/// <summary>
/// Does a top-level check to see if this styled item may be equivalent to another styled item.
/// </summary>
/// <param name="otherEntity">The other styled item.</param>
/// <returns>False if they don't have the same handles, null otherwise.</returns>
public override bool?MaybeEquivalentTo(IFCEntity otherEntity)
{
bool?maybeEquivalentTo = base.MaybeEquivalentTo(otherEntity);
if (maybeEquivalentTo.HasValue)
{
return(maybeEquivalentTo.Value);
}
if (!(otherEntity is IFCStyledItem))
{
return(false);
}
IFCStyledItem other = otherEntity as IFCStyledItem;
if (!IFCRoot.Equals(Item, other.Item))
{
return(false);
}
if (!IFCRoot.Equals(Styles, other.Styles))
{
return(false);
}
return(null);
}
/// <summary>
/// Does a top-level check to see if this styled item may be equivalent to another styled item.
/// </summary>
/// <param name="otherEntity">The other styled item.</param>
/// <returns>False if they don't have the same handles, null otherwise.</returns>
public override bool?MaybeEquivalentTo(IFCEntity otherEntity)
{
bool?maybeEquivalentTo = base.MaybeEquivalentTo(otherEntity);
if (maybeEquivalentTo.HasValue)
{
return(maybeEquivalentTo.Value);
}
if (!(otherEntity is IFCStyledItem))
{
return(false);
}
IFCStyledItem other = otherEntity as IFCStyledItem;
if (!Equals(Item, other.Item))
{
return(false);
}
IList <IFCPresentationStyle> otherStyles = other.Styles;
if (Styles == null && otherStyles == null)
{
return(null);
}
// If only one is null, they are not equal.
if (Styles == null || otherStyles == null)
{
return(false);
}
int thisCount = Styles.Count;
int otherCount = otherStyles.Count;
if (thisCount != otherCount)
{
return(false);
}
// This could miss the case where the styles are the same but in different
// orders. At the moment, that would just lead to a spurious warning.
for (int ii = 0; ii < thisCount; ii++)
{
if (!Equals(Styles[ii], otherStyles[ii]))
{
return(false);
}
}
return(null);
}
/// <summary>
/// Processes an IfcRepresentationItem entity handle.
/// </summary>
/// <param name="ifcRepresentationItem">The IfcRepresentationItem handle.</param>
/// <returns>The IFCRepresentationItem object.</returns>
public static IFCRepresentationItem ProcessIFCRepresentationItem(IFCAnyHandle ifcRepresentationItem)
{
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcBooleanResult))
{
return(IFCBooleanResult.ProcessIFCBooleanResult(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcCurve))
{
return(IFCCurve.ProcessIFCCurve(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcFaceBasedSurfaceModel))
{
return(IFCFaceBasedSurfaceModel.ProcessIFCFaceBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcGeometricSet))
{
return(IFCGeometricSet.ProcessIFCGeometricSet(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcMappedItem))
{
return(IFCMappedItem.ProcessIFCMappedItem(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcShellBasedSurfaceModel))
{
return(IFCShellBasedSurfaceModel.ProcessIFCShellBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcSolidModel))
{
return(IFCSolidModel.ProcessIFCSolidModel(ifcRepresentationItem));
}
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC2x2 && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcStyledItem))
{
return(IFCStyledItem.ProcessIFCStyledItem(ifcRepresentationItem));
}
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC4 && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcTriangulatedFaceSet))
{
return(IFCTriangulatedFaceSet.ProcessIFCTriangulatedFaceSet(ifcRepresentationItem));
}
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC4Add2 && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcPolygonalFaceSet))
{
return(IFCPolygonalFaceSet.ProcessIFCPolygonalFaceSet(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcTopologicalRepresentationItem))
{
return(IFCTopologicalRepresentationItem.ProcessIFCTopologicalRepresentationItem(ifcRepresentationItem));
}
Importer.TheLog.LogUnhandledSubTypeError(ifcRepresentationItem, IFCEntityType.IfcRepresentationItem, true);
return(null);
}
/// <summary>
/// Processes an IfcStyledItem entity handle.
/// </summary>
/// <param name="ifcStyledItem">The IfcStyledItem handle.</param>
/// <returns>The IFCStyledItem object.</returns>
public static IFCStyledItem ProcessIFCStyledItem(IFCAnyHandle ifcStyledItem)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcStyledItem))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcStyledItem);
return(null);
}
IFCEntity styledItem;
if (!IFCImportFile.TheFile.EntityMap.TryGetValue(ifcStyledItem.StepId, out styledItem))
{
styledItem = new IFCStyledItem(ifcStyledItem);
}
return(styledItem as IFCStyledItem);
}
/// <summary>
/// Gets the IFCSurfaceStyle, if available, for an associated material.
/// TODO: Make this generic, add warnings.
/// </summary>
/// <returns>The IFCSurfaceStyle.</returns>
public IFCSurfaceStyle GetSurfaceStyle()
{
IList <IFCRepresentation> representations = Representations;
if (representations != null && representations.Count > 0)
{
IFCRepresentation representation = representations[0];
IList <IFCRepresentationItem> representationItems = representation.RepresentationItems;
if (representationItems != null && representationItems.Count > 0 && (representationItems[0] is IFCStyledItem))
{
IFCStyledItem styledItem = representationItems[0] as IFCStyledItem;
return(styledItem.GetSurfaceStyle());
}
}
return(null);
}
override protected void Process(IFCAnyHandle item)
{
base.Process(item);
LayerAssignment = IFCPresentationLayerAssignment.GetTheLayerAssignment(item);
// IFC2x has a different representation for styled items which we don't support.
ICollection <IFCAnyHandle> styledByItems = null;
if (Importer.TheCache.StyledByItems.TryGetValue(item, out styledByItems))
{
if (styledByItems != null && styledByItems.Count > 0)
{
// We can only handle one styled item, but we allow the possiblity that there are duplicates. Do a top-level check.
foreach (IFCAnyHandle styledByItem in styledByItems)
{
if (!IFCAnyHandleUtil.IsSubTypeOf(styledByItem, IFCEntityType.IfcStyledItem))
{
Importer.TheLog.LogUnexpectedTypeError(styledByItem, IFCEntityType.IfcStyledItem, false);
StyledByItem = null;
break;
}
else
{
if (StyledByItem == null)
{
StyledByItem = IFCStyledItem.ProcessIFCStyledItem(styledByItem);
}
else
{
IFCStyledItem compStyledByItem = IFCStyledItem.ProcessIFCStyledItem(styledByItem);
if (!StyledByItem.IsEquivalentTo(compStyledByItem))
{
Importer.TheLog.LogWarning(Id, "Multiple inconsistent styled items found for this item; using first one.", false);
break;
}
}
}
}
}
}
}
/// <summary>
/// Processes an IfcRepresentationItem entity handle.
/// </summary>
/// <param name="ifcRepresentationItem">The IfcRepresentationItem handle.</param>
/// <returns>The IFCRepresentationItem object.</returns>
public static IFCRepresentationItem ProcessIFCRepresentationItem(IFCAnyHandle ifcRepresentationItem)
{
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcBooleanResult))
{
return(IFCBooleanResult.ProcessIFCBooleanResult(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcConnectedFaceSet))
{
return(IFCConnectedFaceSet.ProcessIFCConnectedFaceSet(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcCurve))
{
return(IFCCurve.ProcessIFCCurve(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcFaceBasedSurfaceModel))
{
return(IFCFaceBasedSurfaceModel.ProcessIFCFaceBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcGeometricSet))
{
return(IFCGeometricSet.ProcessIFCGeometricSet(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcMappedItem))
{
return(IFCMappedItem.ProcessIFCMappedItem(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcShellBasedSurfaceModel))
{
return(IFCShellBasedSurfaceModel.ProcessIFCShellBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcSolidModel))
{
return(IFCSolidModel.ProcessIFCSolidModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcStyledItem))
{
return(IFCStyledItem.ProcessIFCStyledItem(ifcRepresentationItem));
}
IFCImportFile.TheLog.LogUnhandledSubTypeError(ifcRepresentationItem, IFCEntityType.IfcRepresentationItem, true);
return(null);
}
override protected void Process(IFCAnyHandle item)
{
base.Process(item);
LayerAssignment = IFCPresentationLayerAssignment.GetTheLayerAssignment(item, false);
List <IFCAnyHandle> styledByItems = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(item, "StyledByItem");
if (styledByItems != null && styledByItems.Count > 0)
{
// We can only handle one styled item, but we allow the possiblity that there are duplicates. Do a top-level check.
foreach (IFCAnyHandle styledByItem in styledByItems)
{
if (!IFCAnyHandleUtil.IsSubTypeOf(styledByItem, IFCEntityType.IfcStyledItem))
{
Importer.TheLog.LogUnexpectedTypeError(styledByItem, IFCEntityType.IfcStyledItem, false);
StyledByItem = null;
break;
}
else
{
if (StyledByItem == null)
{
StyledByItem = IFCStyledItem.ProcessIFCStyledItem(styledByItem);
}
else
{
IFCStyledItem compStyledByItem = IFCStyledItem.ProcessIFCStyledItem(styledByItem);
if (!StyledByItem.IsEquivalentTo(compStyledByItem))
{
Importer.TheLog.LogWarning(Id, "Multiple inconsistent styled items found for this item; using first one.", false);
break;
}
}
}
}
}
}
/// <summary>
/// Return geometry for a particular representation item.
/// </summary>
/// <param name="shapeEditScope">The geometry creation scope.</param>
/// <param name="lcs">Local coordinate system for the geometry, without scale.</param>
/// <param name="scaledLcs">Local coordinate system for the geometry, including scale, potentially non-uniform.</param>
/// <param name="guid">The guid of an element for which represntation is being created.</param>
/// <returns>The created geometry.</returns>
public IList <GeometryObject> CreateGeometry(
IFCImportShapeEditScope shapeEditScope, Transform lcs, Transform scaledLcs, string guid)
{
IList <GeometryObject> firstSolids = FirstOperand.CreateGeometry(shapeEditScope, lcs, scaledLcs, guid);
if (firstSolids != null)
{
foreach (GeometryObject potentialSolid in firstSolids)
{
if (!(potentialSolid is Solid))
{
Importer.TheLog.LogError((FirstOperand as IFCRepresentationItem).Id, "Can't perform Boolean operation on a Mesh.", false);
return(firstSolids);
}
}
}
IList <GeometryObject> secondSolids = null;
if (SecondOperand != null)
{
try
{
using (IFCImportShapeEditScope.BuildPreferenceSetter setter =
new IFCImportShapeEditScope.BuildPreferenceSetter(shapeEditScope, IFCImportShapeEditScope.BuildPreferenceType.ForceSolid))
{
// Before we process the second operand, we are going to see if there is a uniform material set for the first operand
// (corresponding to the solid in the Boolean operation). We will try to suggest the same material for the voids to avoid arbitrary
// setting of material information for the cut faces.
IFCStyledItem firstOperandStyledItem = GetStyledItemFromOperand(FirstOperand as IFCRepresentationItem);
using (IFCImportShapeEditScope.IFCMaterialStack stack =
new IFCImportShapeEditScope.IFCMaterialStack(shapeEditScope, firstOperandStyledItem, null))
{
secondSolids = SecondOperand.CreateGeometry(shapeEditScope, lcs, scaledLcs, guid);
}
}
}
catch (Exception ex)
{
// We will allow something to be imported, in the case where the second operand is invalid.
// If the first (base) operand is invalid, we will still fail the import of this solid.
if (SecondOperand is IFCRepresentationItem)
{
Importer.TheLog.LogError((SecondOperand as IFCRepresentationItem).Id, ex.Message, false);
}
else
{
throw ex;
}
secondSolids = null;
}
}
IList <GeometryObject> resultSolids = null;
if (firstSolids == null)
{
resultSolids = secondSolids;
}
else if (secondSolids == null || BooleanOperator == null)
{
if (BooleanOperator == null)
{
Importer.TheLog.LogError(Id, "Invalid BooleanOperationsType.", false);
}
resultSolids = firstSolids;
}
else
{
BooleanOperationsType booleanOperationsType = BooleanOperationsType.Difference;
switch (BooleanOperator)
{
case IFCBooleanOperator.Difference:
booleanOperationsType = BooleanOperationsType.Difference;
break;
case IFCBooleanOperator.Intersection:
booleanOperationsType = BooleanOperationsType.Intersect;
break;
case IFCBooleanOperator.Union:
booleanOperationsType = BooleanOperationsType.Union;
break;
default:
Importer.TheLog.LogError(Id, "Invalid BooleanOperationsType.", true);
break;
}
resultSolids = new List <GeometryObject>();
foreach (GeometryObject firstSolid in firstSolids)
{
Solid resultSolid = (firstSolid as Solid);
int secondId = (SecondOperand == null) ? -1 : (SecondOperand as IFCRepresentationItem).Id;
XYZ suggestedShiftDirection = (SecondOperand == null) ? null : SecondOperand.GetSuggestedShiftDirection(lcs);
foreach (GeometryObject secondSolid in secondSolids)
{
resultSolid = IFCGeometryUtil.ExecuteSafeBooleanOperation(Id, secondId, resultSolid, secondSolid as Solid, booleanOperationsType, suggestedShiftDirection);
if (resultSolid == null)
{
break;
}
}
if (resultSolid != null)
{
resultSolids.Add(resultSolid);
}
}
}
return(resultSolids);
}
/// <summary>
/// Processes an IfcRepresentationItem entity handle.
/// </summary>
/// <param name="ifcRepresentationItem">The IfcRepresentationItem handle.</param>
/// <returns>The IFCRepresentationItem object.</returns>
public static IFCRepresentationItem ProcessIFCRepresentationItem(IFCAnyHandle ifcRepresentationItem)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcRepresentationItem))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcRepresentationItem);
return(null);
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcBooleanResult))
{
return(IFCBooleanResult.ProcessIFCBooleanResult(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcCurve))
{
return(IFCCurve.ProcessIFCCurve(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcFaceBasedSurfaceModel))
{
return(IFCFaceBasedSurfaceModel.ProcessIFCFaceBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcGeometricSet))
{
return(IFCGeometricSet.ProcessIFCGeometricSet(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcMappedItem))
{
return(IFCMappedItem.ProcessIFCMappedItem(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcShellBasedSurfaceModel))
{
return(IFCShellBasedSurfaceModel.ProcessIFCShellBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcSolidModel))
{
return(IFCSolidModel.ProcessIFCSolidModel(ifcRepresentationItem));
}
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC2x2 && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcStyledItem))
{
return(IFCStyledItem.ProcessIFCStyledItem(ifcRepresentationItem));
}
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC4 && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcTriangulatedFaceSet))
{
return(IFCTriangulatedFaceSet.ProcessIFCTriangulatedFaceSet(ifcRepresentationItem));
}
// There is no way to actually determine an IFC4Add2 file vs. a "vanilla" IFC4 file, which is
// obsolete. The try/catch here allows us to read these obsolete files without crashing.
try
{
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC4 && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcPolygonalFaceSet))
{
return(IFCPolygonalFaceSet.ProcessIFCPolygonalFaceSet(ifcRepresentationItem));
}
}
catch
{
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcTopologicalRepresentationItem))
{
return(IFCTopologicalRepresentationItem.ProcessIFCTopologicalRepresentationItem(ifcRepresentationItem));
}
Importer.TheLog.LogUnhandledSubTypeError(ifcRepresentationItem, IFCEntityType.IfcRepresentationItem, true);
return(null);
}
/// <summary>
/// Processes an IfcRepresentationItem entity handle.
/// </summary>
/// <param name="ifcRepresentationItem">The IfcRepresentationItem handle.</param>
/// <returns>The IFCRepresentationItem object.</returns>
public static IFCRepresentationItem ProcessIFCRepresentationItem(IFCAnyHandle ifcRepresentationItem)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcRepresentationItem))
{
Importer.TheLog.LogNullError(IFCEntityType.IfcRepresentationItem);
return(null);
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcMappedItem))
{
return(IFCMappedItem.ProcessIFCMappedItem(ifcRepresentationItem));
}
if (IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC2x2) && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcStyledItem))
{
return(IFCStyledItem.ProcessIFCStyledItem(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcTopologicalRepresentationItem))
{
return(IFCTopologicalRepresentationItem.ProcessIFCTopologicalRepresentationItem(ifcRepresentationItem));
}
// TODO: Move everything below to IFCGeometricRepresentationItem, once it is created.
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcBooleanResult))
{
return(IFCBooleanResult.ProcessIFCBooleanResult(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcCurve))
{
return(IFCCurve.ProcessIFCCurve(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcFaceBasedSurfaceModel))
{
return(IFCFaceBasedSurfaceModel.ProcessIFCFaceBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcGeometricSet))
{
return(IFCGeometricSet.ProcessIFCGeometricSet(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcPoint))
{
return(IFCPoint.ProcessIFCPoint(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcShellBasedSurfaceModel))
{
return(IFCShellBasedSurfaceModel.ProcessIFCShellBasedSurfaceModel(ifcRepresentationItem));
}
if (IFCAnyHandleUtil.IsValidSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcSolidModel))
{
return(IFCSolidModel.ProcessIFCSolidModel(ifcRepresentationItem));
}
// TODO: Move the items below to IFCGeometricRepresentationItem->IFCTessellatedItem->IfcTessellatedFaceSet.
if (IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC4Obsolete) && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcTriangulatedFaceSet))
{
return(IFCTriangulatedFaceSet.ProcessIFCTriangulatedFaceSet(ifcRepresentationItem));
}
// There is no way to actually determine an IFC4Add2 file vs. a "vanilla" IFC4 file, which is
// obsolete. The try/catch here allows us to read these obsolete files without crashing.
try
{
if (IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC4) && IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationItem, IFCEntityType.IfcPolygonalFaceSet))
{
return(IFCPolygonalFaceSet.ProcessIFCPolygonalFaceSet(ifcRepresentationItem));
}
}
catch (Exception ex)
{
// Once we fail once, downgrade the schema so we don't try again.
if (IFCImportFile.HasUndefinedAttribute(ex))
{
IFCImportFile.TheFile.DowngradeIFC4SchemaTo(IFCSchemaVersion.IFC4Add1Obsolete);
}
else
{
throw ex;
}
}
Importer.TheLog.LogUnhandledSubTypeError(ifcRepresentationItem, IFCEntityType.IfcRepresentationItem, true);
return(null);
}
/// <summary>
/// The constructor.
/// </summary>
/// <param name="scope">The associated shape edit scope.</param>
/// <param name="item">The current styled item.</param>
public IFCMaterialStack(IFCImportShapeEditScope scope, IFCStyledItem styledItem, IFCPresentationLayerAssignment layerAssignment)
{
m_Scope = scope;
if (styledItem != null)
m_MaterialElementId = styledItem.GetMaterialElementId(scope);
else if (layerAssignment != null)
m_MaterialElementId = layerAssignment.GetMaterialElementId(scope);
if (m_MaterialElementId != ElementId.InvalidElementId)
m_Scope.PushMaterialId(m_MaterialElementId);
}
/// <summary>
/// Processes an IfcStyledItem entity handle.
/// </summary>
/// <param name="ifcStyledItem">The IfcStyledItem handle.</param>
/// <returns>The IFCStyledItem object.</returns>
public static IFCStyledItem ProcessIFCStyledItem(IFCAnyHandle ifcStyledItem)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(ifcStyledItem))
{
IFCImportFile.TheLog.LogNullError(IFCEntityType.IfcStyledItem);
return null;
}
IFCEntity styledItem;
if (!IFCImportFile.TheFile.EntityMap.TryGetValue(ifcStyledItem.StepId, out styledItem))
styledItem = new IFCStyledItem(ifcStyledItem);
return (styledItem as IFCStyledItem);
}