Examples with MembraneSubDomain cbit.vcell.math.MembraneSubDomain used on opensource projects

Example 21 with MembraneSubDomain

use of cbit.vcell.math.MembraneSubDomain in project vcell by virtualcell.

the class FiniteVolumeFileWriter method assignPhases.

private void assignPhases(CompartmentSubDomain[] subDomains, int startingIndex, int[] phases, int[] numAssigned) throws SolverException {
    if (phases[startingIndex] == -1) {
        return;
    }
    if (numAssigned[0] == subDomains.length) {
        return;
    }
    for (int j = subDomains.length - 1; j >= 0; j--) {
        if (startingIndex == j) {
            continue;
        }
        MembraneSubDomain mem = getSimulationTask().getSimulation().getMathDescription().getMembraneSubDomain(subDomains[startingIndex], subDomains[j]);
        if (mem != null) {
            int newPhase = phases[startingIndex] == 0 ? 1 : 0;
            if (phases[j] == -1) {
                numAssigned[0]++;
                // membrane between i and j, different phase
                phases[j] = newPhase;
                assignPhases(subDomains, j, phases, numAssigned);
            } else if (phases[j] != newPhase) {
                throw new SolverException("Geometry is invalid for " + getSimulationTask().getSimulation().getSolverTaskDescription().getSolverDescription().getDisplayLabel() + ": domains are not properly nested (membrane branching). \n\n(domain " + subDomains[j].getName() + " was assigned to phase " + phases[j] + ", is again being assigned to phase " + newPhase + ".)");
            }
        }
    }
}

Example 22 with MembraneSubDomain

use of cbit.vcell.math.MembraneSubDomain in project vcell by virtualcell.

the class FiniteVolumeFileWriter method writeModelDescription.

/**
 *# Model description: FEATURE name handle priority boundary_conditions
 *MODEL_BEGIN
 *FEATURE Nucleus 0 value value value value
 *FEATURE Cytosol 1 flux flux value value
 *FEATURE ExtraCellular 2 flux flux value value
 *MEMBRANE Nucleus_Cytosol_membrane Nucleus Cytosol value value value value
 *MEMBRANE Cytosol_ExtraCellular_membrane Cytosol ExtraCellular flux flux value value
 *MODEL_END
 * @throws MathException
 */
private void writeModelDescription() throws MathException {
    Simulation simulation = simTask.getSimulation();
    printWriter.println("# Model description: FEATURE name handle boundary_conditions");
    printWriter.println(FVInputFileKeyword.MODEL_BEGIN);
    MathDescription mathDesc = simulation.getMathDescription();
    Enumeration<SubDomain> enum1 = mathDesc.getSubDomains();
    while (enum1.hasMoreElements()) {
        SubDomain sd = enum1.nextElement();
        if (sd instanceof CompartmentSubDomain) {
            CompartmentSubDomain csd = (CompartmentSubDomain) sd;
            printWriter.print(FVInputFileKeyword.FEATURE + " " + csd.getName() + " " + mathDesc.getHandle(csd) + " ");
            writeFeature_boundaryConditions(csd);
        } else if (sd instanceof MembraneSubDomain) {
            MembraneSubDomain msd = (MembraneSubDomain) sd;
            printWriter.print(FVInputFileKeyword.MEMBRANE + " " + msd.getName() + " " + msd.getInsideCompartment().getName() + " " + msd.getOutsideCompartment().getName() + " ");
            writeMembrane_boundaryConditions(msd);
        }
    }
    printWriter.println(FVInputFileKeyword.MODEL_END);
    printWriter.println();
}

Example 23 with MembraneSubDomain

use of cbit.vcell.math.MembraneSubDomain in project vcell by virtualcell.

the class MathTestingUtilities method comparePDEResults.

/**
 * Insert the method's description here.
 * Creation date: (8/20/2003 12:58:10 PM)
 */
public static SimulationComparisonSummary comparePDEResults(SimulationSymbolTable testSimSymbolTable, PDEDataManager testDataManager, SimulationSymbolTable refSimSymbolTable, PDEDataManager refDataManager, String[] varsToCompare, double absErrorThreshold, double relErrorThreshold, VCDocument refDocument, DataInfoProvider refDataInfoProvider, VCDocument testDocument, DataInfoProvider testDataInfoProvider) throws DataAccessException, ExpressionException {
    java.util.Hashtable<String, DataErrorSummary> tempVarHash = new java.util.Hashtable<String, DataErrorSummary>();
    boolean bTimesEqual = true;
    double[] testTimeArray = testDataManager.getDataSetTimes();
    double[] refTimeArray = refDataManager.getDataSetTimes();
    if (testTimeArray.length != refTimeArray.length) {
        bTimesEqual = false;
    // throw new RuntimeException("Data times for reference and test simulations don't match, cannot compare the two simulations!");
    } else {
        for (int i = 0; i < testTimeArray.length; i++) {
            if (testTimeArray[i] != refTimeArray[i]) {
                bTimesEqual = false;
            }
        }
    }
    // if (!checkSimVars(testSim, refSim)) {
    // //String errorS = "TestVars - ";
    // Variable[] testVars = testSim.getVariables();
    // //for(int i =0;i<vars.length;i+= 1){
    // //errorS+= vars[i].getName()+" ";
    // //}
    // //errorS+=" <<>> RefVars - ";
    // Variable[] refVars = refSim.getVariables();
    // //for(int i =0;i<vars.length;i+= 1){
    // //errorS+= vars[i].getName()+" ";
    // //}
    // throw new RuntimeException(
    // "VarNotMatch testLength="+(testVars != null?testVars.length+"":"null")+" refLength="+(refVars != null?refVars.length+"":"null"));
    // }
    CartesianMesh testMesh = testDataManager.getMesh();
    MathDescription testMathDesc = testSimSymbolTable.getSimulation().getMathDescription();
    // Variable[] refVars = refSim.getVariables();
    MathDescription refMathDesc = refSimSymbolTable.getSimulation().getMathDescription();
    CartesianMesh refMesh = refDataManager.getMesh();
    int[] membraneIndexMapping = null;
    // Get volumeSubdomains from mathDesc/mesh and store in lookupTable for testSimulation
    int testNumVol = testMesh.getSizeX() * testMesh.getSizeY() * testMesh.getSizeZ();
    CompartmentSubDomain[] testVolSubDomainLookup = new CompartmentSubDomain[testNumVol];
    for (int i = 0; i < testNumVol; i++) {
        int subVolumeIndex = testMesh.getSubVolumeFromVolumeIndex(i);
        SubVolume subVolume = testMathDesc.getGeometry().getGeometrySpec().getSubVolume(subVolumeIndex);
        CompartmentSubDomain compSubDomain = testMathDesc.getCompartmentSubDomain(subVolume.getName());
        testVolSubDomainLookup[i] = compSubDomain;
    }
    // Get membraneSubdomains from mathDesc/mesh and store in lookupTable for testSimulation
    int testNumMem = testMesh.getMembraneElements().length;
    MembraneSubDomain[] testMemSubDomainLookup = new MembraneSubDomain[testNumMem];
    for (int i = 0; i < testNumMem; i++) {
        int insideVolIndex = testMesh.getMembraneElements()[i].getInsideVolumeIndex();
        int outsideVolIndex = testMesh.getMembraneElements()[i].getOutsideVolumeIndex();
        MembraneSubDomain memSubDomain = testMathDesc.getMembraneSubDomain(testVolSubDomainLookup[insideVolIndex], testVolSubDomainLookup[outsideVolIndex]);
        testMemSubDomainLookup[i] = memSubDomain;
    }
    // Get volumeSubdomains from mathDesc/mesh and store in lookupTable for refSimulation
    int refNumVol = refMesh.getSizeX() * refMesh.getSizeY() * refMesh.getSizeZ();
    CompartmentSubDomain[] refVolSubDomainLookup = new CompartmentSubDomain[refNumVol];
    for (int i = 0; i < refNumVol; i++) {
        int subVolumeIndex = refMesh.getSubVolumeFromVolumeIndex(i);
        SubVolume subVolume = refMathDesc.getGeometry().getGeometrySpec().getSubVolume(subVolumeIndex);
        CompartmentSubDomain compSubDomain = refMathDesc.getCompartmentSubDomain(subVolume.getName());
        refVolSubDomainLookup[i] = compSubDomain;
    }
    // Get membraneSubdomains from mathDesc/mesh and store in lookupTable for refSimulation
    int refNumMem = refMesh.getMembraneElements().length;
    MembraneSubDomain[] refMemSubDomainLookup = new MembraneSubDomain[refNumMem];
    for (int i = 0; i < refNumMem; i++) {
        int insideVolIndex = refMesh.getMembraneElements()[i].getInsideVolumeIndex();
        int outsideVolIndex = refMesh.getMembraneElements()[i].getOutsideVolumeIndex();
        MembraneSubDomain memSubDomain = refMathDesc.getMembraneSubDomain(refVolSubDomainLookup[insideVolIndex], refVolSubDomainLookup[outsideVolIndex]);
        refMemSubDomainLookup[i] = memSubDomain;
    }
    SimulationComparisonSummary simComparisonSummary = new SimulationComparisonSummary();
    String hashKey = new String("");
    DataErrorSummary tempVar = null;
    DataIdentifier[] refDataIDs = refDataManager.getDataIdentifiers();
    // for each var, do the following :
    for (int i = 0; i < varsToCompare.length; i++) {
        DataIdentifier refDataID = null;
        for (int j = 0; j < refDataIDs.length; j++) {
            if (refDataIDs[j].getName().equals(varsToCompare[i])) {
                refDataID = refDataIDs[j];
                break;
            }
        }
        // 
        // Find REFERENCE variable
        // 
        Variable refVar = getSimVar(refSimSymbolTable, varsToCompare[i]);
        if (refVar == null) {
            // Should only happen if TEST sims were generated 'post-domains' and REFERENCE sims were generated 'pre-domains'
            if (refDataID != null) {
                throw new RuntimeException("Unexpected reference condition: '" + varsToCompare[i] + "' not found in symboltable but was found in dataidentifiers");
            }
            if (testDocument instanceof BioModel) {
                // Only BioModels need to be checked
                // Look in TEST for a speciescontext with matching species name
                System.out.println("ReferenceVariable: using alternate method to find '" + varsToCompare[i] + "'");
                BioModel refBioModel = (BioModel) refDocument;
                BioModel testBioModel = (BioModel) testDocument;
                SpeciesContext testSpeciesContext = testBioModel.getModel().getSpeciesContext(varsToCompare[i]);
                if (testSpeciesContext != null) {
                    refVar = refSimSymbolTable.getVariable(testSpeciesContext.getSpecies().getCommonName());
                    for (int j = 0; j < refDataIDs.length; j++) {
                        if (refDataIDs[j].getName().equals(testSpeciesContext.getSpecies().getCommonName())) {
                            refDataID = refDataIDs[j];
                            break;
                        }
                    }
                }
            }
            if (refVar == null || refDataID == null) {
                Simulation refSim = refSimSymbolTable.getSimulation();
                throw new RuntimeException("The variable " + varsToCompare[i] + " was not found in Simulation (" + refSim.getName() + " " + refSim.getVersion().getDate() + ")\n");
            }
        }
        // 
        // Find TEST variable (assumed to have sims generated with a software version later than REFERENCE)
        // 
        Variable testVar = getSimVar(testSimSymbolTable, varsToCompare[i]);
        if (testVar == null) {
            // Should only happen if TEST sims were generated 'post-domains' and REFERENCE sims were generated 'pre-domains'
            System.out.println("TestVariable: using alternate method to find '" + varsToCompare[i] + "'");
            BioModel testBioModel = (BioModel) testDocument;
            SpeciesContext[] speciesContexts = testBioModel.getModel().getSpeciesContexts();
            boolean bSkip = false;
            for (int j = 0; j < speciesContexts.length; j++) {
                if (speciesContexts[j].getSpecies().getCommonName().equals(varsToCompare[i])) {
                    testVar = testSimSymbolTable.getVariable(speciesContexts[j].getName());
                    if (testVar == null) {
                        throw new RuntimeException("Speciescontext name '" + speciesContexts[j].getName() + "' not found in testsimsymboltable");
                    }
                    // If we got here it means at least one matching speciescontext was found in TEST with
                    // a species name matching varsToCompare[i].  We can skip because the matching speciesconetext
                    // will be used to do a comparison at some point.
                    bSkip = true;
                    break;
                }
            }
            if (bSkip) {
                // these are tested already using full simcontext names
                System.out.println("Skipping '" + varsToCompare[i] + "' as lookup in testSimSymbolTable");
                continue;
            }
            Simulation refSim = refSimSymbolTable.getSimulation();
            throw new RuntimeException("The variable " + varsToCompare[i] + " was not found in Simulation (" + refSim.getName() + " " + refSim.getVersion().getDate() + ")\n");
        }
        // for each time in timeArray. ('t' is used to index the testTimeArray, for interpolation purposes.)
        int t = 0;
        for (int j = 0; j < refTimeArray.length; j++) {
            // get data block from varName, data from datablock
            SimDataBlock refSimDataBlock = refDataManager.getSimDataBlock(refVar.getName(), refTimeArray[j]);
            double[] refData = refSimDataBlock.getData();
            double[] resampledTestData = null;
            if (bTimesEqual) {
                // If time arrays for both sims are equal, no need to resample/interpolate, just obtain the datablock from dataManager
                SimDataBlock testSimDataBlock = testDataManager.getSimDataBlock(testVar.getName(), testTimeArray[j]);
                resampledTestData = testSimDataBlock.getData();
            } else {
                // Time resampling (interpolation) needed.
                while ((t < testTimeArray.length - 2) && (refTimeArray[j] >= testTimeArray[t + 1])) {
                    t++;
                }
                SimDataBlock testSimDataBlock_1 = testDataManager.getSimDataBlock(testVar.getName(), testTimeArray[t]);
                double[] testData_1 = testSimDataBlock_1.getData();
                SimDataBlock testSimDataBlock_2 = testDataManager.getSimDataBlock(testVar.getName(), testTimeArray[t + 1]);
                double[] testData_2 = testSimDataBlock_2.getData();
                resampledTestData = new double[testData_1.length];
                // 
                for (int m = 0; m < testData_1.length; m++) {
                    resampledTestData[m] = testData_1[m] + (testData_2[m] - testData_1[m]) * (refTimeArray[j] - testTimeArray[t]) / (testTimeArray[t + 1] - testTimeArray[t]);
                }
            }
            // Spatial resampling (interpolation) ...
            double[] spaceResampledData = new double[refData.length];
            if (!testMathDesc.getGeometry().getExtent().compareEqual(refMathDesc.getGeometry().getExtent()) || !testMathDesc.getGeometry().getOrigin().compareEqual(refMathDesc.getGeometry().getOrigin())) {
                throw new RuntimeException("Different origins and/or extents for the 2 geometries. Cannot compare the 2 simulations");
            }
            if (testMesh.getSizeX() != refMesh.getSizeX() || testMesh.getSizeY() != refMesh.getSizeY() || testMesh.getSizeZ() != refMesh.getSizeZ()) {
                if (testVar instanceof VolVariable) {
                    if (testMathDesc.getGeometry().getDimension() == 1 && refMathDesc.getGeometry().getDimension() == 1) {
                        spaceResampledData = resample1DSpatial(resampledTestData, testMesh, refMesh);
                    } else if (testMathDesc.getGeometry().getDimension() == 2 && refMathDesc.getGeometry().getDimension() == 2) {
                        spaceResampledData = resample2DSpatial(resampledTestData, testMesh, refMesh);
                    } else if (testMathDesc.getGeometry().getDimension() == 3 && refMathDesc.getGeometry().getDimension() == 3) {
                        spaceResampledData = resample3DSpatial(resampledTestData, testMesh, refMesh);
                    } else {
                        throw new RuntimeException("Comparison of 2 simulations with different geometry dimensions are not handled at this time!");
                    }
                } else {
                    throw new RuntimeException("spatial resampling for variable type: " + testVar.getClass().getName() + " not supported");
                }
            } else {
                // no space resampling required
                if (testVar instanceof MemVariable) {
                    // 
                    if (membraneIndexMapping == null) {
                        membraneIndexMapping = testMesh.getMembraneIndexMapping(refMesh);
                    }
                    spaceResampledData = new double[resampledTestData.length];
                    for (int k = 0; k < resampledTestData.length; k++) {
                        spaceResampledData[k] = resampledTestData[membraneIndexMapping[k]];
                    }
                } else {
                    // 
                    // no reordering needed for other variable types.
                    // 
                    spaceResampledData = resampledTestData;
                }
            }
            // for each point in data block ...
            testDataInfoProvider.getPDEDataContext().setVariableName(testVar.getName());
            for (int k = 0; k < refData.length; k++) {
                if (!testDataInfoProvider.isDefined(k)) {
                    continue;
                }
                // Determine maxRef, minRef, maxAbsErr for variable
                // SubDomain testSubDomain = null;
                String sn = null;
                VariableType refVarType = refDataID.getVariableType();
                if (refVarType.equals(VariableType.VOLUME)) {
                    // testSubDomain = refVolSubDomainLookup[k];
                    sn = refVolSubDomainLookup[k].getName();
                } else if (refVarType.equals(VariableType.MEMBRANE)) {
                    // testSubDomain = refMemSubDomainLookup[k];
                    sn = refMemSubDomainLookup[k].getName();
                } else if (refVarType.equals(VariableType.MEMBRANE_REGION)) {
                    sn = "MRV_" + i;
                } else if (refVarType.equals(VariableType.VOLUME_REGION)) {
                    sn = "VRV_" + i;
                } else {
                    throw new RuntimeException("Var " + refVar.getName() + " not supported yet!");
                }
                // hashKey = refVar.getName()+":"+testSubDomain.getName();
                hashKey = refVar.getName() + ":" + sn;
                tempVar = tempVarHash.get(hashKey);
                if (tempVar == null) {
                    tempVar = new DataErrorSummary(null);
                    tempVarHash.put(hashKey, tempVar);
                }
                tempVar.addDataValues(refData[k], spaceResampledData[k], refTimeArray[j], k, absErrorThreshold, relErrorThreshold);
            }
        // end for (k)
        }
    // end for (j)
    }
    // end for (i)
    Enumeration<String> enumKeys = tempVarHash.keys();
    while (enumKeys.hasMoreElements()) {
        String key = enumKeys.nextElement();
        DataErrorSummary tempVarSummary = tempVarHash.get(key);
        simComparisonSummary.addVariableComparisonSummary(new VariableComparisonSummary(key, tempVarSummary.getMinRef(), tempVarSummary.getMaxRef(), tempVarSummary.getMaxAbsoluteError(), tempVarSummary.getMaxRelativeError(), tempVarSummary.getL2Norm(), tempVarSummary.getTimeAtMaxAbsoluteError(), tempVarSummary.getIndexAtMaxAbsoluteError(), tempVarSummary.getTimeAtMaxRelativeError(), tempVarSummary.getIndexAtMaxRelativeError()));
    }
    return simComparisonSummary;
}

Example 24 with MembraneSubDomain

use of cbit.vcell.math.MembraneSubDomain in project vcell by virtualcell.

the class SmoldynFileWriter method writeDiffusions.

private void writeDiffusions() throws ExpressionBindingException, ExpressionException, MathException {
    // writer diffusion properties
    printWriter.println("# diffusion properties");
    Enumeration<SubDomain> subDomainEnumeration = mathDesc.getSubDomains();
    while (subDomainEnumeration.hasMoreElements()) {
        SubDomain subDomain = subDomainEnumeration.nextElement();
        List<ParticleProperties> particlePropertiesList = subDomain.getParticleProperties();
        for (ParticleProperties pp : particlePropertiesList) {
            String variableName = null;
            if (subDomain instanceof MembraneSubDomain) {
                variableName = getVariableName(pp.getVariable(), subDomain);
            } else {
                variableName = getVariableName(pp.getVariable(), null);
            }
            try {
                double diffConstant = subsituteFlattenToConstant(pp.getDiffusion());
                printWriter.println(SmoldynVCellMapper.SmoldynKeyword.difc + " " + variableName + " " + diffConstant);
            } catch (NotAConstantException ex) {
                throw new ExpressionException("diffusion coefficient for variable " + variableName + " is not a constant. Constants are required for all diffusion coefficients");
            }
        }
    }
    printWriter.println();
}

Example 25 with MembraneSubDomain

use of cbit.vcell.math.MembraneSubDomain in project vcell by virtualcell.

the class SmoldynFileWriter method writeInitialConcentration.

private int writeInitialConcentration(ParticleInitialConditionConcentration initialConcentration, SubDomain subDomain, Variable variable, String variableName, StringBuilder sb) throws ExpressionException, MathException {
    SimpleSymbolTable simpleSymbolTable = new SimpleSymbolTable(new String[] { ReservedVariable.X.getName(), ReservedVariable.Y.getName(), ReservedVariable.Z.getName() });
    Expression disExpression = new Expression(initialConcentration.getDistribution());
    disExpression.bindExpression(simulationSymbolTable);
    disExpression = simulationSymbolTable.substituteFunctions(disExpression).flatten();
    disExpression.bindExpression(simpleSymbolTable);
    double[] values = new double[3];
    if (dimension == 1) {
        if (disExpression.getSymbolBinding(ReservedVariable.Y.getName()) != null || disExpression.getSymbolBinding(ReservedVariable.Z.getName()) != null) {
            throw new MathException(VCellErrorMessages.getSmoldynWrongCoordinates("'y' or 'z'", dimension, variable, disExpression));
        }
    } else if (dimension == 2) {
        if (disExpression.getSymbolBinding(ReservedVariable.Z.getName()) != null) {
            throw new MathException(VCellErrorMessages.getSmoldynWrongCoordinates("'z'", dimension, variable, disExpression));
        }
    }
    int totalCount = 0;
    StringBuilder localsb = new StringBuilder();
    if (subDomain instanceof CompartmentSubDomain) {
        MeshSpecification meshSpecification = simulation.getMeshSpecification();
        ISize sampleSize = meshSpecification.getSamplingSize();
        int numX = sampleSize.getX();
        int numY = dimension < 2 ? 1 : sampleSize.getY();
        int numZ = dimension < 3 ? 1 : sampleSize.getZ();
        boolean bCellCentered = simulation.hasCellCenteredMesh();
        double dx = meshSpecification.getDx(bCellCentered);
        double dy = meshSpecification.getDy(bCellCentered);
        double dz = meshSpecification.getDz(bCellCentered);
        Origin origin = resampledGeometry.getGeometrySpec().getOrigin();
        double ox = origin.getX();
        double oy = origin.getY();
        double oz = origin.getZ();
        Extent extent = resampledGeometry.getExtent();
        double ex = extent.getX();
        double ey = extent.getY();
        double ez = extent.getZ();
        int offset = 0;
        for (int k = 0; k < numZ; k++) {
            double centerz = oz + k * dz;
            double loz = Math.max(oz, centerz - dz / 2);
            double hiz = Math.min(oz + ez, centerz + dz / 2);
            double lz = hiz - loz;
            values[2] = centerz;
            for (int j = 0; j < numY; j++) {
                double centery = oy + j * dy;
                double loy = Math.max(oy, centery - dy / 2);
                double hiy = Math.min(oy + ey, centery + dy / 2);
                values[1] = centery;
                double ly = hiy - loy;
                for (int i = 0; i < numX; i++) {
                    int regionIndex = resampledGeometry.getGeometrySurfaceDescription().getRegionImage().getRegionInfoFromOffset(offset).getRegionIndex();
                    offset++;
                    GeometricRegion region = resampledGeometry.getGeometrySurfaceDescription().getGeometricRegions(regionIndex);
                    if (region instanceof VolumeGeometricRegion) {
                        if (!((VolumeGeometricRegion) region).getSubVolume().getName().equals(subDomain.getName())) {
                            continue;
                        }
                    }
                    double centerx = ox + i * dx;
                    double lox = Math.max(ox, centerx - dx / 2);
                    double hix = Math.min(ox + ex, centerx + dx / 2);
                    double lx = hix - lox;
                    values[0] = centerx;
                    double volume = lx;
                    if (dimension > 1) {
                        volume *= ly;
                        if (dimension > 2) {
                            volume *= lz;
                        }
                    }
                    double expectedCount = disExpression.evaluateVector(values) * volume;
                    if (expectedCount <= 0) {
                        continue;
                    }
                    long count = dist.nextPoisson(expectedCount);
                    if (count <= 0) {
                        continue;
                    }
                    totalCount += count;
                    localsb.append(SmoldynVCellMapper.SmoldynKeyword.mol + " " + count + " " + variableName + " " + (float) lox + "-" + (float) hix);
                    if (lg.isDebugEnabled()) {
                        lg.debug("Component subdomain " + variableName + " count " + count);
                    }
                    if (dimension > 1) {
                        localsb.append(" " + loy + "-" + hiy);
                        if (dimension > 2) {
                            localsb.append(" " + loz + "-" + hiz);
                        }
                    }
                    localsb.append("\n");
                }
            }
        }
        // otherwise we append the distributed molecules in different small boxes
        try {
            subsituteFlattenToConstant(disExpression);
            sb.append(SmoldynVCellMapper.SmoldynKeyword.compartment_mol);
            sb.append(" " + totalCount + " " + variableName + " " + subDomain.getName() + "\n");
        } catch (// can not be evaluated to a constant
        Exception e) {
            sb.append(localsb);
        }
    } else if (subDomain instanceof MembraneSubDomain) {
        ArrayList<TrianglePanel> trianglePanelList = membraneSubdomainTriangleMap.get(subDomain);
        for (TrianglePanel trianglePanel : trianglePanelList) {
            Triangle triangle = trianglePanel.triangle;
            switch(dimension) {
                case 1:
                    values[0] = triangle.getNodes(0).getX();
                    break;
                case 2:
                    {
                        double centroidX = triangle.getNodes(0).getX();
                        double centroidY = triangle.getNodes(0).getY();
                        if (triangle.getNodes(0).getX() == triangle.getNodes(1).getX() && triangle.getNodes(0).getY() == triangle.getNodes(1).getY()) {
                            centroidX += triangle.getNodes(2).getX();
                            centroidY += triangle.getNodes(2).getY();
                        } else {
                            centroidX += triangle.getNodes(1).getX();
                            centroidY += triangle.getNodes(1).getY();
                        }
                        values[0] = centroidX / 2;
                        values[1] = centroidY / 2;
                        break;
                    }
                case 3:
                    {
                        double centroidX = triangle.getNodes(0).getX() + triangle.getNodes(1).getX() + triangle.getNodes(2).getX();
                        double centroidY = triangle.getNodes(0).getY() + triangle.getNodes(1).getY() + triangle.getNodes(2).getY();
                        double centroidZ = triangle.getNodes(0).getZ() + triangle.getNodes(1).getZ() + triangle.getNodes(2).getZ();
                        values[0] = centroidX / 3;
                        values[1] = centroidY / 3;
                        values[2] = centroidZ / 3;
                        break;
                    }
            }
            double expectedCount = disExpression.evaluateVector(values) * triangle.getArea();
            if (expectedCount <= 0) {
                continue;
            }
            long count = dist.nextPoisson(expectedCount);
            if (count <= 0) {
                continue;
            }
            totalCount += count;
            if (lg.isDebugEnabled()) {
                lg.debug("Membrane subdomain " + subDomain.getName() + ' ' + variableName + " count " + count);
            }
            localsb.append(SmoldynVCellMapper.SmoldynKeyword.surface_mol + " " + count + " " + variableName + " " + subDomain.getName() + " " + SmoldynVCellMapper.SmoldynKeyword.tri + " " + trianglePanel.name + "\n");
        }
        // otherwise we append the distributed molecules in different small boxes
        try {
            subsituteFlattenToConstant(disExpression);
            sb.append(SmoldynVCellMapper.SmoldynKeyword.surface_mol);
            sb.append(" " + totalCount + " " + variableName + " " + subDomain.getName() + " " + SmoldynVCellMapper.SmoldynKeyword.all + " " + SmoldynVCellMapper.SmoldynKeyword.all + "\n");
        } catch (// can not be evaluated to a constant
        Exception e) {
            sb.append(localsb);
        }
    }
    if (lg.isDebugEnabled()) {
        lg.debug("Subdomain " + subDomain.getName() + ' ' + variableName + " total count " + totalCount);
    }
    return totalCount;
}