodel
        CDataModel dataModel = CRootContainer.addDatamodel();

        Debug.Assert(CRootContainer.getDatamodelList().size() == 1);
        // get the model from the datamodel
        CModel model = dataModel.getModel();

        Debug.Assert(model != 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
        model.setTimeUnit(CUnit.s);
        model.setVolumeUnit(CUnit.microl);
        model.setQuantityUnit(CUnit.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
        ObjectStdVector changedObjects = new ObjectStdVector();

        // create a compartment with the name cell and an initial volume of 5.0
        // microliter
        CCompartment compartment = model.createCompartment("cell", 5.0);
        CDataObject  obj         = compartment.getValueReference();

        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(compartment != null);
        Debug.Assert(model.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 S = model.createMetabolite("S", compartment.getObjectName(), 10.0, CModelEntity.Status_FIXED);

        obj = S.getInitialConcentrationReference();
        Debug.Assert((obj != null));
        changedObjects.Add(obj);
        Debug.Assert((compartment != null));
        Debug.Assert(S != null);
        Debug.Assert(model.getMetabolites().size() == 1);
        // create a second metabolite called P with an initial
        // concentration of 0. This metabolite is to be changed by reactions
        CMetab P = model.createMetabolite("P", compartment.getObjectName(), 0.0, CModelEntity.Status_REACTIONS);

        Debug.Assert(P != null);
        obj = P.getInitialConcentrationReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(model.getMetabolites().size() == 2);

        // now we create a reaction
        CReaction reaction = model.createReaction("reaction");

        Debug.Assert(reaction != null);
        Debug.Assert(model.getReactions().size() == 1);
        // reaction converts S to P
        // we can set these on the chemical equation of the reaction
        CChemEq chemEq = reaction.getChemEq();

        // S is a substrate with stoichiometry 1
        chemEq.addMetabolite(S.getKey(), 1.0, CChemEq.SUBSTRATE);
        // P is a product with stoichiometry 1
        chemEq.addMetabolite(P.getKey(), 1.0, CChemEq.PRODUCT);
        Debug.Assert(chemEq.getSubstrates().size() == 1);
        Debug.Assert(chemEq.getProducts().size() == 1);
        // this reaction is to be irreversible
        reaction.setReversible(false);
        Debug.Assert(reaction.isReversible() == false);

        CModelValue MV = model.createModelValue("K", 42.0);

        // set the status to FIXED
        MV.setStatus(CModelEntity.Status_FIXED);
        Debug.Assert(MV != null);
        obj = MV.getInitialValueReference();
        Debug.Assert(obj != null);
        changedObjects.Add(obj);
        Debug.Assert(model.getModelValues().size() == 1);

        // now we ned to set a kinetic law on the reaction
        // for this we create a user defined function
        CFunctionDB funDB = CRootContainer.getFunctionList();

        Debug.Assert(funDB != null);

        CFunction function = (CFunction)funDB.createFunction("My Rate Law", CEvaluationTree.UserDefined);

        CFunction rateLaw = (CFunction)funDB.findFunction("My Rate Law");

        Debug.Assert(rateLaw != null);

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

        var result = function.setInfix(formula);

        Debug.Assert(result.isSuccess());
        // make the function irreversible
        function.setReversible(COPASI.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 = function.getVariables();
        // per default the usage of those parameters will be set to VARIABLE
        uint index = function.getVariableIndex("temp");
        CFunctionParameter param = variables.getParameter(index);

        Debug.Assert(param.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 = function.getVariableIndex("substrate");
        param = variables.getParameter(index);
        param.setUsage(CFunctionParameter.SUBSTRATE);

        // set the rate law for the reaction
        reaction.setFunction(function);
        Debug.Assert(reaction.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
        reaction.setParameterMapping("substrate", S.getKey());
        reaction.setParameterMapping("temp", MV.getKey());

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

        // now that we are done building the model, we have to make sure all
        // initial values are updated according to their dependencies
        model.updateInitialValues(changedObjects);

        // save the model to a COPASI file
        // we save to a file named example1.cps
        // 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.
        dataModel.saveModel("example7.cps", 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
        try
        {
            dataModel.exportSBML("example7.xml", true, 2, 3);
        }
        catch
        {
            System.Console.Error.WriteLine("Error. Exporting the model to SBML failed.");
        }
    }