/// <summary>
/// Processes IfcTypeObject attributes.
/// </summary>
/// <param name="ifcTypeProduct">The IfcTypeProduct handle.</param>
protected override void Process(IFCAnyHandle ifcTypeProduct)
{
base.Process(ifcTypeProduct);
Tag = IFCAnyHandleUtil.GetStringAttribute(ifcTypeProduct, "Tag");
IList <IFCAnyHandle> representationMapsHandle = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcTypeProduct, "RepresentationMaps");
if (representationMapsHandle != null && representationMapsHandle.Count > 0)
{
foreach (IFCAnyHandle representationMapHandle in representationMapsHandle)
{
IFCRepresentationMap representationMap = IFCRepresentationMap.ProcessIFCRepresentationMap(representationMapHandle);
if (representationMap != null)
{
RepresentationMaps.Add(representationMap);
// Traditionally we would create a "dummy" DirectShapeType for each IfcRepresentationMap. In the case where the IfcRepresentationMap is not used by another other IfcTypeProduct,
// we would like to stop creating the "dummy" DirectShapeType and store the geometry in the DirectShapeType associated with the IfcTypeProduct. However, IfcRepresentationMap
// does not have an INVERSE relationship to its IfcTypeProduct(s), at least in IFC2x3.
// As such, we keep track of the IfcRepresentationMaps that have the relationship described above for future correspondence.
RegisterRepresentationMapWithTypeProject(representationMap, this);
}
}
}
}
/// <summary>
/// Finds all related objects in IfcRelAssigns.
/// </summary>
/// <param name="ifcRelAssigns">The IfcRelAssigns handle.</param>
/// <returns>The related objects, or null if not found.</returns>
static public ICollection <IFCObjectDefinition> ProcessRelatedObjects(IFCAnyHandle ifcRelAssignsOrAggregates)
{
try
{
ValidateIFCRelAssignsOrAggregates(ifcRelAssignsOrAggregates);
}
catch
{
//LOG: ERROR: Couldn't find valid IfcRelAssignsToGroup for IfcGroup.
return(null);
}
HashSet <IFCAnyHandle> relatedObjects = IFCAnyHandleUtil.GetAggregateInstanceAttribute
<HashSet <IFCAnyHandle> >(ifcRelAssignsOrAggregates, "RelatedObjects");
// Receiving apps need to decide whether to post an error or not.
if (relatedObjects == null)
{
return(null);
}
ICollection <IFCObjectDefinition> relatedObjectSet = new HashSet <IFCObjectDefinition>();
foreach (IFCAnyHandle relatedObject in relatedObjects)
{
IFCObjectDefinition objectDefinition = IFCObjectDefinition.ProcessIFCObjectDefinition(relatedObject);
if (objectDefinition != null)
{
relatedObjectSet.Add(objectDefinition);
}
}
return(relatedObjectSet);
}
override protected void Process(IFCAnyHandle styledItem)
{
base.Process(styledItem);
IFCAnyHandle item = IFCImportHandleUtil.GetOptionalInstanceAttribute(styledItem, "Item");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(item))
{
Item = IFCRepresentationItem.ProcessIFCRepresentationItem(item);
}
Name = IFCImportHandleUtil.GetOptionalStringAttribute(styledItem, "Name", null);
List <IFCAnyHandle> styles = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(styledItem, "Styles");
if (styles == null || styles.Count == 0 || IFCAnyHandleUtil.IsNullOrHasNoValue(styles[0]))
{
Importer.TheLog.LogMissingRequiredAttributeError(styledItem, "Styles", true);
}
if (styles.Count > 1)
{
Importer.TheLog.LogWarning(styledItem.StepId, "Multiple presentation styles found for IfcStyledItem - using first.", false);
}
Styles = IFCPresentationStyleAssignment.ProcessIFCPresentationStyleAssignment(styles[0]);
}
/// <summary>
/// Processes IfcProject attributes.
/// </summary>
/// <param name="ifcProjectHandle">The IfcProject handle.</param>
protected override void Process(IFCAnyHandle ifcProjectHandle)
{
IFCAnyHandle unitsInContext = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcProjectHandle, "UnitsInContext", false);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(unitsInContext))
{
IList <IFCAnyHandle> units = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(unitsInContext, "Units");
if (units != null)
{
m_UnitsInContext = new HashSet <IFCUnit>();
foreach (IFCAnyHandle unit in units)
{
IFCUnit ifcUnit = IFCImportFile.TheFile.IFCUnits.ProcessIFCProjectUnit(unit);
if (!IFCUnit.IsNullOrInvalid(ifcUnit))
{
m_UnitsInContext.Add(ifcUnit);
}
}
}
else
{
Importer.TheLog.LogMissingRequiredAttributeError(unitsInContext, "Units", false);
}
}
// We need to process the units before we process the rest of the file, since we will scale values as we go along.
base.Process(ifcProjectHandle);
// process true north - take the first valid representation context that has a true north value.
HashSet <IFCAnyHandle> repContexts = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcProjectHandle, "RepresentationContexts");
if (repContexts != null)
{
foreach (IFCAnyHandle geomRepContextHandle in repContexts)
{
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(geomRepContextHandle) &&
IFCAnyHandleUtil.IsSubTypeOf(geomRepContextHandle, IFCEntityType.IfcGeometricRepresentationContext))
{
IFCAnyHandle trueNorthHandle = IFCAnyHandleUtil.GetInstanceAttribute(geomRepContextHandle, "TrueNorth");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(trueNorthHandle))
{
List <double> trueNorthDir = IFCAnyHandleUtil.GetAggregateDoubleAttribute <List <double> >(trueNorthHandle, "DirectionRatios");
if (trueNorthDir != null && trueNorthDir.Count >= 2)
{
m_TrueNorthDirection = trueNorthDir;
break;
}
}
}
}
}
// Special read of IfcPresentationLayerAssignment if the INVERSE flag isn't properly set in the EXPRESS file.
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC2x2)
{
IFCPresentationLayerAssignment.ProcessAllLayerAssignments();
}
}
private IList <IFCGridAxis> ProcessOneAxis(IFCAnyHandle ifcGrid, string axisName)
{
IList <IFCGridAxis> gridAxes = new List <IFCGridAxis>();
List <IFCAnyHandle> ifcAxes = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcGrid, axisName);
if (ifcAxes != null)
{
foreach (IFCAnyHandle axis in ifcAxes)
{
IFCGridAxis gridAxis = IFCGridAxis.ProcessIFCGridAxis(axis);
if (gridAxis != null)
{
if (gridAxis.DuplicateAxisId == -1)
{
gridAxes.Add(gridAxis);
}
else
{
IFCEntity originalEntity;
if (IFCImportFile.TheFile.EntityMap.TryGetValue(gridAxis.DuplicateAxisId, out originalEntity))
{
IFCGridAxis originalGridAxis = originalEntity as IFCGridAxis;
if (originalGridAxis != null)
{
gridAxes.Add(originalGridAxis);
}
}
}
}
}
}
return(gridAxes);
}
protected override void Process(IFCAnyHandle ifcCurve)
{
base.Process(ifcCurve);
IList <IFCAnyHandle> points = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcCurve, "Points");
int numPoints = points.Count;
if (numPoints < 2)
{
string msg = "IfcPolyLine had " + numPoints + ", expected at least 2, ignoring";
Importer.TheLog.LogError(Id, msg, false);
return;
}
IList <XYZ> pointXYZs = new List <XYZ>();
foreach (IFCAnyHandle point in points)
{
XYZ pointXYZ = IFCPoint.ProcessScaledLengthIFCCartesianPoint(point);
pointXYZs.Add(pointXYZ);
}
if (pointXYZs.Count != numPoints)
{
Importer.TheLog.LogError(Id, "Some of the IFC points cannot be converted to Revit points", true);
}
CurveLoop = IFCGeometryUtil.CreatePolyCurveLoop(pointXYZs, points, Id, false);
Curve = IFCGeometryUtil.CreateCurveFromPolyCurveLoop(CurveLoop, pointXYZs);
}
override protected void Process(IFCAnyHandle ifcPolyLoop)
{
base.Process(ifcPolyLoop);
List <IFCAnyHandle> ifcPolygon =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolyLoop, "Polygon");
if (ifcPolygon == null)
{
return; // TODO: WARN
}
Polygon = IFCPoint.ProcessScaledLengthIFCCartesianPoints(ifcPolygon);
// Check for duplicate points, including wrapping around, and remove them.
int numVertices = Polygon.Count;
for (int ii = numVertices - 1; (ii != -1) && numVertices >= 3; ii--)
{
if (MathUtil.IsAlmostEqualAbsolute(Polygon[ii], Polygon[(ii + 1) % numVertices]))
{
Importer.TheLog.LogError(ifcPolyLoop.StepId, "The polygon vertex at index " + ii + " is a duplicate, removing.", false);
Polygon.RemoveAt(ii);
numVertices--;
}
}
if (numVertices < 3)
{
// This used to throw an error. However, we found files that threw this error
// thousands of times, causing incredibly slow links. Instead, null out the
// data and log an error.
Polygon = null;
Importer.TheLog.LogError(ifcPolyLoop.StepId, "Polygon attribute has only " + numVertices + " vertices, 3 expected.", false);
}
}
/// <summary>
/// Processes IfcObjectDefinition attributes.
/// </summary>
/// <param name="ifcObjectDefinition">The IfcObjectDefinition handle.</param>
protected override void Process(IFCAnyHandle ifcObjectDefinition)
{
base.Process(ifcObjectDefinition);
ShapeType = GetShapeType(ifcObjectDefinition);
// If we aren't importing this category, skip processing.
if (!IFCCategoryUtil.CanImport(EntityType, ShapeType))
{
throw new InvalidOperationException("Don't Import");
}
// Before IFC2x3, IfcTypeObject did not have IsDecomposedBy.
HashSet <IFCAnyHandle> elemSet = null;
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC2x3 || !IFCAnyHandleUtil.IsSubTypeOf(ifcObjectDefinition, IFCEntityType.IfcTypeObject))
{
elemSet = IFCAnyHandleUtil.GetAggregateInstanceAttribute
<HashSet <IFCAnyHandle> >(ifcObjectDefinition, "IsDecomposedBy");
}
if (elemSet != null)
{
foreach (IFCAnyHandle elem in elemSet)
{
ProcessIFCRelDecomposes(elem);
}
}
HashSet <IFCAnyHandle> hasAssociations = IFCAnyHandleUtil.GetAggregateInstanceAttribute
<HashSet <IFCAnyHandle> >(ifcObjectDefinition, "HasAssociations");
if (hasAssociations != null)
{
foreach (IFCAnyHandle hasAssociation in hasAssociations)
{
if (IFCAnyHandleUtil.IsSubTypeOf(hasAssociation, IFCEntityType.IfcRelAssociatesMaterial))
{
ProcessIFCRelAssociatesMaterial(hasAssociation);
}
else
{
IFCImportFile.TheLog.LogUnhandledSubTypeError(hasAssociation, IFCEntityType.IfcRelAssociates, false);
}
}
}
// The default IFC2x3_TC1.exp file does not have this INVERSE attribute correctly set. Encapsulate this function.
ISet <IFCAnyHandle> hasAssignments = IFCImportHandleUtil.GetHasAssignments(ifcObjectDefinition);
if (hasAssignments != null)
{
foreach (IFCAnyHandle hasAssignment in hasAssignments)
{
ProcessIFCRelAssigns(hasAssignment);
}
}
IFCImportFile.TheLog.AddToElementCount();
}
override protected void Process(IFCAnyHandle ifcManifoldSolidBrep)
{
base.Process(ifcManifoldSolidBrep);
// We will not fail if the transform is not given, but instead assume it to be the identity.
IFCAnyHandle ifcOuter = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcManifoldSolidBrep, "Outer", true);
Outer = IFCClosedShell.ProcessIFCClosedShell(ifcOuter);
if (IFCAnyHandleUtil.IsSubTypeOf(ifcManifoldSolidBrep, IFCEntityType.IfcFacetedBrepWithVoids))
{
HashSet <IFCAnyHandle> ifcVoids =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcManifoldSolidBrep, "Voids");
if (ifcVoids != null)
{
foreach (IFCAnyHandle ifcVoid in ifcVoids)
{
try
{
Inners.Add(IFCClosedShell.ProcessIFCClosedShell(ifcVoid));
}
catch
{
// LOG: WARNING: #: Invalid inner shell ifcVoid.StepId, ignoring.
}
}
}
}
}
protected override void Process(IFCAnyHandle ifcMaterialConstituentSet)
{
base.Process(ifcMaterialConstituentSet);
IList <IFCAnyHandle> ifcMaterialConsitutuents =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcMaterialConstituentSet, "MaterialConstituents");
if (ifcMaterialConsitutuents == null)
{
Importer.TheLog.LogError(ifcMaterialConstituentSet.Id, "Expected at least 1 MaterialConsituent, found none.", false);
return;
}
foreach (IFCAnyHandle ifcMaterialConstituent in ifcMaterialConsitutuents)
{
IFCMaterialConstituent materialConstituent = IFCMaterialConstituent.ProcessIFCMaterialConstituent(ifcMaterialConstituent);
if (materialConstituent != null)
{
MaterialConstituents.Add(materialConstituent);
}
}
Name = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialConstituentSet, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialConstituentSet, "Description", null);
}
protected override void Process(IFCAnyHandle ifcMaterial)
{
base.Process(ifcMaterial);
Name = IFCImportHandleUtil.GetRequiredStringAttribute(ifcMaterial, "Name", true);
List <IFCAnyHandle> hasRepresentation = null;
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC2x3)
{
hasRepresentation = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcMaterial, "HasRepresentation");
}
if (hasRepresentation != null && hasRepresentation.Count == 1)
{
if (!IFCAnyHandleUtil.IsSubTypeOf(hasRepresentation[0], IFCEntityType.IfcMaterialDefinitionRepresentation))
{
Importer.TheLog.LogUnexpectedTypeError(hasRepresentation[0], IFCEntityType.IfcMaterialDefinitionRepresentation, false);
}
else
{
MaterialDefinitionRepresentation = IFCProductRepresentation.ProcessIFCProductRepresentation(hasRepresentation[0]);
}
}
Importer.TheLog.AddToElementCount();
}
/// <summary>
/// Processes IfcOpeningElement attributes.
/// </summary>
/// <param name="ifcOpeningElement">The IfcOpeningElement handle.</param>
protected override void Process(IFCAnyHandle ifcOpeningElement)
{
base.Process(ifcOpeningElement);
ICollection <IFCAnyHandle> hasFillings = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcOpeningElement, "HasFillings");
if (hasFillings != null)
{
// Assume that there is only one filling for the opening, and take first found.
foreach (IFCAnyHandle hasFilling in hasFillings)
{
IFCAnyHandle relatedFillingElement = IFCAnyHandleUtil.GetInstanceAttribute(hasFilling, "RelatedBuildingElement");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relatedFillingElement))
{
continue;
}
IFCEntity filledByElement;
IFCImportFile.TheFile.EntityMap.TryGetValue(relatedFillingElement.StepId, out filledByElement);
if (filledByElement == null)
{
FilledByElement = IFCElement.ProcessIFCElement(relatedFillingElement);
}
else
{
FilledByElement = filledByElement as IFCElement;
}
FilledByElement.FillsOpening = this;
break;
}
}
}
/// <summary>
/// Processes IfcTypeObject attributes.
/// </summary>
/// <param name="ifcTypeObject">The IfcTypeObject handle.</param>
protected override void Process(IFCAnyHandle ifcTypeObject)
{
base.Process(ifcTypeObject);
HashSet <IFCAnyHandle> propertySets = IFCAnyHandleUtil.GetAggregateInstanceAttribute
<HashSet <IFCAnyHandle> >(ifcTypeObject, "HasPropertySets");
if (propertySets != null)
{
m_IFCPropertySets = new Dictionary <string, IFCPropertySetDefinition>();
foreach (IFCAnyHandle propertySet in propertySets)
{
IFCPropertySetDefinition ifcPropertySetDefinition = IFCPropertySetDefinition.ProcessIFCPropertySetDefinition(propertySet);
if (ifcPropertySetDefinition != null)
{
string name = ifcPropertySetDefinition.Name;
if (string.IsNullOrWhiteSpace(name))
{
name = IFCAnyHandleUtil.GetEntityType(propertySet).ToString() + " " + propertySet.StepId;
}
m_IFCPropertySets[name] = ifcPropertySetDefinition;
}
}
}
}
/// <summary>
/// Processes IfcPort attributes.
/// </summary>
/// <param name="ifcPort">The IfcPort handle.</param>
protected override void Process(IFCAnyHandle ifcPort)
{
base.Process(ifcPort);
// We will delay processing the containment information to the PostProcess stp. For complicated systems, creating all of these
// during the standard Process step may result in a stack overflow.
if (IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC4))
{
HashSet <IFCAnyHandle> containedIn = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcPort, "ContainedIn");
if (containedIn != null && containedIn.Count != 0)
{
m_ContainedInHandle = containedIn.First();
}
}
else
{
m_ContainedInHandle = IFCAnyHandleUtil.GetInstanceAttribute(ifcPort, "ContainedIn");
}
HashSet <IFCAnyHandle> connectedFrom = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcPort, "ConnectedFrom");
if (connectedFrom != null && connectedFrom.Count != 0)
{
m_ConnectedFromHandle = connectedFrom.First();
}
HashSet <IFCAnyHandle> connectedTo = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcPort, "ConnectedTo");
if (connectedTo != null && connectedTo.Count != 0)
{
m_ConnectedToHandle = connectedTo.First();
}
}
override protected void Process(IFCAnyHandle ifcConnectedFaceSet)
{
base.Process(ifcConnectedFaceSet);
HashSet <IFCAnyHandle> ifcCfsFaces =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcConnectedFaceSet, "CfsFaces");
if (ifcCfsFaces == null || ifcCfsFaces.Count == 0)
{
throw new InvalidOperationException("#" + ifcConnectedFaceSet.StepId + ": no faces in connected face set, aborting.");
}
foreach (IFCAnyHandle ifcCfsFace in ifcCfsFaces)
{
try
{
Faces.Add(IFCFace.ProcessIFCFace(ifcCfsFace));
}
catch
{
Importer.TheLog.LogWarning(ifcCfsFace.StepId, "Invalid face, ignoring.", false);
}
}
if (Faces.Count == 0)
{
throw new InvalidOperationException("#" + ifcConnectedFaceSet.StepId + ": no faces, aborting.");
}
}
override protected void Process(IFCAnyHandle ifcGeometricSet)
{
base.Process(ifcGeometricSet);
IList <IFCAnyHandle> elements = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcGeometricSet, "Elements");
if (elements != null)
{
foreach (IFCAnyHandle element in elements)
{
if (IFCAnyHandleUtil.IsSubTypeOf(element, IFCEntityType.IfcCurve))
{
IFCCurve curve = IFCCurve.ProcessIFCCurve(element);
if (curve != null)
{
Curves.Add(curve);
}
}
else
{
Importer.TheLog.LogError(Id, "Unhandled entity type in IfcGeometricSet: " + IFCAnyHandleUtil.GetEntityType(element).ToString(), false);
}
}
}
}
override protected void Process(IFCAnyHandle ifcPolyLoop)
{
base.Process(ifcPolyLoop);
List <IFCAnyHandle> ifcPolygon =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolyLoop, "Polygon");
if (ifcPolygon == null)
{
return; // TODO: WARN
}
Polygon = IFCPoint.ProcessScaledLengthIFCCartesianPoints(ifcPolygon);
int numVertices = Polygon.Count;
if (numVertices > 1)
{
if (Polygon[0].IsAlmostEqualTo(Polygon[numVertices - 1]))
{
// LOG: Warning: #: First and last points are almost identical, removing extra point.
Polygon.RemoveAt(numVertices - 1);
numVertices--;
}
}
if (numVertices < 3)
{
throw new InvalidOperationException("#" + ifcPolyLoop.StepId + ": Polygon attribute has only " + numVertices + " vertices, 3 expected.");
}
}
protected override void Process(IFCAnyHandle ifcMaterialLayerSet)
{
base.Process(ifcMaterialLayerSet);
IList <IFCAnyHandle> ifcMaterialLayers =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcMaterialLayerSet, "MaterialLayers");
if (ifcMaterialLayers == null)
{
Importer.TheLog.LogError(ifcMaterialLayerSet.Id, "Expected at least 1 IfcMaterialLayer, found none.", false);
return;
}
foreach (IFCAnyHandle ifcMaterialLayer in ifcMaterialLayers)
{
IFCMaterialLayer materialLayer = null;
if (materialLayer is IFCMaterialLayerWithOffsets)
{
materialLayer = IFCMaterialLayerWithOffsets.ProcessIFCMaterialLayerWithOffsets(ifcMaterialLayer);
}
else
{
materialLayer = IFCMaterialLayer.ProcessIFCMaterialLayer(ifcMaterialLayer);
}
if (materialLayer != null)
{
MaterialLayers.Add(materialLayer);
}
}
LayerSetName = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialLayerSet, "LayerSetName", null);
}
override protected void Process(IFCAnyHandle ifcPolyLoop)
{
base.Process(ifcPolyLoop);
List <IFCAnyHandle> ifcPolygon =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolyLoop, "Polygon");
if (ifcPolygon == null)
{
return; // TODO: WARN
}
Polygon = IFCPoint.ProcessScaledLengthIFCCartesianPoints(ifcPolygon);
int numVertices = Polygon.Count;
if (numVertices > 1)
{
if (MathUtil.IsAlmostEqualAbsolute(Polygon[0], Polygon[numVertices - 1]))
{
// LOG: Warning: #: First and last points are almost identical, removing extra point.
Polygon.RemoveAt(numVertices - 1);
numVertices--;
}
}
if (numVertices < 3)
{
// This used to throw an error. However, we found files that threw this error
// thousands of times, causing incredibly slow links. Instead, null out the
// data and log an error.
Polygon = null;
Importer.TheLog.LogError(ifcPolyLoop.StepId, "Polygon attribute has only " + numVertices + " vertices, 3 expected.", false);
}
}
/// <summary>
/// Processes IfcElement attributes.
/// </summary>
/// <param name="ifcElement">The IfcElement handle.</param>
protected override void Process(IFCAnyHandle ifcElement)
{
base.Process(ifcElement);
m_Tag = IFCAnyHandleUtil.GetStringAttribute(ifcElement, "Tag");
ICollection <IFCAnyHandle> hasOpenings = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcElement, "HasOpenings");
if (hasOpenings != null)
{
foreach (IFCAnyHandle hasOpening in hasOpenings)
{
IFCAnyHandle relatedOpeningElement = IFCAnyHandleUtil.GetInstanceAttribute(hasOpening, "RelatedOpeningElement");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relatedOpeningElement))
{
continue;
}
IFCFeatureElementSubtraction opening = IFCFeatureElementSubtraction.ProcessIFCFeatureElementSubtraction(relatedOpeningElement);
if (opening != null)
{
opening.VoidsElement = this;
Openings.Add(opening);
}
}
}
}
protected override void Process(IFCAnyHandle ifcPolygonalFaceSet)
{
base.Process(ifcPolygonalFaceSet);
bool?closed = IFCAnyHandleUtil.GetBooleanAttribute(ifcPolygonalFaceSet, "Closed");
if (closed != null)
{
Closed = closed;
}
IList <IFCAnyHandle> facesHnds = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcPolygonalFaceSet, "Faces");
if (facesHnds != null)
{
if (facesHnds.Count > 0)
{
Faces = new List <IFCIndexedPolygonalFace>();
}
foreach (IFCAnyHandle facesHnd in facesHnds)
{
Faces.Add(IFCIndexedPolygonalFace.ProcessIFCIndexedPolygonalFace(facesHnd));
}
}
}
override protected void Process(IFCAnyHandle item)
{
base.Process(item);
IList <IFCAnyHandle> layerStyles = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(item, "LayerStyles");
foreach (IFCAnyHandle layerStyle in layerStyles)
{
if (layerStyle == null)
{
Importer.TheLog.LogNullError(IFCEntityType.IfcPresentationStyle);
continue;
}
IFCPresentationStyle presentationStyle = IFCPresentationStyle.ProcessIFCPresentationStyle(layerStyle);
if (presentationStyle != null)
{
LayerStyles.Add(presentationStyle);
}
else
{
Importer.TheLog.LogUnhandledSubTypeError(layerStyle, "IfcPresentationStyle", false);
}
}
}
/// <summary>
/// Processes IfcSpatialStructureElement attributes.
/// </summary>
/// <param name="ifcSpatialStructureElement">The IfcSpatialStructureElement handle.</param>
protected override void Process(IFCAnyHandle ifcSpatialStructureElement)
{
base.Process(ifcSpatialStructureElement);
LongName = IFCImportHandleUtil.GetOptionalStringAttribute(ifcSpatialStructureElement, "LongName", null);
HashSet <IFCAnyHandle> elemSet =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcSpatialStructureElement, "ContainsElements");
if (elemSet != null)
{
if (m_IFCProducts == null)
{
m_IFCProducts = new HashSet <IFCProduct>();
}
foreach (IFCAnyHandle elem in elemSet)
{
ProcessIFCRelContainedInSpatialStructure(elem);
}
}
if (IFCImportFile.TheFile.SchemaVersion > IFCSchemaVersion.IFC2x || IFCAnyHandleUtil.IsSubTypeOf(ifcSpatialStructureElement, IFCEntityType.IfcBuilding))
{
HashSet <IFCAnyHandle> systemSet =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcSpatialStructureElement, "ServicedBySystems");
if (systemSet != null)
{
foreach (IFCAnyHandle system in systemSet)
{
ProcessIFCRelServicesBuildings(system);
}
}
}
}
override protected void Process(IFCAnyHandle ifcFace)
{
if (IFCAnyHandleUtil.IsSubTypeOf(ifcFace, IFCEntityType.IfcFaceSurface))
{
// Only allow IfcFaceSurface is the surface is a plane.
IFCAnyHandle faceSurface = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcFace, "FaceSurface", false);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(faceSurface))
{
IFCSurface surface = IFCSurface.ProcessIFCSurface(faceSurface);
if (!(surface is IFCPlane))
{
IFCImportFile.TheLog.LogError(ifcFace.StepId,
"cannot handle IfcFaceSurface with FaceSurface of type " + IFCAnyHandleUtil.GetEntityType(faceSurface).ToString(), true);
}
}
}
base.Process(ifcFace);
HashSet <IFCAnyHandle> ifcBounds =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcFace, "Bounds");
if (ifcBounds == null || ifcBounds.Count == 0)
{
throw new InvalidOperationException("#" + ifcFace.StepId + ": no face boundaries, aborting.");
}
foreach (IFCAnyHandle ifcBound in ifcBounds)
{
try
{
Bounds.Add(IFCFaceBound.ProcessIFCFaceBound(ifcBound));
}
catch
{
// LOG: WARNING: #: Invalid face boundary ifcBound.StepId, ignoring.
}
}
if (Bounds.Count == 0)
{
throw new InvalidOperationException("#" + ifcFace.StepId + ": no face boundaries, aborting.");
}
// Give warning if too many outer bounds. We won't care how they are designated, regardless.
bool hasOuter = false;
foreach (IFCFaceBound faceBound in Bounds)
{
if (faceBound.IsOuter)
{
if (hasOuter)
{
// LOG: WARNING: #: Too many outer boundary loops for IfcFace.
break;
}
hasOuter = true;
}
}
}
/// <summary>
/// Finds contained elements.
/// </summary>
/// <param name="ifcRelHandle">The relation handle.</param>
void ProcessIFCRelContainedInSpatialStructure(IFCAnyHandle ifcRelHandle)
{
HashSet <IFCAnyHandle> elemSet = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcRelHandle, "RelatedElements");
if (elemSet == null)
{
Importer.TheLog.LogMissingRequiredAttributeError(ifcRelHandle, "RelatedElements", false);
return;
}
foreach (IFCAnyHandle elem in elemSet)
{
try
{
IFCProduct product = IFCProduct.ProcessIFCProduct(elem);
if (product != null)
{
product.ContainingStructure = this;
m_IFCProducts.Add(product);
}
}
catch (Exception ex)
{
Importer.TheLog.LogError(elem.StepId, ex.Message, false);
}
}
}
/// <summary>
/// Processes an IFC element quantity.
/// </summary>
/// <param name="ifcElementQuantity">The IfcElementQuantity object.</param>
protected override void Process(IFCAnyHandle ifcElementQuantity)
{
base.Process(ifcElementQuantity);
MethodOfMeasurement = IFCImportHandleUtil.GetOptionalStringAttribute(ifcElementQuantity, "MethodOfMeasurement", null);
HashSet <IFCAnyHandle> quantities =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcElementQuantity, "Quantities");
if (quantities != null)
{
m_IFCQuantities = new Dictionary <string, IFCPhysicalQuantity>();
foreach (IFCAnyHandle quantity in quantities)
{
IFCPhysicalQuantity ifcPhysicalQuantity = IFCPhysicalQuantity.ProcessIFCPhysicalQuantity(quantity);
if (ifcPhysicalQuantity != null)
{
m_IFCQuantities[ifcPhysicalQuantity.Name] = ifcPhysicalQuantity;
}
}
}
else
{
Importer.TheLog.LogMissingRequiredAttributeError(ifcElementQuantity, "Quantities", false);
}
}
/// <summary>
/// Processes IfcObject attributes.
/// </summary>
/// <param name="ifcObject">The IfcObject handle.</param>
protected override void Process(IFCAnyHandle ifcObject)
{
base.Process(ifcObject);
m_ObjectType = IFCAnyHandleUtil.GetStringAttribute(ifcObject, "ObjectType");
HashSet <IFCAnyHandle> isDefinedByHandles = IFCAnyHandleUtil.GetAggregateInstanceAttribute
<HashSet <IFCAnyHandle> >(ifcObject, "IsDefinedBy");
if (isDefinedByHandles != null)
{
IFCPropertySetDefinition.ResetCounters();
foreach (IFCAnyHandle isDefinedByHandle in isDefinedByHandles)
{
if (IFCAnyHandleUtil.IsSubTypeOf(isDefinedByHandle, IFCEntityType.IfcRelDefinesByProperties))
{
ProcessIFCRelDefinesByProperties(isDefinedByHandle);
}
else if (IFCAnyHandleUtil.IsSubTypeOf(isDefinedByHandle, IFCEntityType.IfcRelDefinesByType))
{
ProcessIFCRelDefinesByType(isDefinedByHandle);
}
else
{
IFCImportFile.TheLog.LogUnhandledSubTypeError(isDefinedByHandle, IFCEntityType.IfcRelDefines, false);
}
}
}
}
private void ProcessIFCCompositeCurve(IFCAnyHandle ifcCurve)
{
IList <IFCAnyHandle> segments = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcCurve, "Segments");
foreach (IFCAnyHandle segment in segments)
{
ProcessIFCCompositeCurveSegment(segment);
}
}
/// <summary>
/// Adds items to a given shape handle.
/// </summary>
/// <param name="shape">The shape handle.</param>
/// <param name="items">The items.</param>
public static void AddItemsToShape(IFCAnyHandle shape, ICollection <IFCAnyHandle> items)
{
HashSet <IFCAnyHandle> repItemSet = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(shape, "Items");
foreach (IFCAnyHandle repItem in items)
{
repItemSet.Add(repItem);
}
IFCAnyHandleUtil.SetAttribute(shape, "Items", repItemSet);
}
/// <summary>
/// Processes IfcElement attributes.
/// </summary>
/// <param name="ifcElement">The IfcElement handle.</param>
protected override void Process(IFCAnyHandle ifcElement)
{
base.Process(ifcElement);
m_Tag = IFCAnyHandleUtil.GetStringAttribute(ifcElement, "Tag");
ICollection <IFCAnyHandle> hasOpenings = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcElement, "HasOpenings");
if (hasOpenings != null)
{
foreach (IFCAnyHandle hasOpening in hasOpenings)
{
IFCAnyHandle relatedOpeningElement = IFCAnyHandleUtil.GetInstanceAttribute(hasOpening, "RelatedOpeningElement");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relatedOpeningElement))
{
continue;
}
IFCFeatureElementSubtraction opening = IFCFeatureElementSubtraction.ProcessIFCFeatureElementSubtraction(relatedOpeningElement);
if (opening != null)
{
opening.VoidsElement = this;
Openings.Add(opening);
}
}
}
// "HasPorts" is new to IFC2x2.
// For IFC4, "HasPorts" has moved to IfcDistributionElement. We'll keep the check here, but we will only check it
// if we are exporting before IFC4 or if we have an IfcDistributionElement handle.
bool checkPorts = (IFCImportFile.TheFile.SchemaVersion > IFCSchemaVersion.IFC2x2) &&
(IFCImportFile.TheFile.SchemaVersion < IFCSchemaVersion.IFC4 || IFCAnyHandleUtil.IsSubTypeOf(ifcElement, IFCEntityType.IfcDistributionElement));
if (checkPorts)
{
ICollection <IFCAnyHandle> hasPorts = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcElement, "HasPorts");
if (hasPorts != null)
{
foreach (IFCAnyHandle hasPort in hasPorts)
{
IFCAnyHandle relatingPort = IFCAnyHandleUtil.GetInstanceAttribute(hasPort, "RelatingPort");
if (IFCAnyHandleUtil.IsNullOrHasNoValue(relatingPort))
{
continue;
}
IFCPort port = IFCPort.ProcessIFCPort(relatingPort);
if (port != null)
{
Ports.Add(port);
}
}
}
}
}
