Examples with FeatureMapping cbit.vcell.mapping.FeatureMapping used on opensource projects

Example 21 with FeatureMapping

use of cbit.vcell.mapping.FeatureMapping in project vcell by virtualcell.

the class StructureMappingTable method getSQLValueList.

/**
 * This method was created in VisualAge.
 * @return java.lang.String
 * @param key KeyValue
 * @param modelName java.lang.String
 */
public String getSQLValueList(InsertHashtable hash, KeyValue Key, KeyValue simContextKey, StructureMapping structureMapping) throws DataAccessException {
    GeometryClass geometryClass = structureMapping.getGeometryClass();
    KeyValue geometryClassKey = (geometryClass == null ? null : hash.getDatabaseKey(geometryClass));
    if (geometryClass != null && geometryClassKey == null) {
        geometryClassKey = geometryClass.getKey();
        if (geometryClassKey == null) {
            throw new DataAccessException("no key for GeometryClass '" + geometryClass.getName() + "' " + geometryClass.getClass().getName());
        }
    }
    KeyValue structureKey = hash.getDatabaseKey(structureMapping.getStructure());
    if (structureKey == null) {
        structureKey = structureMapping.getStructure().getKey();
        if (structureKey == null) {
            throw new DataAccessException("no key for structure " + structureMapping.getStructure());
        }
    }
    StringBuffer buffer = new StringBuffer();
    buffer.append("(");
    buffer.append(Key + ",");
    buffer.append((geometryClass instanceof SubVolume ? geometryClassKey : null) + ",");
    buffer.append(structureKey + ",");
    buffer.append(simContextKey + ",");
    buffer.append((/*isResolved*/
    false ? 1 : 0) + ",");
    if (structureMapping instanceof FeatureMapping) {
        FeatureMapping fm = (FeatureMapping) structureMapping;
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append("'" + fm.getBoundaryConditionTypeXm().boundaryTypeStringValue() + "',");
        buffer.append("'" + fm.getBoundaryConditionTypeXp().boundaryTypeStringValue() + "',");
        buffer.append("'" + fm.getBoundaryConditionTypeYm().boundaryTypeStringValue() + "',");
        buffer.append("'" + fm.getBoundaryConditionTypeYp().boundaryTypeStringValue() + "',");
        buffer.append("'" + fm.getBoundaryConditionTypeZm().boundaryTypeStringValue() + "',");
        buffer.append("'" + fm.getBoundaryConditionTypeZp().boundaryTypeStringValue() + "',");
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append("null" + ",");
    } else if (structureMapping instanceof MembraneMapping) {
        MembraneMapping mm = (MembraneMapping) structureMapping;
        // amended Sept. 17th, 2007
        if (mm.getSurfaceToVolumeParameter().getExpression() != null) {
            buffer.append("'" + TokenMangler.getSQLEscapedString(mm.getSurfaceToVolumeParameter().getExpression().infix()) + "',");
        } else {
            buffer.append("null" + ",");
        }
        if (mm.getVolumeFractionParameter().getExpression() != null) {
            buffer.append("'" + TokenMangler.getSQLEscapedString(mm.getVolumeFractionParameter().getExpression().infix()) + "',");
        } else {
            buffer.append("null" + ",");
        }
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append("null" + ",");
        buffer.append((mm.getCalculateVoltage() ? 1 : 0) + ",");
        try {
            buffer.append(mm.getSpecificCapacitanceParameter().getExpression().evaluateConstant() + ",");
        } catch (cbit.vcell.parser.ExpressionException e) {
            e.printStackTrace(System.out);
            throw new DataAccessException("specific capacitance for " + mm.getMembrane().getName() + " not constant: (" + e.getMessage() + ")");
        }
        buffer.append("'" + TokenMangler.getSQLEscapedString(mm.getInitialVoltageParameter().getExpression().infix()) + "',");
    }
    if (structureMapping.getSizeParameter().getExpression() != null)
        buffer.append("'" + TokenMangler.getSQLEscapedString(structureMapping.getSizeParameter().getExpression().infix()) + "',");
    else
        buffer.append("'',");
    if (structureMapping instanceof FeatureMapping) {
        FeatureMapping fm = (FeatureMapping) structureMapping;
        if (fm.getVolumePerUnitAreaParameter().getExpression() != null) {
            buffer.append("'" + TokenMangler.getSQLEscapedString(fm.getVolumePerUnitAreaParameter().getExpression().infix()) + "',");
        } else {
            buffer.append("null" + ",");
        }
        if (fm.getVolumePerUnitVolumeParameter().getExpression() != null) {
            buffer.append("'" + TokenMangler.getSQLEscapedString(fm.getVolumePerUnitVolumeParameter().getExpression().infix()) + "',");
        } else {
            buffer.append("null" + ",");
        }
        // if structureMapping is a featureMapping, 'areaPerUnitArea' and 'areaPerUnitVol' params are null, so fill those in here
        buffer.append("null,null");
    } else if (structureMapping instanceof MembraneMapping) {
        // if structureMapping is a featureMapping, 'volPerUnitArea' and 'volPerUnitVol' params are null, so fill those in here; then memMapping params
        buffer.append("null,null,");
        MembraneMapping mm = (MembraneMapping) structureMapping;
        if (mm.getAreaPerUnitAreaParameter().getExpression() != null) {
            buffer.append("'" + TokenMangler.getSQLEscapedString(mm.getAreaPerUnitAreaParameter().getExpression().infix()) + "',");
        } else {
            buffer.append("null" + ",");
        }
        if (mm.getAreaPerUnitVolumeParameter().getExpression() != null) {
            buffer.append("'" + TokenMangler.getSQLEscapedString(mm.getAreaPerUnitVolumeParameter().getExpression().infix()) + "'");
        } else {
            buffer.append("null");
        }
    }
    buffer.append("," + (geometryClass instanceof SurfaceClass ? geometryClassKey : null));
    buffer.append(")");
    return buffer.toString();
}

Example 22 with FeatureMapping

use of cbit.vcell.mapping.FeatureMapping in project vcell by virtualcell.

the class RunRefSimulationFastOp method createRefSimBioModel.

private BioModel createRefSimBioModel(KeyValue simKey, User owner, Origin origin, Extent extent, ROI cellROI_2D, double timeStepVal, TimeBounds timeBounds, String varName, Expression initialConcentration, FieldFunctionArguments psfFFA, Expression chirpedDiffusionRate) throws Exception {
    int numX = cellROI_2D.getRoiImages()[0].getNumX();
    int numY = cellROI_2D.getRoiImages()[0].getNumY();
    int numZ = cellROI_2D.getRoiImages().length;
    short[] shortPixels = cellROI_2D.getRoiImages()[0].getPixels();
    byte[] bytePixels = new byte[numX * numY * numZ];
    final byte EXTRACELLULAR_PIXVAL = 0;
    final byte CYTOSOL_PIXVAL = 1;
    for (int i = 0; i < bytePixels.length; i++) {
        if (shortPixels[i] != 0) {
            bytePixels[i] = CYTOSOL_PIXVAL;
        }
    }
    VCImage maskImage;
    try {
        maskImage = new VCImageUncompressed(null, bytePixels, extent, numX, numY, numZ);
    } catch (ImageException e) {
        e.printStackTrace();
        throw new RuntimeException("failed to create mask image for geometry");
    }
    Geometry geometry = new Geometry("geometry", maskImage);
    geometry.getGeometrySpec().setOrigin(origin);
    if (geometry.getGeometrySpec().getNumSubVolumes() != 2) {
        throw new Exception("Cell ROI has no ExtraCellular.");
    }
    String EXTRACELLULAR_NAME = "ec";
    String CYTOSOL_NAME = "cyt";
    String PLASMAMEMBRANE_NAME = "pm";
    ImageSubVolume subVolume0 = (ImageSubVolume) geometry.getGeometrySpec().getSubVolume(0);
    ImageSubVolume subVolume1 = (ImageSubVolume) geometry.getGeometrySpec().getSubVolume(1);
    if (subVolume0.getPixelValue() == EXTRACELLULAR_PIXVAL) {
        subVolume0.setName(EXTRACELLULAR_NAME);
        subVolume1.setName(CYTOSOL_NAME);
    } else {
        subVolume0.setName(CYTOSOL_NAME);
        subVolume1.setName(EXTRACELLULAR_NAME);
    }
    geometry.getGeometrySurfaceDescription().updateAll();
    BioModel bioModel = new BioModel(null);
    bioModel.setName("unnamed");
    Model model = new Model("model");
    bioModel.setModel(model);
    Feature extracellular = model.addFeature(EXTRACELLULAR_NAME);
    Feature cytosol = model.addFeature(CYTOSOL_NAME);
    Membrane plasmaMembrane = model.addMembrane(PLASMAMEMBRANE_NAME);
    SimulationContext simContext = new SimulationContext(bioModel.getModel(), geometry);
    bioModel.addSimulationContext(simContext);
    FeatureMapping cytosolFeatureMapping = (FeatureMapping) simContext.getGeometryContext().getStructureMapping(cytosol);
    FeatureMapping extracellularFeatureMapping = (FeatureMapping) simContext.getGeometryContext().getStructureMapping(extracellular);
    MembraneMapping plasmaMembraneMapping = (MembraneMapping) simContext.getGeometryContext().getStructureMapping(plasmaMembrane);
    SubVolume cytSubVolume = geometry.getGeometrySpec().getSubVolume(CYTOSOL_NAME);
    SubVolume exSubVolume = geometry.getGeometrySpec().getSubVolume(EXTRACELLULAR_NAME);
    SurfaceClass pmSurfaceClass = geometry.getGeometrySurfaceDescription().getSurfaceClass(exSubVolume, cytSubVolume);
    cytosolFeatureMapping.setGeometryClass(cytSubVolume);
    extracellularFeatureMapping.setGeometryClass(exSubVolume);
    plasmaMembraneMapping.setGeometryClass(pmSurfaceClass);
    cytosolFeatureMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    extracellularFeatureMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    plasmaMembraneMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    // Mobile Species
    Species diffusingSpecies = model.addSpecies(new Species("species", "Mobile bleachable species"));
    SpeciesContext diffusingSpeciesContext = model.addSpeciesContext(diffusingSpecies, cytosol);
    diffusingSpeciesContext.setName(varName);
    SpeciesContextSpec scs = simContext.getReactionContext().getSpeciesContextSpec(diffusingSpeciesContext);
    scs.getInitialConditionParameter().setExpression(initialConcentration);
    chirpedDiffusionRate.bindExpression(scs);
    scs.getDiffusionParameter().setExpression(chirpedDiffusionRate);
    // simContext.getMicroscopeMeasurement().addFluorescentSpecies(speciesContexts[0]);
    // simContext.getMicroscopeMeasurement().setConvolutionKernel(new MicroscopeMeasurement.ProjectionZKernel());
    MathDescription mathDescription = simContext.createNewMathMapping().getMathDescription();
    // maybe there is a way that works for simContext.getMicroscopeMeasurement().... but this is needed now.
    mathDescription.addVariable(new Function(Simulation.PSF_FUNCTION_NAME, new Expression(psfFFA.infix()), null));
    simContext.setMathDescription(mathDescription);
    SimulationVersion simVersion = new SimulationVersion(simKey, "sim1", owner, new GroupAccessNone(), new KeyValue("0"), new BigDecimal(0), new Date(), VersionFlag.Current, "", null);
    Simulation newSimulation = new Simulation(simVersion, simContext.getMathDescription());
    newSimulation.getSolverTaskDescription().setSolverDescription(SolverDescription.FiniteVolumeStandalone);
    simContext.addSimulation(newSimulation);
    newSimulation.getSolverTaskDescription().setTimeBounds(timeBounds);
    newSimulation.getSolverTaskDescription().setOutputTimeSpec(new UniformOutputTimeSpec(timeStepVal));
    newSimulation.getMeshSpecification().setSamplingSize(cellROI_2D.getISize());
    newSimulation.getSolverTaskDescription().setTimeStep(new TimeStep(timeStepVal, timeStepVal, timeStepVal));
    return bioModel;
}

Example 23 with FeatureMapping

use of cbit.vcell.mapping.FeatureMapping in project vcell by virtualcell.

the class RunRefSimulationOp method createRefSimBioModel.

private static BioModel createRefSimBioModel(KeyValue simKey, User owner, Origin origin, Extent extent, ROI cellROI_2D, double timeStepVal, TimeBounds timeBounds, String varName, Expression initialConcentration, double baseDiffusionRate) throws Exception {
    int numX = cellROI_2D.getRoiImages()[0].getNumX();
    int numY = cellROI_2D.getRoiImages()[0].getNumY();
    int numZ = cellROI_2D.getRoiImages().length;
    short[] shortPixels = cellROI_2D.getRoiImages()[0].getPixels();
    byte[] bytePixels = new byte[numX * numY * numZ];
    final byte EXTRACELLULAR_PIXVAL = 0;
    final byte CYTOSOL_PIXVAL = 1;
    for (int i = 0; i < bytePixels.length; i++) {
        if (shortPixels[i] != 0) {
            bytePixels[i] = CYTOSOL_PIXVAL;
        }
    }
    VCImage maskImage;
    try {
        maskImage = new VCImageUncompressed(null, bytePixels, extent, numX, numY, numZ);
    } catch (ImageException e) {
        e.printStackTrace();
        throw new RuntimeException("failed to create mask image for geometry");
    }
    Geometry geometry = new Geometry("geometry", maskImage);
    geometry.getGeometrySpec().setOrigin(origin);
    if (geometry.getGeometrySpec().getNumSubVolumes() != 2) {
        throw new Exception("Cell ROI has no ExtraCellular.");
    }
    String EXTRACELLULAR_NAME = "ec";
    String CYTOSOL_NAME = "cyt";
    String PLASMAMEMBRANE_NAME = "pm";
    ImageSubVolume subVolume0 = (ImageSubVolume) geometry.getGeometrySpec().getSubVolume(0);
    ImageSubVolume subVolume1 = (ImageSubVolume) geometry.getGeometrySpec().getSubVolume(1);
    if (subVolume0.getPixelValue() == EXTRACELLULAR_PIXVAL) {
        subVolume0.setName(EXTRACELLULAR_NAME);
        subVolume1.setName(CYTOSOL_NAME);
    } else {
        subVolume0.setName(CYTOSOL_NAME);
        subVolume1.setName(EXTRACELLULAR_NAME);
    }
    geometry.getGeometrySurfaceDescription().updateAll();
    BioModel bioModel = new BioModel(null);
    bioModel.setName("unnamed");
    Model model = new Model("model");
    bioModel.setModel(model);
    Feature extracellular = model.addFeature(EXTRACELLULAR_NAME);
    Feature cytosol = model.addFeature(CYTOSOL_NAME);
    Membrane plasmaMembrane = model.addMembrane(PLASMAMEMBRANE_NAME);
    SimulationContext simContext = new SimulationContext(bioModel.getModel(), geometry);
    bioModel.addSimulationContext(simContext);
    FeatureMapping cytosolFeatureMapping = (FeatureMapping) simContext.getGeometryContext().getStructureMapping(cytosol);
    FeatureMapping extracellularFeatureMapping = (FeatureMapping) simContext.getGeometryContext().getStructureMapping(extracellular);
    MembraneMapping plasmaMembraneMapping = (MembraneMapping) simContext.getGeometryContext().getStructureMapping(plasmaMembrane);
    SubVolume cytSubVolume = geometry.getGeometrySpec().getSubVolume(CYTOSOL_NAME);
    SubVolume exSubVolume = geometry.getGeometrySpec().getSubVolume(EXTRACELLULAR_NAME);
    SurfaceClass pmSurfaceClass = geometry.getGeometrySurfaceDescription().getSurfaceClass(exSubVolume, cytSubVolume);
    cytosolFeatureMapping.setGeometryClass(cytSubVolume);
    extracellularFeatureMapping.setGeometryClass(exSubVolume);
    plasmaMembraneMapping.setGeometryClass(pmSurfaceClass);
    cytosolFeatureMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    extracellularFeatureMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    plasmaMembraneMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    // Mobile Species
    Species diffusingSpecies = model.addSpecies(new Species("species", "Mobile bleachable species"));
    SpeciesContext diffusingSpeciesContext = model.addSpeciesContext(diffusingSpecies, cytosol);
    diffusingSpeciesContext.setName(varName);
    SpeciesContextSpec scs = simContext.getReactionContext().getSpeciesContextSpec(diffusingSpeciesContext);
    scs.getInitialConditionParameter().setExpression(initialConcentration);
    scs.getDiffusionParameter().setExpression(new Expression(baseDiffusionRate));
    // simContext.getMicroscopeMeasurement().addFluorescentSpecies(speciesContexts[0]);
    // simContext.getMicroscopeMeasurement().setConvolutionKernel(new MicroscopeMeasurement.ProjectionZKernel());
    simContext.setMathDescription(simContext.createNewMathMapping().getMathDescription());
    SimulationVersion simVersion = new SimulationVersion(simKey, "sim1", owner, new GroupAccessNone(), new KeyValue("0"), new BigDecimal(0), new Date(), VersionFlag.Current, "", null);
    Simulation newSimulation = new Simulation(simVersion, simContext.getMathDescription());
    newSimulation.getSolverTaskDescription().setSolverDescription(SolverDescription.FiniteVolumeStandalone);
    simContext.addSimulation(newSimulation);
    newSimulation.getSolverTaskDescription().setTimeBounds(timeBounds);
    newSimulation.getSolverTaskDescription().setOutputTimeSpec(new UniformOutputTimeSpec(timeStepVal));
    newSimulation.getMeshSpecification().setSamplingSize(cellROI_2D.getISize());
    newSimulation.getSolverTaskDescription().setTimeStep(new TimeStep(timeStepVal, timeStepVal, timeStepVal));
    return bioModel;
}

Example 24 with FeatureMapping

use of cbit.vcell.mapping.FeatureMapping in project vcell by virtualcell.

the class Generate2DSimBioModelOp method generateBioModel.

public BioModel generateBioModel(Extent extent, ROI cellROI_2D, double[] timeStamps, Integer indexFirstPostbleach, double primaryDiffusionRate, double primaryFraction, double bleachMonitorRate, Double secondaryDiffusionRate, double secondaryFraction, Double bindingSiteConcentration, double bindingOnRate, double bindingOffRate, String extracellularName, String cytosolName, User owner, KeyValue simKey) throws PropertyVetoException, ExpressionException, ModelException, GeometryException, ImageException, MappingException, MathException, MatrixException {
    if (owner == null) {
        throw new IllegalArgumentException("Owner is not defined");
    }
    double df = primaryDiffusionRate;
    double ff = primaryFraction;
    double bwmRate = bleachMonitorRate;
    double dc = 0.0;
    double fc = 0.0;
    if (secondaryDiffusionRate != null) {
        dc = secondaryDiffusionRate;
        fc = secondaryFraction;
    }
    double bs = 0.0;
    double onRate = 0.0;
    double offRate = 0.0;
    if (bindingSiteConcentration != null) {
        bs = bindingSiteConcentration;
        onRate = bindingOnRate;
        offRate = bindingOffRate;
    }
    // immobile fraction
    double fimm = 1 - ff - fc;
    if (fimm < epsilon && fimm > (0 - epsilon)) {
        fimm = 0;
    }
    if (fimm < (1 + epsilon) && fimm > (1 - epsilon)) {
        fimm = 1;
    }
    int startingIndexForRecovery = indexFirstPostbleach;
    TimeBounds timeBounds = new TimeBounds(0.0, timeStamps[timeStamps.length - 1] - timeStamps[startingIndexForRecovery]);
    double timeStepVal = timeStamps[startingIndexForRecovery + 1] - timeStamps[startingIndexForRecovery];
    ROI cellROI = cellROI_2D;
    int numX = cellROI.getISize().getX();
    int numY = cellROI.getISize().getY();
    int numZ = cellROI.getISize().getZ();
    short[] shortPixels = cellROI.getRoiImages()[0].getPixels();
    byte[] bytePixels = new byte[numX * numY * numZ];
    final byte EXTRACELLULAR_PIXVAL = 0;
    final byte CYTOSOL_PIXVAL = 1;
    for (int i = 0; i < bytePixels.length; i++) {
        if (shortPixels[i] != 0) {
            bytePixels[i] = CYTOSOL_PIXVAL;
        }
    }
    VCImage maskImage;
    try {
        maskImage = new VCImageUncompressed(null, bytePixels, extent, numX, numY, numZ);
    } catch (ImageException e) {
        e.printStackTrace();
        throw new RuntimeException("failed to create mask image for geometry");
    }
    Geometry geometry = new Geometry("geometry", maskImage);
    if (geometry.getGeometrySpec().getNumSubVolumes() != 2) {
        throw new IllegalArgumentException("Cell ROI has no ExtraCellular.");
    }
    String EXTRACELLULAR_NAME = extracellularName;
    String CYTOSOL_NAME = cytosolName;
    int subVolume0PixVal = ((ImageSubVolume) geometry.getGeometrySpec().getSubVolume(0)).getPixelValue();
    geometry.getGeometrySpec().getSubVolume(0).setName((subVolume0PixVal == EXTRACELLULAR_PIXVAL ? EXTRACELLULAR_NAME : CYTOSOL_NAME));
    int subVolume1PixVal = ((ImageSubVolume) geometry.getGeometrySpec().getSubVolume(1)).getPixelValue();
    geometry.getGeometrySpec().getSubVolume(1).setName((subVolume1PixVal == CYTOSOL_PIXVAL ? CYTOSOL_NAME : EXTRACELLULAR_NAME));
    geometry.getGeometrySurfaceDescription().updateAll();
    BioModel bioModel = new BioModel(null);
    bioModel.setName("unnamed");
    Model model = new Model("model");
    bioModel.setModel(model);
    model.addFeature(EXTRACELLULAR_NAME);
    Feature extracellular = (Feature) model.getStructure(EXTRACELLULAR_NAME);
    model.addFeature(CYTOSOL_NAME);
    Feature cytosol = (Feature) model.getStructure(CYTOSOL_NAME);
    // Membrane mem = model.addMembrane(EXTRACELLULAR_CYTOSOL_MEM_NAME);
    // model.getStructureTopology().setInsideFeature(mem, cytosol);
    // model.getStructureTopology().setOutsideFeature(mem, extracellular);
    String roiDataName = ROI_EXTDATA_NAME;
    final int SPECIES_COUNT = 4;
    final int FREE_SPECIES_INDEX = 0;
    final int BS_SPECIES_INDEX = 1;
    final int COMPLEX_SPECIES_INDEX = 2;
    final int IMMOBILE_SPECIES_INDEX = 3;
    Expression[] diffusionConstants = null;
    Species[] species = null;
    SpeciesContext[] speciesContexts = null;
    Expression[] initialConditions = null;
    diffusionConstants = new Expression[SPECIES_COUNT];
    species = new Species[SPECIES_COUNT];
    speciesContexts = new SpeciesContext[SPECIES_COUNT];
    initialConditions = new Expression[SPECIES_COUNT];
    // total initial condition
    FieldFunctionArguments postBleach_first = new FieldFunctionArguments(roiDataName, "postbleach_first", new Expression(0), VariableType.VOLUME);
    FieldFunctionArguments prebleach_avg = new FieldFunctionArguments(roiDataName, "prebleach_avg", new Expression(0), VariableType.VOLUME);
    Expression expPostBleach_first = new Expression(postBleach_first.infix());
    Expression expPreBleach_avg = new Expression(prebleach_avg.infix());
    Expression totalIniCondition = Expression.div(expPostBleach_first, expPreBleach_avg);
    // Free Species
    diffusionConstants[FREE_SPECIES_INDEX] = new Expression(df);
    species[FREE_SPECIES_INDEX] = new Species(SPECIES_NAME_PREFIX_MOBILE, "Mobile bleachable species");
    speciesContexts[FREE_SPECIES_INDEX] = new SpeciesContext(null, species[FREE_SPECIES_INDEX].getCommonName(), species[FREE_SPECIES_INDEX], cytosol);
    initialConditions[FREE_SPECIES_INDEX] = Expression.mult(new Expression(ff), totalIniCondition);
    // Immobile Species (No diffusion)
    // Set very small diffusion rate on immobile to force evaluation as state variable (instead of FieldData function)
    // If left as a function errors occur because functions involving FieldData require a database connection
    final String IMMOBILE_DIFFUSION_KLUDGE = "1e-14";
    diffusionConstants[IMMOBILE_SPECIES_INDEX] = new Expression(IMMOBILE_DIFFUSION_KLUDGE);
    species[IMMOBILE_SPECIES_INDEX] = new Species(SPECIES_NAME_PREFIX_IMMOBILE, "Immobile bleachable species");
    speciesContexts[IMMOBILE_SPECIES_INDEX] = new SpeciesContext(null, species[IMMOBILE_SPECIES_INDEX].getCommonName(), species[IMMOBILE_SPECIES_INDEX], cytosol);
    initialConditions[IMMOBILE_SPECIES_INDEX] = Expression.mult(new Expression(fimm), totalIniCondition);
    // BS Species
    diffusionConstants[BS_SPECIES_INDEX] = new Expression(IMMOBILE_DIFFUSION_KLUDGE);
    species[BS_SPECIES_INDEX] = new Species(SPECIES_NAME_PREFIX_BINDING_SITE, "Binding Site species");
    speciesContexts[BS_SPECIES_INDEX] = new SpeciesContext(null, species[BS_SPECIES_INDEX].getCommonName(), species[BS_SPECIES_INDEX], cytosol);
    initialConditions[BS_SPECIES_INDEX] = Expression.mult(new Expression(bs), totalIniCondition);
    // Complex species
    diffusionConstants[COMPLEX_SPECIES_INDEX] = new Expression(dc);
    species[COMPLEX_SPECIES_INDEX] = new Species(SPECIES_NAME_PREFIX_SLOW_MOBILE, "Slower mobile bleachable species");
    speciesContexts[COMPLEX_SPECIES_INDEX] = new SpeciesContext(null, species[COMPLEX_SPECIES_INDEX].getCommonName(), species[COMPLEX_SPECIES_INDEX], cytosol);
    initialConditions[COMPLEX_SPECIES_INDEX] = Expression.mult(new Expression(fc), totalIniCondition);
    // add reactions to species if there is bleachWhileMonitoring rate.
    for (int i = 0; i < initialConditions.length; i++) {
        model.addSpecies(species[i]);
        model.addSpeciesContext(speciesContexts[i]);
        // reaction with BMW rate, which should not be applied to binding site
        if (!(species[i].getCommonName().equals(SPECIES_NAME_PREFIX_BINDING_SITE))) {
            SimpleReaction simpleReaction = new SimpleReaction(model, cytosol, speciesContexts[i].getName() + "_bleach", true);
            model.addReactionStep(simpleReaction);
            simpleReaction.addReactant(speciesContexts[i], 1);
            MassActionKinetics massActionKinetics = new MassActionKinetics(simpleReaction);
            simpleReaction.setKinetics(massActionKinetics);
            KineticsParameter kforward = massActionKinetics.getForwardRateParameter();
            simpleReaction.getKinetics().setParameterValue(kforward, new Expression(new Double(bwmRate)));
        }
    }
    // add the binding reaction: F + BS <-> C
    SimpleReaction simpleReaction2 = new SimpleReaction(model, cytosol, "reac_binding", true);
    model.addReactionStep(simpleReaction2);
    simpleReaction2.addReactant(speciesContexts[FREE_SPECIES_INDEX], 1);
    simpleReaction2.addReactant(speciesContexts[BS_SPECIES_INDEX], 1);
    simpleReaction2.addProduct(speciesContexts[COMPLEX_SPECIES_INDEX], 1);
    MassActionKinetics massActionKinetics = new MassActionKinetics(simpleReaction2);
    simpleReaction2.setKinetics(massActionKinetics);
    KineticsParameter kforward = massActionKinetics.getForwardRateParameter();
    KineticsParameter kreverse = massActionKinetics.getReverseRateParameter();
    simpleReaction2.getKinetics().setParameterValue(kforward, new Expression(new Double(onRate)));
    simpleReaction2.getKinetics().setParameterValue(kreverse, new Expression(new Double(offRate)));
    // create simulation context
    SimulationContext simContext = new SimulationContext(bioModel.getModel(), geometry);
    bioModel.addSimulationContext(simContext);
    FeatureMapping cytosolFeatureMapping = (FeatureMapping) simContext.getGeometryContext().getStructureMapping(cytosol);
    FeatureMapping extracellularFeatureMapping = (FeatureMapping) simContext.getGeometryContext().getStructureMapping(extracellular);
    SubVolume cytSubVolume = geometry.getGeometrySpec().getSubVolume(CYTOSOL_NAME);
    SubVolume exSubVolume = geometry.getGeometrySpec().getSubVolume(EXTRACELLULAR_NAME);
    SurfaceClass pmSurfaceClass = geometry.getGeometrySurfaceDescription().getSurfaceClass(exSubVolume, cytSubVolume);
    cytosolFeatureMapping.setGeometryClass(cytSubVolume);
    extracellularFeatureMapping.setGeometryClass(exSubVolume);
    cytosolFeatureMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    extracellularFeatureMapping.getUnitSizeParameter().setExpression(new Expression(1.0));
    for (int i = 0; i < speciesContexts.length; i++) {
        SpeciesContextSpec scs = simContext.getReactionContext().getSpeciesContextSpec(speciesContexts[i]);
        scs.getInitialConditionParameter().setExpression(initialConditions[i]);
        scs.getDiffusionParameter().setExpression(diffusionConstants[i]);
    }
    MathMapping mathMapping = simContext.createNewMathMapping();
    MathDescription mathDesc = mathMapping.getMathDescription();
    // Add total fluorescence as function of mobile(optional: and slower mobile) and immobile fractions
    mathDesc.addVariable(new Function(SPECIES_NAME_PREFIX_COMBINED, new Expression(species[FREE_SPECIES_INDEX].getCommonName() + "+" + species[COMPLEX_SPECIES_INDEX].getCommonName() + "+" + species[IMMOBILE_SPECIES_INDEX].getCommonName()), null));
    simContext.setMathDescription(mathDesc);
    SimulationVersion simVersion = new SimulationVersion(simKey, "sim1", owner, new GroupAccessNone(), new KeyValue("0"), new BigDecimal(0), new Date(), VersionFlag.Current, "", null);
    Simulation newSimulation = new Simulation(simVersion, mathDesc);
    simContext.addSimulation(newSimulation);
    newSimulation.getSolverTaskDescription().setTimeBounds(timeBounds);
    newSimulation.getMeshSpecification().setSamplingSize(cellROI.getISize());
    // newSimulation.getSolverTaskDescription().setTimeStep(timeStep); // Sundials doesn't need time step
    newSimulation.getSolverTaskDescription().setSolverDescription(SolverDescription.SundialsPDE);
    // use exp time step as output time spec
    newSimulation.getSolverTaskDescription().setOutputTimeSpec(new UniformOutputTimeSpec(timeStepVal));
    return bioModel;
}