Examples with Compartment org.sbml.jsbml.Compartment used on opensource projects

Example 1 with Compartment

use of org.sbml.jsbml.Compartment in project vcell by virtualcell.

the class SBMLExporter method addCompartments.

/**
 * addCompartments comment.
 * @throws XMLStreamException
 * @throws SbmlException
 */
protected void addCompartments() throws XMLStreamException, SbmlException {
    Model vcModel = vcBioModel.getModel();
    cbit.vcell.model.Structure[] vcStructures = vcModel.getStructures();
    for (int i = 0; i < vcStructures.length; i++) {
        Compartment sbmlCompartment = sbmlModel.createCompartment();
        sbmlCompartment.setId(TokenMangler.mangleToSName(vcStructures[i].getName()));
        sbmlCompartment.setName(vcStructures[i].getName());
        VCUnitDefinition sbmlSizeUnit = null;
        StructureTopology structTopology = getSelectedSimContext().getModel().getStructureTopology();
        Structure parentStructure = structTopology.getParentStructure(vcStructures[i]);
        if (vcStructures[i] instanceof Feature) {
            sbmlCompartment.setSpatialDimensions(3);
            String outside = null;
            if (parentStructure != null) {
                outside = TokenMangler.mangleToSName(parentStructure.getName());
            }
            if (outside != null) {
                if (outside.length() > 0) {
                    sbmlCompartment.setOutside(outside);
                }
            }
            sbmlSizeUnit = sbmlExportSpec.getVolumeUnits();
            UnitDefinition unitDefn = getOrCreateSBMLUnit(sbmlSizeUnit);
            sbmlCompartment.setUnits(unitDefn);
        } else if (vcStructures[i] instanceof Membrane) {
            Membrane vcMembrane = (Membrane) vcStructures[i];
            sbmlCompartment.setSpatialDimensions(2);
            Feature outsideFeature = structTopology.getOutsideFeature(vcMembrane);
            if (outsideFeature != null) {
                sbmlCompartment.setOutside(TokenMangler.mangleToSName(outsideFeature.getName()));
                sbmlSizeUnit = sbmlExportSpec.getAreaUnits();
                UnitDefinition unitDefn = getOrCreateSBMLUnit(sbmlSizeUnit);
                sbmlCompartment.setUnits(unitDefn);
            } else if (lg.isEnabledFor(Level.WARN)) {
                lg.warn(this.sbmlModel.getName() + " membrame " + vcMembrane.getName() + " has not outside feature");
            }
        }
        sbmlCompartment.setConstant(true);
        StructureMapping vcStructMapping = getSelectedSimContext().getGeometryContext().getStructureMapping(vcStructures[i]);
        try {
            if (vcStructMapping.getSizeParameter().getExpression() != null) {
                sbmlCompartment.setSize(vcStructMapping.getSizeParameter().getExpression().evaluateConstant());
            } else {
            // really no need to set sizes of compartments in spatial ..... ????
            // throw new RuntimeException("Compartment size not set for compartment \"" + vcStructures[i].getName() + "\" ; Please set size and try exporting again.");
            }
        } catch (cbit.vcell.parser.ExpressionException e) {
            // If it is in the catch block, it means that the compartment size was probably not a double, but an assignment.
            // Check if the expression for the compartment size is not null and add it as an assignment rule.
            Expression sizeExpr = vcStructMapping.getSizeParameter().getExpression();
            if (sizeExpr != null) {
                ASTNode ruleFormulaNode = getFormulaFromExpression(sizeExpr);
                AssignmentRule assignRule = sbmlModel.createAssignmentRule();
                assignRule.setVariable(vcStructures[i].getName());
                assignRule.setMath(ruleFormulaNode);
                // If compartmentSize is specified by an assignment rule, the 'constant' field should be set to 'false' (default - true).
                sbmlCompartment.setConstant(false);
                sbmlModel.addRule(assignRule);
            }
        }
        // Add the outside compartment of given compartment as annotation to the compartment.
        // This is required later while trying to read in compartments ...
        Element sbmlImportRelatedElement = null;
        // if (parentStructure != null) {
        // sbmlImportRelatedElement = new Element(XMLTags.VCellRelatedInfoTag, sbml_vcml_ns);
        // Element compartmentElement = new Element(XMLTags.OutsideCompartmentTag, sbml_vcml_ns);
        // compartmentElement.setAttribute(XMLTags.NameAttrTag, TokenMangler.mangleToSName(parentStructure.getName()));
        // sbmlImportRelatedElement.addContent(compartmentElement);
        // }
        // Get annotation (RDF and non-RDF) for reactionStep from SBMLAnnotationUtils
        sbmlAnnotationUtil.writeAnnotation(vcStructures[i], sbmlCompartment, sbmlImportRelatedElement);
        // Now set notes,
        sbmlAnnotationUtil.writeNotes(vcStructures[i], sbmlCompartment);
    }
}

Example 2 with Compartment

use of org.sbml.jsbml.Compartment in project vcell by virtualcell.

the class SBMLImporter method addCompartments.

protected void addCompartments(VCMetaData metaData) {
    if (sbmlModel == null) {
        throw new SBMLImportException("SBML model is NULL");
    }
    ListOf listofCompartments = sbmlModel.getListOfCompartments();
    if (listofCompartments == null) {
        throw new SBMLImportException("Cannot have 0 compartments in model");
    }
    // Using a vector here - since there can be SBML models with only
    // features and no membranes.
    // Hence keeping the datastructure flexible.
    List<Structure> structList = new ArrayList<Structure>();
    java.util.HashMap<String, Structure> structureNameMap = new java.util.HashMap<String, Structure>();
    try {
        int structIndx = 0;
        // First pass - create the structures
        for (int i = 0; i < sbmlModel.getNumCompartments(); i++) {
            org.sbml.jsbml.Compartment compartment = (org.sbml.jsbml.Compartment) listofCompartments.get(i);
            String compartmentName = compartment.getId();
            if (!compartment.isSetSpatialDimensions() || compartment.getSpatialDimensions() == 3) {
                Feature feature = new Feature(compartmentName);
                structList.add(structIndx, feature);
                structureNameMap.put(compartmentName, feature);
            } else if (compartment.getSpatialDimensions() == 2) {
                // spatial dimensions is set (see clause above)
                Membrane membrane = new Membrane(compartmentName);
                structList.add(structIndx, membrane);
                structureNameMap.put(compartmentName, membrane);
            } else {
                logger.sendMessage(VCLogger.Priority.HighPriority, VCLogger.ErrorType.CompartmentError, "Cannot deal with spatial dimension : " + compartment.getSpatialDimensions() + " for compartments at this time.");
                throw new SBMLImportException("Cannot deal with spatial dimension : " + compartment.getSpatialDimensions() + " for compartments at this time");
            }
            structIndx++;
            sbmlAnnotationUtil.readAnnotation(structList.get(i), compartment);
            sbmlAnnotationUtil.readNotes(structList.get(i), compartment);
        }
        // Second pass - connect the structures
        Model model = vcBioModel.getSimulationContext(0).getModel();
        for (int i = 0; i < sbmlModel.getNumCompartments(); i++) {
            org.sbml.jsbml.Compartment sbmlCompartment = (org.sbml.jsbml.Compartment) listofCompartments.get(i);
            String outsideCompartmentId = null;
            if (sbmlCompartment.getOutside() != null && sbmlCompartment.getOutside().length() > 0) {
                // compartment.getOutside returns the Sid of the 'outside'
                // compartment, so get the compartment from model.
                outsideCompartmentId = sbmlCompartment.getOutside();
            } else {
                Element sbmlImportRelatedElement = sbmlAnnotationUtil.readVCellSpecificAnnotation(sbmlCompartment);
                if (sbmlImportRelatedElement != null) {
                    Element embeddedVCellElement = sbmlImportRelatedElement.getChild(OUTSIDE_COMP_NAME, Namespace.getNamespace(SBMLUtils.SBML_VCELL_NS));
                    if (embeddedVCellElement != null) {
                        outsideCompartmentId = embeddedVCellElement.getAttributeValue(XMLTags.NameTag);
                    }
                }
            }
            if (outsideCompartmentId != null) {
                Compartment outsideCompartment = sbmlModel.getCompartment(outsideCompartmentId);
                Structure outsideStructure = (Structure) structureNameMap.get(outsideCompartment.getId());
                Structure struct = (Structure) structureNameMap.get(sbmlCompartment.getId());
                struct.setSbmlParentStructure(outsideStructure);
            }
        }
        // set the structures in vc vcBioModel.getSimulationContext(0)
        Structure[] structures = structList.toArray(new Structure[structList.size()]);
        model.setStructures(structures);
        // Third pass thro' the list of compartments : set the sizes on the
        // structureMappings - can be done only after setting
        // the structures on vcBioModel.getSimulationContext(0).
        boolean allSizesSet = true;
        for (int i = 0; i < sbmlModel.getNumCompartments(); i++) {
            org.sbml.jsbml.Compartment compartment = (org.sbml.jsbml.Compartment) listofCompartments.get(i);
            String compartmentName = compartment.getId();
            if (!compartment.isSetSize()) {
                // logger.sendMessage(VCLogger.Priority.MediumPriority,
                // TranslationMessage.COMPARTMENT_ERROR,
                // "compartment "+compartmentName+" size is not set in SBML document.");
                allSizesSet = false;
            } else {
                double size = compartment.getSize();
                // Check if size is specified by a rule
                Expression sizeExpr = getValueFromAssignmentRule(compartmentName);
                if (sizeExpr != null && !sizeExpr.isNumeric()) {
                    // We are NOT handling compartment sizes with assignment
                    // rules/initial Assignments that are NON-numeric at
                    // this time ...
                    logger.sendMessage(VCLogger.Priority.HighPriority, VCLogger.ErrorType.CompartmentError, "compartment " + compartmentName + " size has an assignment rule which is not a numeric value, cannot handle it at this time.");
                }
                // check if it is specified by initial assignment
                if (sizeExpr == null) {
                    InitialAssignment compInitAssgnment = sbmlModel.getInitialAssignment(compartmentName);
                    if (compInitAssgnment != null) {
                        sizeExpr = getExpressionFromFormula(compInitAssgnment.getMath());
                    }
                }
                if (sizeExpr != null && !sizeExpr.isNumeric()) {
                    // We are NOT handling compartment sizes with assignment
                    // rules/initial Assignments that are NON-numeric at
                    // this time ...
                    logger.sendMessage(VCLogger.Priority.HighPriority, VCLogger.ErrorType.CompartmentError, "compartment " + compartmentName + " size has an initial assignment which is not a numeric value, cannot handle it at this time.");
                }
                // from 'size' attribute,
                if (sizeExpr == null) {
                    sizeExpr = new Expression(size);
                }
                // Now set the size of the compartment.
                Structure struct = model.getStructure(compartmentName);
                StructureMapping.StructureMappingParameter mappingParam = vcBioModel.getSimulationContext(0).getGeometryContext().getStructureMapping(struct).getSizeParameter();
                mappingParam.setExpression(sizeExpr);
            }
        }
        // size is set
        if (allSizesSet) {
            StructureSizeSolver.updateRelativeStructureSizes(vcBioModel.getSimulationContext(0));
        }
    } catch (Exception e) {
        e.printStackTrace(System.out);
        throw new SBMLImportException("Error adding Feature to vcModel " + e.getMessage(), e);
    }
}

Example 3 with Compartment

use of org.sbml.jsbml.Compartment in project vcell by virtualcell.

the class SBMLImporter method addGeometry.

protected void addGeometry() {
    // get a Geometry object via SpatialModelPlugin object.
    org.sbml.jsbml.ext.spatial.Geometry sbmlGeometry = getSbmlGeometry();
    if (sbmlGeometry == null) {
        return;
    }
    int dimension = 0;
    Origin vcOrigin = null;
    Extent vcExtent = null;
    {
        // local code block
        // get a CoordComponent object via the Geometry object.
        ListOf<CoordinateComponent> listOfCoordComps = sbmlGeometry.getListOfCoordinateComponents();
        if (listOfCoordComps == null) {
            throw new RuntimeException("Cannot have 0 coordinate compartments in geometry");
        }
        // coord component
        double ox = 0.0;
        double oy = 0.0;
        double oz = 0.0;
        double ex = 1.0;
        double ey = 1.0;
        double ez = 1.0;
        for (CoordinateComponent coordComponent : listOfCoordComps) {
            double minValue = coordComponent.getBoundaryMinimum().getValue();
            double maxValue = coordComponent.getBoundaryMaximum().getValue();
            switch(coordComponent.getType()) {
                case cartesianX:
                    {
                        ox = minValue;
                        ex = maxValue - minValue;
                        break;
                    }
                case cartesianY:
                    {
                        oy = minValue;
                        ey = maxValue - minValue;
                        break;
                    }
                case cartesianZ:
                    {
                        oz = minValue;
                        ez = maxValue - minValue;
                        break;
                    }
            }
            dimension++;
        }
        vcOrigin = new Origin(ox, oy, oz);
        vcExtent = new Extent(ex, ey, ez);
    }
    // from geometry definition, find out which type of geometry : image or
    // analytic or CSG
    AnalyticGeometry analyticGeometryDefinition = null;
    CSGeometry csGeometry = null;
    SampledFieldGeometry segmentedSampledFieldGeometry = null;
    SampledFieldGeometry distanceMapSampledFieldGeometry = null;
    ParametricGeometry parametricGeometry = null;
    for (int i = 0; i < sbmlGeometry.getListOfGeometryDefinitions().size(); i++) {
        GeometryDefinition gd_temp = sbmlGeometry.getListOfGeometryDefinitions().get(i);
        if (!gd_temp.isSetIsActive()) {
            continue;
        }
        if (gd_temp instanceof AnalyticGeometry) {
            analyticGeometryDefinition = (AnalyticGeometry) gd_temp;
        } else if (gd_temp instanceof SampledFieldGeometry) {
            SampledFieldGeometry sfg = (SampledFieldGeometry) gd_temp;
            String sfn = sfg.getSampledField();
            ListOf<SampledField> sampledFields = sbmlGeometry.getListOfSampledFields();
            if (sampledFields.size() > 1) {
                throw new RuntimeException("only one sampled field supported");
            }
            InterpolationKind ik = sampledFields.get(0).getInterpolationType();
            switch(ik) {
                case linear:
                    distanceMapSampledFieldGeometry = sfg;
                    break;
                case nearestneighbor:
                    segmentedSampledFieldGeometry = sfg;
                    break;
                default:
                    lg.warn("Unsupported " + sampledFields.get(0).getName() + " interpolation type " + ik);
            }
        } else if (gd_temp instanceof CSGeometry) {
            csGeometry = (CSGeometry) gd_temp;
        } else if (gd_temp instanceof ParametricGeometry) {
            parametricGeometry = (ParametricGeometry) gd_temp;
        } else {
            throw new RuntimeException("unsupported geometry definition type " + gd_temp.getClass().getSimpleName());
        }
    }
    if (analyticGeometryDefinition == null && segmentedSampledFieldGeometry == null && distanceMapSampledFieldGeometry == null && csGeometry == null) {
        throw new SBMLImportException("VCell supports only Analytic, Image based (segmentd or distance map) or Constructed Solid Geometry at this time.");
    }
    GeometryDefinition selectedGeometryDefinition = null;
    if (csGeometry != null) {
        selectedGeometryDefinition = csGeometry;
    } else if (analyticGeometryDefinition != null) {
        selectedGeometryDefinition = analyticGeometryDefinition;
    } else if (segmentedSampledFieldGeometry != null) {
        selectedGeometryDefinition = segmentedSampledFieldGeometry;
    } else if (distanceMapSampledFieldGeometry != null) {
        selectedGeometryDefinition = distanceMapSampledFieldGeometry;
    } else if (parametricGeometry != null) {
        selectedGeometryDefinition = parametricGeometry;
    } else {
        throw new SBMLImportException("no geometry definition found");
    }
    Geometry vcGeometry = null;
    if (selectedGeometryDefinition == analyticGeometryDefinition || selectedGeometryDefinition == csGeometry) {
        vcGeometry = new Geometry("spatialGeom", dimension);
    } else if (selectedGeometryDefinition == distanceMapSampledFieldGeometry || selectedGeometryDefinition == segmentedSampledFieldGeometry) {
        SampledFieldGeometry sfg = (SampledFieldGeometry) selectedGeometryDefinition;
        // get image from sampledFieldGeometry
        // get a sampledVol object via the listOfSampledVol (from
        // SampledGeometry) object.
        // gcw gcw gcw
        String sfn = sfg.getSampledField();
        SampledField sf = null;
        for (SampledField sampledField : sbmlGeometry.getListOfSampledFields()) {
            if (sampledField.getSpatialId().equals(sfn)) {
                sf = sampledField;
            }
        }
        int numX = sf.getNumSamples1();
        int numY = sf.getNumSamples2();
        int numZ = sf.getNumSamples3();
        int[] samples = new int[sf.getSamplesLength()];
        StringTokenizer tokens = new StringTokenizer(sf.getSamples(), " ");
        int count = 0;
        while (tokens.hasMoreTokens()) {
            int sample = Integer.parseInt(tokens.nextToken());
            samples[count++] = sample;
        }
        byte[] imageInBytes = new byte[samples.length];
        if (selectedGeometryDefinition == distanceMapSampledFieldGeometry) {
            // 
            for (int i = 0; i < imageInBytes.length; i++) {
                // if (interpolation(samples[i])<0){
                if (samples[i] < 0) {
                    imageInBytes[i] = -1;
                } else {
                    imageInBytes[i] = 1;
                }
            }
        } else {
            for (int i = 0; i < imageInBytes.length; i++) {
                imageInBytes[i] = (byte) samples[i];
            }
        }
        try {
            // System.out.println("ident " + sf.getId() + " " + sf.getName());
            VCImage vcImage = null;
            CompressionKind ck = sf.getCompression();
            DataKind dk = sf.getDataType();
            if (ck == CompressionKind.deflated) {
                vcImage = new VCImageCompressed(null, imageInBytes, vcExtent, numX, numY, numZ);
            } else {
                switch(dk) {
                    case UINT8:
                    case UINT16:
                    case UINT32:
                        vcImage = new VCImageUncompressed(null, imageInBytes, vcExtent, numX, numY, numZ);
                    default:
                }
            }
            if (vcImage == null) {
                throw new SbmlException("Unsupported type combination " + ck + ", " + dk + " for sampled field " + sf.getName());
            }
            vcImage.setName(sf.getId());
            ListOf<SampledVolume> sampledVolumes = sfg.getListOfSampledVolumes();
            final int numSampledVols = sampledVolumes.size();
            if (numSampledVols == 0) {
                throw new RuntimeException("Cannot have 0 sampled volumes in sampledField (image_based) geometry");
            }
            // check to see if values are uniquely integer , add set up scaling if necessary
            double scaleFactor = checkPixelScaling(sampledVolumes, 1);
            if (scaleFactor != 1) {
                double checkScaleFactor = checkPixelScaling(sampledVolumes, scaleFactor);
                VCAssert.assertTrue(checkScaleFactor != scaleFactor, "Scale factor check failed");
            }
            VCPixelClass[] vcpixelClasses = new VCPixelClass[numSampledVols];
            // get pixel classes for geometry
            for (int i = 0; i < numSampledVols; i++) {
                SampledVolume sVol = sampledVolumes.get(i);
                // from subVolume, get pixelClass?
                final int scaled = (int) (scaleFactor * sVol.getSampledValue());
                vcpixelClasses[i] = new VCPixelClass(null, sVol.getDomainType(), scaled);
            }
            vcImage.setPixelClasses(vcpixelClasses);
            // now create image geometry
            vcGeometry = new Geometry("spatialGeom", vcImage);
        } catch (Exception e) {
            e.printStackTrace(System.out);
            throw new RuntimeException("Unable to create image from SampledFieldGeometry : " + e.getMessage());
        }
    }
    GeometrySpec vcGeometrySpec = vcGeometry.getGeometrySpec();
    vcGeometrySpec.setOrigin(vcOrigin);
    try {
        vcGeometrySpec.setExtent(vcExtent);
    } catch (PropertyVetoException e) {
        e.printStackTrace(System.out);
        throw new SBMLImportException("Unable to set extent on VC geometry : " + e.getMessage(), e);
    }
    // get listOfDomainTypes via the Geometry object.
    ListOf<DomainType> listOfDomainTypes = sbmlGeometry.getListOfDomainTypes();
    if (listOfDomainTypes == null || listOfDomainTypes.size() < 1) {
        throw new SBMLImportException("Cannot have 0 domainTypes in geometry");
    }
    // get a listOfDomains via the Geometry object.
    ListOf<Domain> listOfDomains = sbmlGeometry.getListOfDomains();
    if (listOfDomains == null || listOfDomains.size() < 1) {
        throw new SBMLImportException("Cannot have 0 domains in geometry");
    }
    // ListOfGeometryDefinitions listOfGeomDefns =
    // sbmlGeometry.getListOfGeometryDefinitions();
    // if ((listOfGeomDefns == null) ||
    // (sbmlGeometry.getNumGeometryDefinitions() > 1)) {
    // throw new
    // RuntimeException("Can have only 1 geometry definition in geometry");
    // }
    // use the boolean bAnalytic to create the right kind of subvolume.
    // First match the somVol=domainTypes for spDim=3. Deal witl spDim=2
    // afterwards.
    GeometrySurfaceDescription vcGsd = vcGeometry.getGeometrySurfaceDescription();
    Vector<DomainType> surfaceClassDomainTypesVector = new Vector<DomainType>();
    try {
        for (DomainType dt : listOfDomainTypes) {
            if (dt.getSpatialDimensions() == 3) {
                // subvolume
                if (selectedGeometryDefinition == analyticGeometryDefinition) {
                    // will set expression later - when reading in Analytic
                    // Volumes in GeometryDefinition
                    vcGeometrySpec.addSubVolume(new AnalyticSubVolume(dt.getId(), new Expression(1.0)));
                } else {
                // add SubVolumes later for CSG and Image-based
                }
            } else if (dt.getSpatialDimensions() == 2) {
                surfaceClassDomainTypesVector.add(dt);
            }
        }
        // analytic vol is needed to get the expression for subVols
        if (selectedGeometryDefinition == analyticGeometryDefinition) {
            // get an analyticVol object via the listOfAnalyticVol (from
            // AnalyticGeometry) object.
            ListOf<AnalyticVolume> aVolumes = analyticGeometryDefinition.getListOfAnalyticVolumes();
            if (aVolumes.size() < 1) {
                throw new SBMLImportException("Cannot have 0 Analytic volumes in analytic geometry");
            }
            for (AnalyticVolume analyticVol : aVolumes) {
                // get subVol from VC geometry using analyticVol spatialId;
                // set its expr using analyticVol's math.
                SubVolume vcSubvolume = vcGeometrySpec.getSubVolume(analyticVol.getDomainType());
                CastInfo<AnalyticSubVolume> ci = BeanUtils.attemptCast(AnalyticSubVolume.class, vcSubvolume);
                if (!ci.isGood()) {
                    throw new RuntimeException("analytic volume '" + analyticVol.getId() + "' does not map to any VC subvolume.");
                }
                AnalyticSubVolume asv = ci.get();
                try {
                    Expression subVolExpr = getExpressionFromFormula(analyticVol.getMath());
                    asv.setExpression(subVolExpr);
                } catch (ExpressionException e) {
                    e.printStackTrace(System.out);
                    throw new SBMLImportException("Unable to set expression on subVolume '" + asv.getName() + "'. " + e.getMessage(), e);
                }
            }
        }
        SampledFieldGeometry sfg = BeanUtils.downcast(SampledFieldGeometry.class, selectedGeometryDefinition);
        if (sfg != null) {
            ListOf<SampledVolume> sampledVolumes = sfg.getListOfSampledVolumes();
            int numSampledVols = sampledVolumes.size();
            if (numSampledVols == 0) {
                throw new SBMLImportException("Cannot have 0 sampled volumes in sampledField (image_based) geometry");
            }
            VCPixelClass[] vcpixelClasses = new VCPixelClass[numSampledVols];
            ImageSubVolume[] vcImageSubVols = new ImageSubVolume[numSampledVols];
            // get pixel classes for geometry
            int idx = 0;
            for (SampledVolume sVol : sampledVolumes) {
                // from subVolume, get pixelClass?
                final String name = sVol.getDomainType();
                final int pixelValue = SBMLUtils.ignoreZeroFraction(sVol.getSampledValue());
                VCPixelClass pc = new VCPixelClass(null, name, pixelValue);
                vcpixelClasses[idx] = pc;
                // Create the new Image SubVolume - use index of this for
                // loop as 'handle' for ImageSubVol?
                ImageSubVolume isv = new ImageSubVolume(null, pc, idx);
                isv.setName(name);
                vcImageSubVols[idx++] = isv;
            }
            vcGeometry.getGeometrySpec().setSubVolumes(vcImageSubVols);
        }
        if (selectedGeometryDefinition == csGeometry) {
            ListOf<org.sbml.jsbml.ext.spatial.CSGObject> listOfcsgObjs = csGeometry.getListOfCSGObjects();
            ArrayList<org.sbml.jsbml.ext.spatial.CSGObject> sbmlCSGs = new ArrayList<org.sbml.jsbml.ext.spatial.CSGObject>(listOfcsgObjs);
            // we want the CSGObj with highest ordinal to be the first
            // element in the CSG subvols array.
            Collections.sort(sbmlCSGs, new Comparator<org.sbml.jsbml.ext.spatial.CSGObject>() {

                @Override
                public int compare(org.sbml.jsbml.ext.spatial.CSGObject lhs, org.sbml.jsbml.ext.spatial.CSGObject rhs) {
                    // minus one to reverse sort
                    return -1 * Integer.compare(lhs.getOrdinal(), rhs.getOrdinal());
                }
            });
            int n = sbmlCSGs.size();
            CSGObject[] vcCSGSubVolumes = new CSGObject[n];
            for (int i = 0; i < n; i++) {
                org.sbml.jsbml.ext.spatial.CSGObject sbmlCSGObject = sbmlCSGs.get(i);
                CSGObject vcellCSGObject = new CSGObject(null, sbmlCSGObject.getDomainType(), i);
                vcellCSGObject.setRoot(getVCellCSGNode(sbmlCSGObject.getCSGNode()));
            }
            vcGeometry.getGeometrySpec().setSubVolumes(vcCSGSubVolumes);
        }
        // Call geom.geomSurfDesc.updateAll() to automatically generate
        // surface classes.
        // vcGsd.updateAll();
        vcGeometry.precomputeAll(new GeometryThumbnailImageFactoryAWT(), true, true);
    } catch (Exception e) {
        e.printStackTrace(System.out);
        throw new SBMLImportException("Unable to create VC subVolumes from SBML domainTypes : " + e.getMessage(), e);
    }
    // should now map each SBML domain to right VC geometric region.
    GeometricRegion[] vcGeomRegions = vcGsd.getGeometricRegions();
    ISize sampleSize = vcGsd.getVolumeSampleSize();
    RegionInfo[] regionInfos = vcGsd.getRegionImage().getRegionInfos();
    int numX = sampleSize.getX();
    int numY = sampleSize.getY();
    int numZ = sampleSize.getZ();
    double ox = vcOrigin.getX();
    double oy = vcOrigin.getY();
    double oz = vcOrigin.getZ();
    for (Domain domain : listOfDomains) {
        String domainType = domain.getDomainType();
        InteriorPoint interiorPt = domain.getListOfInteriorPoints().get(0);
        if (interiorPt == null) {
            DomainType currDomainType = null;
            for (DomainType dt : sbmlGeometry.getListOfDomainTypes()) {
                if (dt.getSpatialId().equals(domainType)) {
                    currDomainType = dt;
                }
            }
            if (currDomainType.getSpatialDimensions() == 2) {
                continue;
            }
        }
        Coordinate sbmlInteriorPtCoord = new Coordinate(interiorPt.getCoord1(), interiorPt.getCoord2(), interiorPt.getCoord3());
        for (int j = 0; j < vcGeomRegions.length; j++) {
            if (vcGeomRegions[j] instanceof VolumeGeometricRegion) {
                int regionID = ((VolumeGeometricRegion) vcGeomRegions[j]).getRegionID();
                for (int k = 0; k < regionInfos.length; k++) {
                    // (using gemoRegion regionID).
                    if (regionInfos[k].getRegionIndex() == regionID) {
                        int volIndx = 0;
                        Coordinate nearestPtCoord = null;
                        double minDistance = Double.MAX_VALUE;
                        // represented by SBML 'domain[i]'.
                        for (int z = 0; z < numZ; z++) {
                            for (int y = 0; y < numY; y++) {
                                for (int x = 0; x < numX; x++) {
                                    if (regionInfos[k].isIndexInRegion(volIndx)) {
                                        double unit_z = (numZ > 1) ? ((double) z) / (numZ - 1) : 0.5;
                                        double coordZ = oz + vcExtent.getZ() * unit_z;
                                        double unit_y = (numY > 1) ? ((double) y) / (numY - 1) : 0.5;
                                        double coordY = oy + vcExtent.getY() * unit_y;
                                        double unit_x = (numX > 1) ? ((double) x) / (numX - 1) : 0.5;
                                        double coordX = ox + vcExtent.getX() * unit_x;
                                        // for now, find the shortest dist
                                        // coord. Can refine algo later.
                                        Coordinate vcCoord = new Coordinate(coordX, coordY, coordZ);
                                        double distance = sbmlInteriorPtCoord.distanceTo(vcCoord);
                                        if (distance < minDistance) {
                                            minDistance = distance;
                                            nearestPtCoord = vcCoord;
                                        }
                                    }
                                    volIndx++;
                                }
                            // end - for x
                            }
                        // end - for y
                        }
                        // with domain name
                        if (nearestPtCoord != null) {
                            GeometryClass geomClassSBML = vcGeometry.getGeometryClass(domainType);
                            // we know vcGeometryReg[j] is a VolGeomRegion
                            GeometryClass geomClassVC = ((VolumeGeometricRegion) vcGeomRegions[j]).getSubVolume();
                            if (geomClassSBML.compareEqual(geomClassVC)) {
                                vcGeomRegions[j].setName(domain.getId());
                            }
                        }
                    }
                // end if (regInfoIndx = regId)
                }
            // end - for regInfo
            }
        }
    // end for - vcGeomRegions
    }
    // deal with surfaceClass:spDim2-domainTypes
    for (int i = 0; i < surfaceClassDomainTypesVector.size(); i++) {
        DomainType surfaceClassDomainType = surfaceClassDomainTypesVector.elementAt(i);
        // 'surfaceClassDomainType'
        for (Domain d : listOfDomains) {
            if (d.getDomainType().equals(surfaceClassDomainType.getId())) {
                // get the adjacent domains of this 'surface' domain
                // (surface domain + its 2 adj vol domains)
                Set<Domain> adjacentDomainsSet = getAssociatedAdjacentDomains(sbmlGeometry, d);
                // get the domain types of the adjacent domains in SBML and
                // store the corresponding subVol counterparts from VC for
                // adj vol domains
                Vector<SubVolume> adjacentSubVolumesVector = new Vector<SubVolume>();
                Vector<VolumeGeometricRegion> adjVolGeomRegionsVector = new Vector<VolumeGeometricRegion>();
                Iterator<Domain> iterator = adjacentDomainsSet.iterator();
                while (iterator.hasNext()) {
                    Domain dom = iterator.next();
                    DomainType dt = getBySpatialID(sbmlGeometry.getListOfDomainTypes(), dom.getDomainType());
                    if (dt.getSpatialDimensions() == 3) {
                        // for domain type with sp. dim = 3, get
                        // correspoinding subVol from VC geometry.
                        GeometryClass gc = vcGeometry.getGeometryClass(dt.getId());
                        adjacentSubVolumesVector.add((SubVolume) gc);
                        // store volGeomRegions corresponding to this (vol)
                        // geomClass in adjVolGeomRegionsVector : this
                        // should return ONLY 1 region for subVol.
                        GeometricRegion[] geomRegion = vcGsd.getGeometricRegions(gc);
                        adjVolGeomRegionsVector.add((VolumeGeometricRegion) geomRegion[0]);
                    }
                }
                // there should be only 2 subVols in this vector
                if (adjacentSubVolumesVector.size() != 2) {
                    throw new RuntimeException("Cannot have more or less than 2 subvolumes that are adjacent to surface (membrane) '" + d.getId() + "'");
                }
                // get the surface class with these 2 adj subVols. Set its
                // name to that of 'surfaceClassDomainType'
                SurfaceClass surfacClass = vcGsd.getSurfaceClass(adjacentSubVolumesVector.get(0), adjacentSubVolumesVector.get(1));
                surfacClass.setName(surfaceClassDomainType.getSpatialId());
                // get surfaceGeometricRegion that has adjVolGeomRegions as
                // its adjacent vol geom regions and set its name from
                // domain 'd'
                SurfaceGeometricRegion surfaceGeomRegion = getAssociatedSurfaceGeometricRegion(vcGsd, adjVolGeomRegionsVector);
                if (surfaceGeomRegion != null) {
                    surfaceGeomRegion.setName(d.getId());
                }
            }
        // end if - domain.domainType == surfaceClassDomainType
        }
    // end for - numDomains
    }
    // structureMappings in VC from compartmentMappings in SBML
    try {
        // set geometry first and then set structureMappings?
        vcBioModel.getSimulationContext(0).setGeometry(vcGeometry);
        // update simContextName ...
        vcBioModel.getSimulationContext(0).setName(vcBioModel.getSimulationContext(0).getName() + "_" + vcGeometry.getName());
        Model vcModel = vcBioModel.getSimulationContext(0).getModel();
        ModelUnitSystem vcModelUnitSystem = vcModel.getUnitSystem();
        Vector<StructureMapping> structMappingsVector = new Vector<StructureMapping>();
        SpatialCompartmentPlugin cplugin = null;
        for (int i = 0; i < sbmlModel.getNumCompartments(); i++) {
            Compartment c = sbmlModel.getCompartment(i);
            String cname = c.getName();
            cplugin = (SpatialCompartmentPlugin) c.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
            CompartmentMapping compMapping = cplugin.getCompartmentMapping();
            if (compMapping != null) {
                // final String id = compMapping.getId();
                // final String name = compMapping.getName();
                CastInfo<Structure> ci = SBMLHelper.getTypedStructure(Structure.class, vcModel, cname);
                if (ci.isGood()) {
                    Structure struct = ci.get();
                    String domainType = compMapping.getDomainType();
                    GeometryClass geometryClass = vcGeometry.getGeometryClass(domainType);
                    double unitSize = compMapping.getUnitSize();
                    Feature feat = BeanUtils.downcast(Feature.class, struct);
                    if (feat != null) {
                        FeatureMapping featureMapping = new FeatureMapping(feat, vcBioModel.getSimulationContext(0), vcModelUnitSystem);
                        featureMapping.setGeometryClass(geometryClass);
                        if (geometryClass instanceof SubVolume) {
                            featureMapping.getVolumePerUnitVolumeParameter().setExpression(new Expression(unitSize));
                        } else if (geometryClass instanceof SurfaceClass) {
                            featureMapping.getVolumePerUnitAreaParameter().setExpression(new Expression(unitSize));
                        }
                        structMappingsVector.add(featureMapping);
                    } else if (struct instanceof Membrane) {
                        MembraneMapping membraneMapping = new MembraneMapping((Membrane) struct, vcBioModel.getSimulationContext(0), vcModelUnitSystem);
                        membraneMapping.setGeometryClass(geometryClass);
                        if (geometryClass instanceof SubVolume) {
                            membraneMapping.getAreaPerUnitVolumeParameter().setExpression(new Expression(unitSize));
                        } else if (geometryClass instanceof SurfaceClass) {
                            membraneMapping.getAreaPerUnitAreaParameter().setExpression(new Expression(unitSize));
                        }
                        structMappingsVector.add(membraneMapping);
                    }
                }
            }
        }
        StructureMapping[] structMappings = structMappingsVector.toArray(new StructureMapping[0]);
        vcBioModel.getSimulationContext(0).getGeometryContext().setStructureMappings(structMappings);
        // if type from SBML parameter Boundary Condn is not the same as the
        // boundary type of the
        // structureMapping of structure of paramSpContext, set the boundary
        // condn type of the structureMapping
        // to the value of 'type' from SBML parameter Boundary Condn.
        ListOf<Parameter> listOfGlobalParams = sbmlModel.getListOfParameters();
        for (Parameter sbmlGlobalParam : sbmlModel.getListOfParameters()) {
            SpatialParameterPlugin spplugin = (SpatialParameterPlugin) sbmlGlobalParam.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
            ParameterType paramType = spplugin.getParamType();
            if (!(paramType instanceof BoundaryCondition)) {
                continue;
            }
            BoundaryCondition bCondn = (BoundaryCondition) paramType;
            if (bCondn.isSetVariable()) {
                // get the var of boundaryCondn; find appropriate spContext
                // in vcell;
                SpeciesContext paramSpContext = vcBioModel.getSimulationContext(0).getModel().getSpeciesContext(bCondn.getVariable());
                if (paramSpContext != null) {
                    Structure s = paramSpContext.getStructure();
                    StructureMapping sm = vcBioModel.getSimulationContext(0).getGeometryContext().getStructureMapping(s);
                    if (sm != null) {
                        BoundaryConditionType bct = null;
                        switch(bCondn.getType()) {
                            case Dirichlet:
                                {
                                    bct = BoundaryConditionType.DIRICHLET;
                                    break;
                                }
                            case Neumann:
                                {
                                    bct = BoundaryConditionType.NEUMANN;
                                    break;
                                }
                            case Robin_inwardNormalGradientCoefficient:
                            case Robin_sum:
                            case Robin_valueCoefficient:
                            default:
                                throw new RuntimeException("boundary condition type " + bCondn.getType().name() + " not supported");
                        }
                        for (CoordinateComponent coordComp : getSbmlGeometry().getListOfCoordinateComponents()) {
                            if (bCondn.getSpatialRef().equals(coordComp.getBoundaryMinimum().getSpatialId())) {
                                switch(coordComp.getType()) {
                                    case cartesianX:
                                        {
                                            sm.setBoundaryConditionTypeXm(bct);
                                        }
                                    case cartesianY:
                                        {
                                            sm.setBoundaryConditionTypeYm(bct);
                                        }
                                    case cartesianZ:
                                        {
                                            sm.setBoundaryConditionTypeZm(bct);
                                        }
                                }
                            }
                            if (bCondn.getSpatialRef().equals(coordComp.getBoundaryMaximum().getSpatialId())) {
                                switch(coordComp.getType()) {
                                    case cartesianX:
                                        {
                                            sm.setBoundaryConditionTypeXm(bct);
                                        }
                                    case cartesianY:
                                        {
                                            sm.setBoundaryConditionTypeYm(bct);
                                        }
                                    case cartesianZ:
                                        {
                                            sm.setBoundaryConditionTypeZm(bct);
                                        }
                                }
                            }
                        }
                    } else // sm != null
                    {
                        logger.sendMessage(VCLogger.Priority.MediumPriority, VCLogger.ErrorType.OverallWarning, "No structure " + s.getName() + " requested by species context " + paramSpContext.getName());
                    }
                }
            // end if (paramSpContext != null)
            }
        // end if (bCondn.isSetVar())
        }
        // end for (sbmlModel.numParams)
        vcBioModel.getSimulationContext(0).getGeometryContext().refreshStructureMappings();
        vcBioModel.getSimulationContext(0).refreshSpatialObjects();
    } catch (Exception e) {
        e.printStackTrace(System.out);
        throw new SBMLImportException("Unable to create VC structureMappings from SBML compartment mappings : " + e.getMessage(), e);
    }
}

Example 4 with Compartment

use of org.sbml.jsbml.Compartment in project vcell by virtualcell.

the class MathModel_SBMLExporter method getSBMLString.

/**
 * Insert the method's description here.
 * Creation date: (4/11/2006 11:38:26 AM)
 * @return org.sbml.libsbml.Model
 * @param mathModel cbit.vcell.mathmodel.MathModel
 * @throws XMLStreamException
 * @throws SBMLException
 */
public static String getSBMLString(cbit.vcell.mathmodel.MathModel mathModel, long level, long version) throws cbit.vcell.parser.ExpressionException, java.io.IOException, SBMLException, XMLStreamException {
    if (mathModel.getMathDescription().isSpatial()) {
        throw new RuntimeException("spatial models export to SBML not supported");
    }
    if (mathModel.getMathDescription().hasFastSystems()) {
        throw new RuntimeException("math models with fast systems cannot be exported to SBML");
    }
    if (mathModel.getMathDescription().isNonSpatialStoch()) {
        throw new RuntimeException("stochastic math models cannot be exported to SBML");
    }
    if (!mathModel.getMathDescription().isValid()) {
        throw new RuntimeException("math model has an invalid Math Description, cannot export to SBML");
    }
    String dummyID = "ID_0";
    String compartmentId = "compartment";
    SBMLDocument sbmlDocument = new SBMLDocument((int) level, (int) version);
    Model sbmlModel = sbmlDocument.createModel();
    sbmlModel.setId("MathModel_" + TokenMangler.mangleToSName(mathModel.getName()));
    if (mathModel.getMathDescription().isSpatial()) {
        addGeometry(sbmlModel, mathModel);
    }
    Compartment compartment = sbmlModel.createCompartment();
    compartment.setId(compartmentId);
    // ------ For spatial SBML when implemented -----
    // if (vcMathModel.getMathDescription().isSpatial()){
    // // for spatial model, compartment(s) created in addGeometry(), based on number of subVolumes/surfaceClasses.
    // addGeometry();
    // } else {
    // // for non-spatial mathmodel, only 1 compartment; create it here.
    // String compartmentId = "compartment";
    // org.sbml.libsbml.Compartment compartment = sbmlModel.createCompartment();
    // compartment.setId(compartmentId);
    // }
    MathDescription mathDesc = mathModel.getMathDescription();
    Enumeration<Variable> enumVars = mathDesc.getVariables();
    while (enumVars.hasMoreElements()) {
        Variable vcVar = (Variable) enumVars.nextElement();
        // 
        if (vcVar instanceof cbit.vcell.math.VolVariable) {
        // 
        // skip for now, define later when defining ODEEquations.
        // 
        // org.sbml.libsbml.Species species = model.createSpecies();
        // species.setId(vcVar.getName());
        // species.setCompartment(compartmentId);
        } else if (vcVar instanceof cbit.vcell.math.Constant && ((cbit.vcell.math.Constant) vcVar).getExpression().isNumeric()) {
            Parameter param = sbmlModel.createParameter();
            param.setId(TokenMangler.mangleToSName(vcVar.getName()));
            param.setConstant(true);
            param.setValue(vcVar.getExpression().evaluateConstant());
        } else if (vcVar instanceof cbit.vcell.math.Constant || vcVar instanceof cbit.vcell.math.Function) {
            Parameter param = sbmlModel.createParameter();
            param.setId(TokenMangler.mangleToSName(vcVar.getName()));
            param.setConstant(false);
            // 
            // Function or Constant with expressions - create assignment rule and add to model.
            // 
            ASTNode mathNode = getFormulaFromExpression(vcVar.getExpression(), MathType.REAL);
            AssignmentRule assignmentRule = sbmlModel.createAssignmentRule();
            dummyID = TokenMangler.getNextEnumeratedToken(dummyID);
            assignmentRule.setId(dummyID);
            assignmentRule.setVariable(TokenMangler.mangleToSName(vcVar.getName()));
            assignmentRule.setMath(mathNode);
        // Create a parameter for this function/non-numeric constant, set its value to be 'not-constant',
        // add to model.
        }
    }
    cbit.vcell.math.CompartmentSubDomain subDomain = (cbit.vcell.math.CompartmentSubDomain) mathDesc.getSubDomains().nextElement();
    // System.out.println(model.toSBML());
    Enumeration<Equation> enumEqu = subDomain.getEquations();
    while (enumEqu.hasMoreElements()) {
        cbit.vcell.math.Equation equ = (cbit.vcell.math.Equation) enumEqu.nextElement();
        if (equ instanceof cbit.vcell.math.OdeEquation) {
            // For ODE equations, add the ode variable as a parameter, add rate as a rate rule and init condition as an initial assignment rule.
            Parameter param = sbmlModel.createParameter();
            param.setId(TokenMangler.mangleToSName(equ.getVariable().getName()));
            param.setConstant(false);
            // try to obtain the constant to which the init expression evaluates.
            RateRule rateRule = sbmlModel.createRateRule();
            rateRule.setVariable(TokenMangler.mangleToSName(equ.getVariable().getName()));
            rateRule.setMath(getFormulaFromExpression(equ.getRateExpression(), MathType.REAL));
            InitialAssignment initialAssignment = sbmlModel.createInitialAssignment();
            dummyID = TokenMangler.getNextEnumeratedToken(dummyID);
            initialAssignment.setId(dummyID);
            initialAssignment.setMath(getFormulaFromExpression(equ.getInitialExpression(), MathType.REAL));
            initialAssignment.setVariable(TokenMangler.mangleToSName(equ.getVariable().getName()));
        } else {
            throw new RuntimeException("equation type " + equ.getClass().getName() + " not supported");
        }
    }
    Iterator<Event> vcellEvents = mathDesc.getEvents();
    while (vcellEvents.hasNext()) {
        Event vcellEvent = vcellEvents.next();
        addSbmlEvent(sbmlModel, vcellEvent);
    }
    System.out.println(new SBMLWriter().writeSBMLToString(sbmlDocument));
    // validate the sbml document
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.GENERAL_CONSISTENCY, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.IDENTIFIER_CONSISTENCY, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.MATHML_CONSISTENCY, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.MODELING_PRACTICE, false);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.OVERDETERMINED_MODEL, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.SBO_CONSISTENCY, false);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.UNITS_CONSISTENCY, false);
    sbmlDocument.checkConsistency();
    // sbmlDocument.checkConsistencyOffline();
    long internalErrCount = sbmlDocument.getNumErrors();
    if (internalErrCount > 0) {
        StringBuffer sbmlErrbuf = new StringBuffer();
        for (int i = 0; i < internalErrCount; i++) {
            SBMLError sbmlErr = sbmlDocument.getError(i);
            if (sbmlErr.isError() || sbmlErr.isFatal()) {
                sbmlErrbuf.append(sbmlErr.getCategory() + " :: " + sbmlErr.getSeverity() + " :: " + sbmlErr.getMessage() + "\n");
            }
        }
        if (sbmlErrbuf.length() > 0) {
            throw new RuntimeException("SBML Internal consistency checks failed: \n" + sbmlErrbuf.toString());
        }
    }
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.GENERAL_CONSISTENCY, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.IDENTIFIER_CONSISTENCY, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.UNITS_CONSISTENCY, false);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.MATHML_CONSISTENCY, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.SBO_CONSISTENCY, false);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.OVERDETERMINED_MODEL, true);
    sbmlDocument.setConsistencyChecks(CHECK_CATEGORY.MODELING_PRACTICE, false);
    sbmlDocument.checkConsistency();
    // sbmlDocument.checkConsistencyOffline();
    long errCount = sbmlDocument.getNumErrors();
    if (errCount > 0) {
        StringBuffer sbmlErrbuf = new StringBuffer();
        for (int i = 0; i < errCount; i++) {
            SBMLError sbmlErr = sbmlDocument.getError(i);
            if (sbmlErr.isError() || sbmlErr.isFatal()) {
                sbmlErrbuf.append(sbmlErr.getCategory() + " :: " + sbmlErr.getSeverity() + " :: " + sbmlErr.getMessage() + "\n");
            }
        }
        if (sbmlErrbuf.length() > 0) {
            throw new RuntimeException("SBML validation failed: \n" + sbmlErrbuf.toString());
        }
    }
    // end of validation
    // start writing
    SBMLWriter sbmlWriter = new SBMLWriter();
    String sbmlStr = sbmlWriter.writeSBMLToString(sbmlDocument);
    // Error check - use libSBML's document.printError to print to outputstream
    System.out.println("\n\nSBML Export Error Report");
    sbmlDocument.printErrors(System.out);
    return sbmlStr;
}

Example 5 with Compartment

use of org.sbml.jsbml.Compartment in project vcell by virtualcell.

the class MathModel_SBMLExporter method addGeometry.

private static void addGeometry(Model sbmlModel, MathModel vcMathModel) {
    SpatialModelPlugin mplugin = (SpatialModelPlugin) sbmlModel.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
    // Creates a geometry object via SpatialModelPlugin object.
    org.sbml.jsbml.ext.spatial.Geometry sbmlGeometry = mplugin.getGeometry();
    sbmlGeometry.setCoordinateSystem(GeometryKind.cartesian);
    Geometry vcGeometry = vcMathModel.getGeometry();
    // 
    // list of CoordinateComponents : 1 if geometry is 1-d, 2 if geometry is 2-d, 3 if geometry is 3-d
    // 
    int dimension = vcGeometry.getDimension();
    Extent vcExtent = vcGeometry.getExtent();
    Origin vcOrigin = vcGeometry.getOrigin();
    // add x coordinate component
    CoordinateComponent coordCompX = sbmlGeometry.createCoordinateComponent();
    coordCompX.setSpatialId("CoordCompX");
    coordCompX.setType(CoordinateKind.cartesianX);
    Boundary minX = coordCompX.getBoundaryMaximum();
    minX.setSpatialId("Xmin");
    minX.setValue(vcOrigin.getX());
    Boundary maxX = coordCompX.getBoundaryMaximum();
    maxX.setSpatialId("Xmax");
    maxX.setValue(vcOrigin.getX() + (vcExtent.getX()));
    Parameter parameterX = sbmlModel.createParameter();
    // note for exporting BioModels rather than MathModels, get ReservedSymbol from Model with Role of ReservedSymbolRole.X
    parameterX.setId(ReservedVariable.X.getName());
    SpatialSymbolReference coordXSpatialRef = new SpatialSymbolReference();
    coordXSpatialRef.setSpatialRef(coordCompX.getSpatialId());
    SpatialParameterPlugin parameterXSpatialPlugin = (SpatialParameterPlugin) parameterX.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
    parameterXSpatialPlugin.setParamType(coordXSpatialRef);
    // add y coordinate component
    if (dimension == 2 || dimension == 3) {
        CoordinateComponent coordCompY = sbmlGeometry.createCoordinateComponent();
        coordCompY.setSpatialId("CoordCompY");
        coordCompY.setType(CoordinateKind.cartesianY);
        Boundary minY = coordCompY.getBoundaryMinimum();
        minY.setId("Ymin");
        minY.setValue(vcOrigin.getY());
        Boundary maxY = coordCompY.getBoundaryMaximum();
        maxY.setId("Ymax");
        maxY.setValue(vcOrigin.getY() + (vcExtent.getY()));
        Parameter parameterY = sbmlModel.createParameter();
        // note for exporting BioModels rather than MathModels, get ReservedSymbol from Model with Role of ReservedSymbolRole.Y
        parameterY.setId(ReservedVariable.Y.getName());
        SpatialSymbolReference coordYSpatialRef = new SpatialSymbolReference();
        coordYSpatialRef.setSpatialRef(coordCompY.getSpatialId());
        SpatialParameterPlugin parameterYSpatialPlugin = (SpatialParameterPlugin) parameterY.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
        parameterYSpatialPlugin.setParamType(coordYSpatialRef);
    }
    // add z coordinate component
    if (dimension == 3) {
        CoordinateComponent coordCompZ = sbmlGeometry.createCoordinateComponent();
        coordCompZ.setSpatialId("CoordCompZ");
        coordCompZ.setType(CoordinateKind.cartesianZ);
        Boundary minZ = coordCompZ.getBoundaryMinimum();
        minZ.setId("Zmin");
        minZ.setValue(vcOrigin.getZ());
        Boundary maxZ = coordCompZ.getBoundaryMaximum();
        maxZ.setId("Zmax");
        maxZ.setValue(vcOrigin.getZ() + (vcExtent.getZ()));
        Parameter parameterZ = sbmlModel.createParameter();
        // note for exporting BioModels rather than MathModels, get ReservedSymbol from Model with Role of ReservedSymbolRole.Y
        parameterZ.setId(ReservedVariable.Z.getName());
        SpatialSymbolReference coordZSpatialRef = new SpatialSymbolReference();
        coordZSpatialRef.setSpatialRef(coordCompZ.getSpatialId());
        SpatialParameterPlugin parameterZSpatialPlugin = (SpatialParameterPlugin) parameterZ.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
        parameterZSpatialPlugin.setParamType(coordZSpatialRef);
    }
    // 
    // list of domain types : subvolumes and surface classes from VC
    // Also create compartments - one compartment for each geometryClass. set id and spatialDimension based on type of geometryClass.
    // 
    boolean bAnalyticGeom = false;
    boolean bImageGeom = false;
    GeometryClass[] vcGeomClasses = vcGeometry.getGeometryClasses();
    int numVCGeomClasses = vcGeomClasses.length;
    for (int i = 0; i < numVCGeomClasses; i++) {
        DomainType domainType = sbmlGeometry.createDomainType();
        domainType.setId(vcGeomClasses[i].getName());
        if (vcGeomClasses[i] instanceof SubVolume) {
            if (((SubVolume) vcGeomClasses[i]) instanceof AnalyticSubVolume) {
                bAnalyticGeom = true;
            } else if (((SubVolume) vcGeomClasses[i]) instanceof ImageSubVolume) {
                bImageGeom = true;
            }
            domainType.setSpatialDimensions(3);
        } else if (vcGeomClasses[i] instanceof SurfaceClass) {
            domainType.setSpatialDimensions(2);
        }
    }
    // 
    // list of domains, adjacent domains : from VC geometricRegions
    // 
    GeometrySurfaceDescription vcGSD = vcGeometry.getGeometrySurfaceDescription();
    if (vcGSD.getRegionImage() == null) {
        try {
            vcGSD.updateAll();
        } catch (Exception e) {
            e.printStackTrace(System.out);
            throw new RuntimeException("Unable to generate region images for geometry");
        }
    }
    GeometricRegion[] vcGeometricRegions = vcGSD.getGeometricRegions();
    ISize sampleSize = vcGSD.getVolumeSampleSize();
    int numX = sampleSize.getX();
    int numY = sampleSize.getY();
    int numZ = sampleSize.getZ();
    double ox = vcOrigin.getX();
    double oy = vcOrigin.getY();
    double oz = vcOrigin.getZ();
    RegionInfo[] regionInfos = vcGSD.getRegionImage().getRegionInfos();
    Compartment compartment = null;
    for (int i = 0; i < vcGeometricRegions.length; i++) {
        // domains
        Domain domain = sbmlGeometry.createDomain();
        domain.setId(vcGeometricRegions[i].getName());
        compartment = sbmlModel.createCompartment();
        compartment.setId("compartment" + i);
        if (vcGeometricRegions[i] instanceof VolumeGeometricRegion) {
            domain.setDomainType(((VolumeGeometricRegion) vcGeometricRegions[i]).getSubVolume().getName());
            // domain.setImplicit(false);
            compartment.setSpatialDimensions(3);
            InteriorPoint interiorPt = domain.createInteriorPoint();
            int regionID = ((VolumeGeometricRegion) vcGeometricRegions[i]).getRegionID();
            boolean bFound = false;
            int regInfoIndx = 0;
            for (int j = 0; j < regionInfos.length; j++) {
                regInfoIndx = j;
                if (regionInfos[j].getRegionIndex() == regionID) {
                    int volIndx = 0;
                    for (int z = 0; z < numZ && !bFound; z++) {
                        for (int y = 0; y < numY && !bFound; y++) {
                            for (int x = 0; x < numX && !bFound; x++) {
                                if (regionInfos[j].isIndexInRegion(volIndx)) {
                                    bFound = true;
                                    double unit_z = (numZ > 1) ? ((double) z) / (numZ - 1) : 0.5;
                                    double coordZ = oz + vcExtent.getZ() * unit_z;
                                    double unit_y = (numY > 1) ? ((double) y) / (numY - 1) : 0.5;
                                    double coordY = oy + vcExtent.getY() * unit_y;
                                    double unit_x = (numX > 1) ? ((double) x) / (numX - 1) : 0.5;
                                    double coordX = ox + vcExtent.getX() * unit_x;
                                    interiorPt.setCoord1(coordX);
                                    interiorPt.setCoord2(coordY);
                                    interiorPt.setCoord3(coordZ);
                                }
                                volIndx++;
                            }
                        // end - for x
                        }
                    // end - for y
                    }
                // end - for z
                }
            // end if
            }
            // end for regionInfos
            if (!bFound) {
                throw new RuntimeException("Unable to find interior point for region '" + regionInfos[regInfoIndx].toString());
            }
        } else if (vcGeometricRegions[i] instanceof SurfaceGeometricRegion) {
            SurfaceGeometricRegion vcSurfaceGeomReg = (SurfaceGeometricRegion) vcGeometricRegions[i];
            GeometricRegion geomRegion0 = vcSurfaceGeomReg.getAdjacentGeometricRegions()[0];
            GeometricRegion geomRegion1 = vcSurfaceGeomReg.getAdjacentGeometricRegions()[1];
            SurfaceClass surfaceClass = vcGSD.getSurfaceClass(((VolumeGeometricRegion) geomRegion0).getSubVolume(), ((VolumeGeometricRegion) geomRegion1).getSubVolume());
            domain.setDomainType(surfaceClass.getName());
            // domain.setImplicit(true);
            compartment.setSpatialDimensions(2);
            // adjacent domains : 2 adjacent domain objects for each surfaceClass in VC.
            // adjacent domain 1
            AdjacentDomains adjDomain = sbmlGeometry.createAdjacentDomain();
            adjDomain.setId(TokenMangler.mangleToSName(vcSurfaceGeomReg.getName() + "_" + geomRegion0.getName()));
            adjDomain.setDomain1(vcSurfaceGeomReg.getName());
            adjDomain.setDomain2(geomRegion0.getName());
            // adjacent domain 2
            adjDomain = sbmlGeometry.createAdjacentDomain();
            adjDomain.setId(TokenMangler.mangleToSName(vcSurfaceGeomReg.getName() + "_" + geomRegion1.getName()));
            adjDomain.setDomain1(vcSurfaceGeomReg.getName());
            adjDomain.setDomain2(geomRegion1.getName());
        }
        // 
        // Mathmodel does not have structureMapping, hence creating compartmentMapping while creating domains.
        // @TODO : how to assign unitSize for compartmentMapping?
        // 
        SpatialCompartmentPlugin cplugin = (SpatialCompartmentPlugin) compartment.getPlugin(SBMLUtils.SBML_SPATIAL_NS_PREFIX);
        CompartmentMapping compMapping = cplugin.getCompartmentMapping();
        String compMappingId = TokenMangler.mangleToSName(domain.getDomainType() + "_" + compartment.getId());
        compMapping.setId(compMappingId);
        compMapping.setDomainType(TokenMangler.mangleToSName(domain.getDomainType()));
    // try {
    // compMapping.setUnitSize(1.0);
    // } catch (ExpressionException e) {
    // e.printStackTrace(System.out);
    // throw new RuntimeException("Unable to create compartment mapping for structureMapping '" + compMapping.getId() +"' : " + e.getMessage());
    // }
    }
    AnalyticGeometry sbmlAnalyticGeom = null;
    SampledFieldGeometry sbmlSFGeom = null;
    // both image and analytic subvolumes?? == not handled in SBML at this time.
    if (bAnalyticGeom && !bImageGeom) {
        sbmlAnalyticGeom = sbmlGeometry.createAnalyticGeometry();
        sbmlAnalyticGeom.setId(TokenMangler.mangleToSName(vcGeometry.getName()));
    } else if (bImageGeom && !bAnalyticGeom) {
        // assuming image based geometry if not analytic geometry
        sbmlSFGeom = sbmlGeometry.createSampledFieldGeometry();
        sbmlSFGeom.setId(TokenMangler.mangleToSName(vcGeometry.getName()));
    } else if (bAnalyticGeom && bImageGeom) {
        throw new RuntimeException("Export to SBML of a combination of Image-based and Analytic geometries is not supported yet.");
    } else if (!bAnalyticGeom && !bImageGeom) {
        throw new RuntimeException("Unknown geometry type.");
    }
    // 
    for (int i = 0; i < vcGeomClasses.length; i++) {
        if (vcGeomClasses[i] instanceof AnalyticSubVolume) {
            // add analytiVols to sbmlAnalyticGeometry
            if (sbmlAnalyticGeom != null) {
                AnalyticVolume analyticVol = sbmlAnalyticGeom.createAnalyticVolume();
                analyticVol.setId(vcGeomClasses[i].getName());
                analyticVol.setDomainType(vcGeomClasses[i].getName());
                analyticVol.setFunctionType(FunctionKind.layered);
                analyticVol.setOrdinal(i);
                Expression expr = ((AnalyticSubVolume) vcGeomClasses[i]).getExpression();
                try {
                    String mathMLStr = ExpressionMathMLPrinter.getMathML(expr, true);
                    ASTNode mathMLNode = ASTNode.readMathMLFromString(mathMLStr);
                    analyticVol.setMath(mathMLNode);
                } catch (Exception e) {
                    e.printStackTrace(System.out);
                    throw new RuntimeException("Error converting VC subvolume expression to mathML" + e.getMessage());
                }
            } else {
                throw new RuntimeException("SBML AnalyticGeometry is null.");
            }
        } else if (vcGeomClasses[i] instanceof ImageSubVolume) {
            // add sampledVols to sbmlSFGeometry
            if (sbmlSFGeom != null) {
                SampledVolume sampledVol = sbmlSFGeom.createSampledVolume();
                sampledVol.setId(vcGeomClasses[i].getName());
                sampledVol.setDomainType(vcGeomClasses[i].getName());
                sampledVol.setSampledValue(((ImageSubVolume) vcGeomClasses[i]).getPixelValue());
            } else {
                throw new RuntimeException("SBML SampledFieldGeometry is null.");
            }
        }
    }
    if (sbmlSFGeom != null) {
        // add sampledField to sampledFieldGeometry
        SampledField sampledField = sbmlGeometry.createSampledField();
        VCImage vcImage = vcGeometry.getGeometrySpec().getImage();
        sampledField.setId(vcImage.getName());
        sampledField.setNumSamples1(vcImage.getNumX());
        if (vcImage.getNumY() > 1) {
            sampledField.setNumSamples2(vcImage.getNumY());
        }
        if (vcImage.getNumZ() > 1) {
            sampledField.setNumSamples3(vcImage.getNumZ());
        }
        sampledField.setInterpolationType(InterpolationKind.nearestneighbor);
        sampledField.setDataType(DataKind.UINT8);
        // add image from vcGeometrySpec to sampledField.
        try {
            StringBuffer sb = new StringBuffer();
            byte[] imagePixelsBytes = vcImage.getPixelsCompressed();
            for (int i = 0; i < imagePixelsBytes.length; i++) {
                int uint8_sample = ((int) imagePixelsBytes[i]) & 0xff;
                sb.append(uint8_sample + " ");
            }
            sampledField.setSamplesLength(vcImage.getNumXYZ());
            sampledField.setSamples(sb.toString().trim());
        } catch (ImageException e) {
            e.printStackTrace(System.out);
            throw new RuntimeException("Unable to export image from VCell to SBML : " + e.getMessage());
        }
    }
}