/// <summary>
/// Processes an IfcWindowPanelProperties entity.
/// </summary>
/// <param name="ifcWindowPanelProperties">The IfcWindowPanelProperties handle.</param>
protected override void Process(IFCAnyHandle ifcWindowPanelProperties)
{
base.Process(ifcWindowPanelProperties);
string currPropertyValueString = IFCImportHandleUtil.GetOptionalStringAttribute(ifcWindowPanelProperties, "OperationType", null);
if (!string.IsNullOrEmpty(currPropertyValueString))
{
StringProperties[GeneratePropertyName("OperationType")] = currPropertyValueString;
}
currPropertyValueString = IFCImportHandleUtil.GetOptionalStringAttribute(ifcWindowPanelProperties, "PanelPosition", null);
if (!string.IsNullOrEmpty(currPropertyValueString))
{
StringProperties[GeneratePropertyName("PanelPosition")] = currPropertyValueString;
}
double currPropertyValue = IFCImportHandleUtil.GetOptionalScaledLengthAttribute(ifcWindowPanelProperties, "FrameDepth", -1e+30);
if (!MathUtil.IsAlmostEqual(currPropertyValue, -1e+30))
{
DoubleProperties[new Tuple <string, UnitType, AllowedValues>(GeneratePropertyName("FrameDepth"),
UnitType.UT_Length, AllowedValues.Positive)] = currPropertyValue;
}
currPropertyValue = IFCImportHandleUtil.GetOptionalScaledLengthAttribute(ifcWindowPanelProperties, "FrameThickness", -1e+30);
if (!MathUtil.IsAlmostEqual(currPropertyValue, -1e+30))
{
DoubleProperties[new Tuple <string, UnitType, AllowedValues>(GeneratePropertyName("FrameThickness"),
UnitType.UT_Length, AllowedValues.Positive)] = currPropertyValue;
}
}
/// <summary>
/// Processes IfcRepresentationContext attributes.
/// </summary>
/// <param name="ifcRepresentationContext">The IfcRepresentationContext handle.</param>
override protected void Process(IFCAnyHandle ifcRepresentationContext)
{
base.Process(ifcRepresentationContext);
Identifier = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentationContext, "ContextIdentifier", null);
Type = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentationContext, "ContextType", null);
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationContext, IFCEntityType.IfcGeometricRepresentationContext))
{
bool found = false;
CoordinateSpaceDimension = IFCImportHandleUtil.GetRequiredIntegerAttribute(ifcRepresentationContext, "CoordinateSpaceDimension", out found);
if (!found)
{
CoordinateSpaceDimension = 3; // Don't throw, just set to default 3D.
}
Precision = IFCImportHandleUtil.GetOptionalScaledLengthAttribute(ifcRepresentationContext, "Precision", IFCImportFile.TheFile.Document.Application.VertexTolerance);
IFCAnyHandle worldCoordinateSystem = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcRepresentationContext, "WorldCoordinateSystem", false);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(worldCoordinateSystem))
{
WorldCoordinateSystem = IFCLocation.ProcessIFCAxis2Placement(worldCoordinateSystem);
}
else
{
WorldCoordinateSystem = Transform.Identity;
}
// For IfcGeometricRepresentationSubContext, it seems as if
try
{
IFCAnyHandle trueNorth = IFCImportHandleUtil.GetOptionalInstanceAttribute(ifcRepresentationContext, "TrueNorth");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(trueNorth))
{
TrueNorth = IFCPoint.ProcessNormalizedIFCDirection(trueNorth);
}
else
{
TrueNorth = XYZ.BasisZ;
}
}
catch
{
TrueNorth = XYZ.BasisZ;
}
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationContext, IFCEntityType.IfcGeometricRepresentationSubContext))
{
IFCAnyHandle parentContext = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcRepresentationContext, "ParentContext", true);
ParentContext = IFCRepresentationContext.ProcessIFCRepresentationContext(parentContext);
TargetScale = IFCImportHandleUtil.GetOptionalPositiveRatioAttribute(ifcRepresentationContext, "TargetScale", 1.0);
TargetView = IFCEnums.GetSafeEnumerationAttribute <IFCGeometricProjection>(ifcRepresentationContext, "TargetView",
IFCGeometricProjection.NotDefined);
UserDefinedTargetView = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentationContext, "UserDefinedTargetView", null);
}
}
}
/// <summary>
/// Processes an IFC physical quantity.
/// </summary>
/// <param name="ifcPhysicalQuantity">The IfcPhysicalQuantity object.</param>
/// <returns>The IFCPhysicalQuantity object.</returns>
override protected void Process(IFCAnyHandle ifcPhysicalQuantity)
{
base.Process(ifcPhysicalQuantity);
Name = IFCImportHandleUtil.GetRequiredStringAttribute(ifcPhysicalQuantity, "Name", true);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(ifcPhysicalQuantity, "Description", null);
}
/// <summary>
/// Processes IfcProductRepresentation attributes.
/// </summary>
/// <param name="ifcProductRepresentation">The IfcProductRepresentation handle.</param>
protected override void Process(IFCAnyHandle ifcProductRepresentation)
{
base.Process(ifcProductRepresentation);
Name = IFCImportHandleUtil.GetOptionalStringAttribute(ifcProductRepresentation, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(ifcProductRepresentation, "Description", null);
List <IFCAnyHandle> representations =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcProductRepresentation, "Representations");
if (representations != null)
{
foreach (IFCAnyHandle representationHnd in representations)
{
try
{
IFCRepresentation representation = IFCRepresentation.ProcessIFCRepresentation(representationHnd);
if (representation != null)
{
if (representation.RepresentationItems.Count > 0 || representation.BoundingBox != null)
{
Representations.Add(representation);
}
}
}
catch (Exception ex)
{
string msg = ex.Message;
// Ignore some specific errors.
if (msg != null)
{
if (!msg.Contains("not imported"))
{
Importer.TheLog.LogError(Id, msg, false);
}
}
}
}
}
if (IFCImportFile.TheFile.SchemaVersion >= IFCSchemaVersion.IFC2x3)
{
if (IFCAnyHandleUtil.IsSubTypeOf(ifcProductRepresentation, IFCEntityType.IfcMaterialDefinitionRepresentation))
{
IFCAnyHandle representedMaterial = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcProductRepresentation, "RepresentedMaterial", false);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(representedMaterial))
{
RepresentedMaterial = IFCMaterial.ProcessIFCMaterial(representedMaterial);
}
}
}
}
override protected void Process(IFCAnyHandle item)
{
base.Process(item);
Name = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Description", null);
Identifier = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Identifier", null);
// We do NOT process AssignedItems here. That is pre-processed to avoid INVERSE attribute calls.
}
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)
{
Importer.TheLog.LogMissingRequiredAttributeError(styledItem, "Styles", true);
}
foreach (IFCAnyHandle style in styles)
{
if (IFCAnyHandleUtil.IsNullOrHasNoValue(style))
{
continue;
}
if (IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC4Obsolete) && IFCAnyHandleUtil.IsValidSubTypeOf(style, IFCEntityType.IfcPresentationStyle))
{
Styles.Add(IFCPresentationStyle.ProcessIFCPresentationStyle(style));
}
else
{
if (Styles.Count != 0)
{
Importer.TheLog.LogWarning(styledItem.StepId, "Multiple presentation styles found for IfcStyledItem - using first.", false);
continue;
}
IFCPresentationStyleAssignment presentationStyleAssignment =
IFCPresentationStyleAssignment.ProcessIFCPresentationStyleAssignment(style);
if (presentationStyleAssignment != null && presentationStyleAssignment.Styles != null)
{
Styles.AddRange(presentationStyleAssignment.Styles);
}
}
}
}
override protected void Process(IFCAnyHandle item)
{
base.Process(item);
Name = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Description", null);
Identifier = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Identifier", null);
IList <IFCAnyHandle> assignedItems = IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(item, "AssignedItems");
foreach (IFCAnyHandle assignedItem in assignedItems)
{
// We do NOT process items here. We only use already created representations and representation items.
IFCEntity entity = null;
if (!IFCImportFile.TheFile.EntityMap.TryGetValue(assignedItem.StepId, out entity))
{
continue;
}
if (IFCAnyHandleUtil.IsSubTypeOf(assignedItem, IFCEntityType.IfcRepresentation))
{
(entity as IFCRepresentation).PostProcessLayerAssignment(this);
}
else if (IFCAnyHandleUtil.IsSubTypeOf(assignedItem, IFCEntityType.IfcRepresentationItem))
{
(entity as IFCRepresentationItem).PostProcessLayerAssignment(this);
}
if (entity != null)
{
AssignedItems.Add(entity);
}
else
{
Importer.TheLog.LogUnhandledSubTypeError(assignedItem, "IfcLayeredItem", false);
}
}
}
protected override void Process(IFCAnyHandle ifcMaterialProfileSet)
{
base.Process(ifcMaterialProfileSet);
IList <IFCAnyHandle> ifcMaterialProfiles =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(ifcMaterialProfileSet, "MaterialProfiles");
if (ifcMaterialProfiles == null)
{
Importer.TheLog.LogError(ifcMaterialProfileSet.Id, "Expected at least 1 MaterialProfile, found none.", false);
return;
}
foreach (IFCAnyHandle ifcMaterialProfile in ifcMaterialProfiles)
{
IFCMaterialProfile materialProfile = null;
if (IFCAnyHandleUtil.IsTypeOf(ifcMaterialProfile, IFCEntityType.IfcMaterialProfileWithOffsets))
{
materialProfile = IFCMaterialProfileWithOffsets.ProcessIFCMaterialProfileWithOffsets(ifcMaterialProfile);
}
else
{
materialProfile = IFCMaterialProfile.ProcessIFCMaterialProfile(ifcMaterialProfile);
}
if (materialProfile != null)
{
MaterialProfileSet.Add(materialProfile);
}
}
Name = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialProfileSet, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialProfileSet, "Description", null);
IFCAnyHandle compositeProfileHnd = IFCImportHandleUtil.GetOptionalInstanceAttribute(ifcMaterialProfileSet, "CompositeProfile");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(compositeProfileHnd))
{
CompositeProfile = IFCCompositeProfile.ProcessIFCCompositeProfile(compositeProfileHnd);
}
}
protected override void Process(IFCAnyHandle ifcMaterialConstituent)
{
base.Process(ifcMaterialConstituent);
IFCAnyHandle ifcMaterial = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcMaterialConstituent, "Material", true);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(ifcMaterial))
{
Material = IFCMaterial.ProcessIFCMaterial(ifcMaterial);
}
Name = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialConstituent, "Name", null);
Description = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialConstituent, "Description", null);
double fraction = IFCImportHandleUtil.GetOptionalRealAttribute(ifcMaterialConstituent, "Fraction", -1);
if (fraction >= 0)
{
Fraction = fraction;
}
Category = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialConstituent, "Category", null);
return;
}
/// <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);
}
}
HashSet <IFCAnyHandle> systemSet =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcSpatialStructureElement, "ServicedBySystems");
if (systemSet != null)
{
if (m_IFCSystems == null)
{
m_IFCSystems = new HashSet <IFCGroup>();
}
foreach (IFCAnyHandle system in systemSet)
{
ProcessIFCRelServicesBuildings(system);
}
}
}
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 = IFCMaterialLayer.ProcessIFCMaterialLayer(ifcMaterialLayer);
if (materialLayer != null)
{
MaterialLayers.Add(materialLayer);
}
}
LayerSetName = IFCImportHandleUtil.GetOptionalStringAttribute(ifcMaterialLayerSet, "LayerSetName", null);
}
/// <summary>
/// Processes an IfcDerivedUnit.
/// </summary>
/// <param name="unitHnd">The unit handle.</param>
void ProcessIFCDerivedUnit(IFCAnyHandle unitHnd)
{
List <IFCAnyHandle> elements =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(unitHnd, "Elements");
IList <KeyValuePair <IFCUnit, int> > derivedElementUnitHnds = new List <KeyValuePair <IFCUnit, int> >();
foreach (IFCAnyHandle subElement in elements)
{
IFCAnyHandle derivedElementUnitHnd = IFCImportHandleUtil.GetRequiredInstanceAttribute(subElement, "Unit", false);
IFCUnit subUnit = IFCAnyHandleUtil.IsNullOrHasNoValue(derivedElementUnitHnd) ? null : IFCUnit.ProcessIFCUnit(derivedElementUnitHnd);
if (subUnit != null)
{
bool found;
int exponent = IFCImportHandleUtil.GetRequiredIntegerAttribute(subElement, "Exponent", out found);
if (found)
{
derivedElementUnitHnds.Add(new KeyValuePair <IFCUnit, int>(subUnit, exponent));
}
}
}
// the DerivedUnitExpectedTypes object is a description of one possible set of base units for a particular derived unit.
// The IList allows for possible different interpretations. For example, Volumetric Flow Rate could be defined by m^3/s (length ^ 3 / time) or L/s (volume / time).
IList <DerivedUnitExpectedTypes> expectedTypesList = new List <DerivedUnitExpectedTypes>();
string unitType = IFCAnyHandleUtil.GetEnumerationAttribute(unitHnd, "UnitType");
if (string.Compare(unitType, "LINEARVELOCITYUNIT", true) == 0)
{
Spec = SpecTypeId.HvacVelocity;
UnitSystem = UnitSystem.Metric;
// Support only m / s.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.MetersPerSecond, SymbolTypeId.MPerS);
expectedTypes.AddExpectedType(1, SpecTypeId.Length);
expectedTypes.AddCustomExpectedType(-1, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "THERMALTRANSMITTANCEUNIT", true) == 0)
{
Spec = SpecTypeId.HeatTransferCoefficient;
UnitSystem = UnitSystem.Metric;
// Support W / (K * m^2) or kg / (K * s^3)
DerivedUnitExpectedTypes expectedTypesWinvKinvM2 = new DerivedUnitExpectedTypes(UnitTypeId.WattsPerSquareMeterKelvin, SymbolTypeId.WPerMSup2K);
expectedTypesWinvKinvM2.AddExpectedType(1, SpecTypeId.HvacPower); // UT_Electrical_Wattage is similar, but UT_HVAC_Power is the one we map to.
expectedTypesWinvKinvM2.AddExpectedType(-1, SpecTypeId.HvacTemperature);
expectedTypesWinvKinvM2.AddExpectedType(-2, SpecTypeId.Length);
expectedTypesList.Add(expectedTypesWinvKinvM2);
DerivedUnitExpectedTypes expectedTypesWinvKinvArea = new DerivedUnitExpectedTypes(UnitTypeId.WattsPerSquareMeterKelvin, SymbolTypeId.WPerMSup2K);
expectedTypesWinvKinvArea.AddExpectedType(1, SpecTypeId.HvacPower); // UT_Electrical_Wattage is similar, but UT_HVAC_Power is the one we map to.
expectedTypesWinvKinvArea.AddExpectedType(-1, SpecTypeId.HvacTemperature);
expectedTypesWinvKinvArea.AddExpectedType(-1, SpecTypeId.Area);
expectedTypesList.Add(expectedTypesWinvKinvArea);
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.WattsPerSquareMeterKelvin, SymbolTypeId.WPerMSup2K);
expectedTypes.AddExpectedType(1, SpecTypeId.Mass);
expectedTypes.AddExpectedType(-1, SpecTypeId.HvacTemperature);
expectedTypes.AddCustomExpectedType(-3, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "VOLUMETRICFLOWRATEUNIT", true) == 0)
{
Spec = SpecTypeId.AirFlow;
UnitSystem = UnitSystem.Metric;
// Support L / s or m^3 / s in the IFC file.
// L / s
DerivedUnitExpectedTypes expectedTypesLPerS = new DerivedUnitExpectedTypes(UnitTypeId.LitersPerSecond, SymbolTypeId.LPerS);
expectedTypesLPerS.AddExpectedType(1, SpecTypeId.Volume);
expectedTypesLPerS.AddCustomExpectedType(-1, "TIMEUNIT");
expectedTypesList.Add(expectedTypesLPerS);
// m^3 / s.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.CubicMetersPerSecond, SymbolTypeId.MSup3PerS);
expectedTypes.AddExpectedType(3, SpecTypeId.Length);
expectedTypes.AddCustomExpectedType(-1, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "MASSDENSITYUNIT", true) == 0)
{
Spec = SpecTypeId.MassDensity;
UnitSystem = UnitSystem.Metric;
// Support kg / m^3 in the IFC file.
// kg / m^3.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.KilogramsPerCubicMeter, SymbolTypeId.KgPerMSup3);
expectedTypes.AddExpectedType(1, SpecTypeId.Mass);
expectedTypes.AddExpectedType(-3, SpecTypeId.Length);
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "LINEARFORCEUNIT", true) == 0)
{
Spec = SpecTypeId.LinearForce;
UnitSystem = UnitSystem.Metric;
// Support N / m in the IFC file.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.NewtonsPerMeter, SymbolTypeId.NPerM);
expectedTypes.AddExpectedType(1, SpecTypeId.LinearForce);
expectedTypesList.Add(expectedTypes);
// Support N / m in basic units
DerivedUnitExpectedTypes expectedTypes2 = new DerivedUnitExpectedTypes(UnitTypeId.NewtonsPerMeter, SymbolTypeId.NPerM);
expectedTypes2.AddExpectedType(1, SpecTypeId.Mass);
expectedTypes2.AddExpectedType(1, SpecTypeId.Length);
expectedTypes2.AddCustomExpectedType(-2, "TIMEUNIT");
expectedTypes2.AddExpectedType(-1, SpecTypeId.Length);
expectedTypesList.Add(expectedTypes2);
}
else if (string.Compare(unitType, "PLANARFORCEUNIT", true) == 0)
{
Spec = SpecTypeId.AreaForce;
UnitSystem = UnitSystem.Metric;
// Support N / m^2 in the IFC file.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.NewtonsPerSquareMeter, SymbolTypeId.NPerMSup2);
expectedTypes.AddExpectedType(1, SpecTypeId.AreaForce);
expectedTypesList.Add(expectedTypes);
// Support N / m in basic units
DerivedUnitExpectedTypes expectedTypes2 = new DerivedUnitExpectedTypes(UnitTypeId.NewtonsPerSquareMeter, SymbolTypeId.NPerMSup2);
expectedTypes2.AddExpectedType(1, SpecTypeId.Mass);
expectedTypes2.AddExpectedType(1, SpecTypeId.Length);
expectedTypes2.AddCustomExpectedType(-2, "TIMEUNIT");
expectedTypes2.AddExpectedType(-2, SpecTypeId.Length);
expectedTypesList.Add(expectedTypes2);
}
else if (string.Compare(unitType, "USERDEFINED", true) == 0)
{
// Look at the sub-types to see what we support.
string userDefinedType = IFCImportHandleUtil.GetOptionalStringAttribute(unitHnd, "UserDefinedType", null);
if (!string.IsNullOrWhiteSpace(userDefinedType))
{
if (string.Compare(userDefinedType, "Luminous Efficacy", true) == 0)
{
Spec = SpecTypeId.Efficacy;
UnitSystem = UnitSystem.Metric;
// Support only lm / W.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.LumensPerWatt, SymbolTypeId.LmPerW);
expectedTypes.AddExpectedType(-1, SpecTypeId.Mass);
expectedTypes.AddExpectedType(-2, SpecTypeId.Length);
expectedTypes.AddCustomExpectedType(3, "TIMEUNIT");
expectedTypes.AddExpectedType(1, SpecTypeId.LuminousFlux);
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(userDefinedType, "Friction Loss", true) == 0)
{
Spec = SpecTypeId.HvacFriction;
UnitSystem = UnitSystem.Metric;
// Support only Pa / m.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitTypeId.PascalsPerMeter, SymbolTypeId.PaPerM);
expectedTypes.AddExpectedType(-2, SpecTypeId.Length);
expectedTypes.AddExpectedType(1, SpecTypeId.Mass);
expectedTypes.AddCustomExpectedType(-2, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
}
}
foreach (DerivedUnitExpectedTypes derivedUnitExpectedTypes in expectedTypesList)
{
double scaleFactor = 1.0;
if (derivedUnitExpectedTypes.Matches(derivedElementUnitHnds, out scaleFactor))
{
// Found a match.
Unit = derivedUnitExpectedTypes.Unit;
Symbol = derivedUnitExpectedTypes.Symbol;
ScaleFactor = scaleFactor;
return;
}
}
Importer.TheLog.LogUnhandledUnitTypeError(unitHnd, unitType);
}
/// <summary>
/// Processes IfcRepresentation attributes.
/// </summary>
/// <param name="ifcRepresentation">The IfcRepresentation handle.</param>
override protected void Process(IFCAnyHandle ifcRepresentation)
{
base.Process(ifcRepresentation);
IFCAnyHandle representationContext = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcRepresentation, "ContextOfItems", false);
if (representationContext != null)
{
Context = IFCRepresentationContext.ProcessIFCRepresentationContext(representationContext);
}
string identifier = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentation, "RepresentationIdentifier", null);
Identifier = GetRepresentationIdentifier(identifier, ifcRepresentation);
Type = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentation, "RepresentationType", null);
HashSet <IFCAnyHandle> items =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(ifcRepresentation, "Items");
LayerAssignment = IFCPresentationLayerAssignment.GetTheLayerAssignment(ifcRepresentation, true);
foreach (IFCAnyHandle item in items)
{
IFCRepresentationItem repItem = null;
try
{
if (NotAllowedInRepresentation(item))
{
IFCEntityType entityType = IFCAnyHandleUtil.GetEntityType(item);
Importer.TheLog.LogWarning(item.StepId, "Ignoring unhandled representation item of type " + entityType.ToString() + " in " +
Identifier.ToString() + " representation.", true);
continue;
}
// Special processing for bounding boxes - only IfcBoundingBox allowed.
if (IFCAnyHandleUtil.IsSubTypeOf(item, IFCEntityType.IfcBoundingBox))
{
// Don't read in Box represenation unless options allow it.
if (IFCImportFile.TheFile.Options.ProcessBoundingBoxGeometry == IFCProcessBBoxOptions.Never)
{
Importer.TheLog.LogWarning(item.StepId, "BoundingBox not imported with ProcessBoundingBoxGeometry=Never", false);
}
else
{
if (BoundingBox != null)
{
Importer.TheLog.LogWarning(item.StepId, "Found second IfcBoundingBox representation item, ignoring.", false);
continue;
}
BoundingBox = ProcessBoundingBox(item);
}
}
else
{
repItem = IFCRepresentationItem.ProcessIFCRepresentationItem(item);
}
}
catch (Exception ex)
{
Importer.TheLog.LogError(item.StepId, ex.Message, false);
}
if (repItem != null)
{
RepresentationItems.Add(repItem);
}
}
}
/// <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);
}
}
var application = IFCImportFile.TheFile.Document.Application;
var projectUnits = IFCImportFile.TheFile.IFCUnits.GetIFCProjectUnit(SpecTypeId.Length);
IFCImportFile.TheFile.VertexTolerance = application.VertexTolerance;
IFCImportFile.TheFile.ShortCurveTolerance = application.ShortCurveTolerance;
Importer.TheProcessor.PostProcessProject(projectUnits?.ScaleFactor, projectUnits?.Unit);
// 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");
bool hasMapConv = false;
XYZ geoRef = XYZ.Zero;
string geoRefName = null;
double trueNorth = 0.0;
if (repContexts != null)
{
foreach (IFCAnyHandle geomRepContextHandle in repContexts)
{
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(geomRepContextHandle) &&
IFCAnyHandleUtil.IsSubTypeOf(geomRepContextHandle, IFCEntityType.IfcGeometricRepresentationContext))
{
IFCRepresentationContext context = IFCRepresentationContext.ProcessIFCRepresentationContext(geomRepContextHandle);
if (TrueNorthDirection == null && context.TrueNorth != null)
{
// TODO: Verify that we don't have inconsistent true norths. If we do, warn.
TrueNorthDirection = new UV(context.TrueNorth.X, context.TrueNorth.Y);
}
if (WorldCoordinateSystem == null && context.WorldCoordinateSystem != null && !context.WorldCoordinateSystem.IsIdentity)
{
WorldCoordinateSystem = context.WorldCoordinateSystem;
}
// Process Map Conversion if any
HashSet <IFCAnyHandle> coordOperation = IFCAnyHandleUtil.GetAggregateInstanceAttribute <HashSet <IFCAnyHandle> >(geomRepContextHandle, "HasCoordinateOperation");
if (coordOperation != null)
{
if (coordOperation.Count > 0)
{
if (IFCAnyHandleUtil.IsSubTypeOf(coordOperation.FirstOrDefault(), IFCEntityType.IfcMapConversion))
{
hasMapConv = true;
IFCAnyHandle mapConv = coordOperation.FirstOrDefault();
bool found = false;
double eastings = IFCImportHandleUtil.GetRequiredScaledLengthAttribute(mapConv, "Eastings", out found);
if (!found)
{
eastings = 0.0;
}
double northings = IFCImportHandleUtil.GetRequiredScaledLengthAttribute(mapConv, "Northings", out found);
if (!found)
{
northings = 0.0;
}
double orthogonalHeight = IFCImportHandleUtil.GetRequiredScaledLengthAttribute(mapConv, "OrthogonalHeight", out found);
if (!found)
{
orthogonalHeight = 0.0;
}
double xAxisAbs = IFCImportHandleUtil.GetOptionalRealAttribute(mapConv, "XAxisAbscissa", 1.0);
double xAxisOrd = IFCImportHandleUtil.GetOptionalRealAttribute(mapConv, "XAxisOrdinate", 0.0);
trueNorth = Math.Atan2(xAxisOrd, xAxisAbs);
//angleToNorth = -((xAxisAngle > -Math.PI / 2.0) ? xAxisAngle - Math.PI / 2.0 : xAxisAngle + Math.PI * 1.5);
double scale = IFCImportHandleUtil.GetOptionalRealAttribute(mapConv, "Scale", 1.0);
geoRef = new XYZ(scale * eastings, scale * northings, scale * orthogonalHeight);
// Process the IfcProjectedCRS
IFCAnyHandle projCRS = IFCAnyHandleUtil.GetInstanceAttribute(mapConv, "TargetCRS");
if (projCRS != null && IFCAnyHandleUtil.IsSubTypeOf(projCRS, IFCEntityType.IfcProjectedCRS))
{
geoRefName = IFCImportHandleUtil.GetRequiredStringAttribute(projCRS, "Name", false);
string desc = IFCImportHandleUtil.GetOptionalStringAttribute(projCRS, "Description", null);
string geodeticDatum = IFCImportHandleUtil.GetOptionalStringAttribute(projCRS, "GeodeticDatum", null);
string verticalDatum = IFCImportHandleUtil.GetOptionalStringAttribute(projCRS, "VerticalDatum", null);
string mapProj = IFCImportHandleUtil.GetOptionalStringAttribute(projCRS, "MapProjection", null);
string mapZone = IFCImportHandleUtil.GetOptionalStringAttribute(projCRS, "MapZone", null);
IFCAnyHandle mapUnit = IFCImportHandleUtil.GetOptionalInstanceAttribute(projCRS, "MapUnit");
Document doc = IFCImportFile.TheFile.Document;
ProjectInfo projectInfo = doc.ProjectInformation;
// We add this here because we want to make sure that external processors (e.g., Navisworks)
// get a chance to add a container for the parameters that get added below. In general,
// we should probably augment Processor.AddParameter to ensure that CreateOrUpdateElement
// is called before anything is attempted to be added. This is a special case, though,
// as in Revit we don't actually create an element for the IfcProject.
Importer.TheProcessor.CreateOrUpdateElement(Id, GlobalId, EntityType.ToString(), CategoryId.IntegerValue, null);
Category category = IFCPropertySet.GetCategoryForParameterIfValid(projectInfo, Id);
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.Name", geoRefName, Id);
if (!string.IsNullOrEmpty(desc))
{
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.Description", desc, Id);
}
if (!string.IsNullOrEmpty(geodeticDatum))
{
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.GeodeticDatum", geodeticDatum, Id);
}
if (!string.IsNullOrEmpty(verticalDatum))
{
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.VerticalDatum", verticalDatum, Id);
}
if (!string.IsNullOrEmpty(mapProj))
{
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.MapProjection", mapProj, Id);
}
if (!string.IsNullOrEmpty(mapZone))
{
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.MapZone", mapZone, Id);
}
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(mapUnit))
{
IFCUnit mapUnitIfc = IFCUnit.ProcessIFCUnit(mapUnit);
string unitStr = UnitUtils.GetTypeCatalogStringForUnit(mapUnitIfc.Unit);
IFCPropertySet.AddParameterString(doc, projectInfo, category, this, "IfcProjectedCRS.MapUnit", unitStr, Id);
double convFactor = UnitUtils.Convert(1.0, mapUnitIfc.Unit, IFCImportFile.TheFile.IFCUnits.GetIFCProjectUnit(SpecTypeId.Length).Unit);
eastings = convFactor * eastings;
northings = convFactor * northings;
orthogonalHeight = convFactor * orthogonalHeight;
geoRef = new XYZ(eastings, northings, orthogonalHeight);
}
}
}
}
}
}
}
ProjectLocation projectLocation = IFCImportFile.TheFile.Document.ActiveProjectLocation;
ProjectPosition projectPosition;
if (projectLocation != null)
{
if (hasMapConv)
{
projectPosition = new ProjectPosition(geoRef.X, geoRef.Y, geoRef.Z, trueNorth);
projectLocation.SetProjectPosition(XYZ.Zero, projectPosition);
if (!string.IsNullOrEmpty(geoRefName))
{
IFCImportFile.TheFile.Document.SiteLocation.SetGeoCoordinateSystem(geoRefName);
}
}
else
{
// Set initial project location based on the information above.
// This may be further modified by the site.
trueNorth = 0.0;
if (TrueNorthDirection != null)
{
trueNorth = -Math.Atan2(-TrueNorthDirection.U, TrueNorthDirection.V);
}
// TODO: Extend this to work properly if the world coordinate system
// isn't a simple translation.
XYZ origin = XYZ.Zero;
if (WorldCoordinateSystem != null)
{
geoRef = WorldCoordinateSystem.Origin;
double angleRot = Math.Atan2(WorldCoordinateSystem.BasisX.Y, WorldCoordinateSystem.BasisX.X);
// If it is translation only, or if the WCS rotation is equal to trueNorth, we assume they are the same
if (WorldCoordinateSystem.IsTranslation ||
MathUtil.IsAlmostEqual(angleRot, trueNorth))
{
WorldCoordinateSystem = null;
}
else
{
// If the trueNorth is not set (=0), set the trueNorth by the rotation of the WCS, otherwise add the angle
if (MathUtil.IsAlmostZero(trueNorth))
{
trueNorth = angleRot;
}
else
{
trueNorth += angleRot;
}
WorldCoordinateSystem = null;
}
}
projectPosition = new ProjectPosition(geoRef.X, geoRef.Y, geoRef.Z, trueNorth);
projectLocation.SetProjectPosition(XYZ.Zero, projectPosition);
}
}
}
}
/// <summary>
/// Processes monetary unit.
/// </summary>
/// <param name="monetaryUnitHnd">The monetary unit handle.</param>
void ProcessIFCMonetaryUnit(IFCAnyHandle monetaryUnitHnd)
{
string currencyType = (IFCImportFile.TheFile.SchemaVersion < IFCSchemaVersion.IFC4) ?
IFCAnyHandleUtil.GetEnumerationAttribute(monetaryUnitHnd, "Currency") :
IFCImportHandleUtil.GetOptionalStringAttribute(monetaryUnitHnd, "Currency", string.Empty);
UnitType = UnitType.UT_Currency;
UnitName = UnitName.DUT_CURRENCY;
UnitSymbol = UnitSymbolType.UST_NONE;
if ((string.Compare(currencyType, "CAD", true) == 0) ||
(string.Compare(currencyType, "USD", true) == 0) ||
(string.Compare(currencyType, "$", true) == 0))
{
UnitSymbol = UnitSymbolType.UST_DOLLAR;
}
else if ((string.Compare(currencyType, "EUR", true) == 0) ||
(string.Compare(currencyType, "€", true) == 0))
{
UnitSymbol = UnitSymbolType.UST_EURO_PREFIX;
}
else if ((string.Compare(currencyType, "GBP", true) == 0) ||
(string.Compare(currencyType, "£", true) == 0))
{
UnitSymbol = UnitSymbolType.UST_POUND;
}
else if (string.Compare(currencyType, "HKD", true) == 0)
{
UnitSymbol = UnitSymbolType.UST_CHINESE_HONG_KONG_SAR;
}
else if ((string.Compare(currencyType, "ICK", true) == 0) ||
(string.Compare(currencyType, "NOK", true) == 0) ||
(string.Compare(currencyType, "SEK", true) == 0))
{
UnitSymbol = UnitSymbolType.UST_KRONER;
}
else if (string.Compare(currencyType, "ILS", true) == 0)
{
UnitSymbol = UnitSymbolType.UST_SHEQEL;
}
else if ((string.Compare(currencyType, "JPY", true) == 0) ||
(string.Compare(currencyType, "¥", true) == 0))
{
UnitSymbol = UnitSymbolType.UST_YEN;
}
else if (string.Compare(currencyType, "KRW", true) == 0)
{
UnitSymbol = UnitSymbolType.UST_WON;
}
else if ((string.Compare(currencyType, "THB", true) == 0) ||
(string.Compare(currencyType, "฿", true) == 0))
{
UnitSymbol = UnitSymbolType.UST_BAHT;
}
else if (string.Compare(currencyType, "VND", true) == 0)
{
UnitSymbol = UnitSymbolType.UST_DONG;
}
else
{
Importer.TheLog.LogWarning(Id, "Unhandled type of currency: " + currencyType, true);
}
}
/// <summary>
/// Processes an IfcDerivedUnit.
/// </summary>
/// <param name="unitHnd">The unit handle.</param>
void ProcessIFCDerivedUnit(IFCAnyHandle unitHnd)
{
List <IFCAnyHandle> elements =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(unitHnd, "Elements");
IList <KeyValuePair <IFCUnit, int> > derivedElementUnitHnds = new List <KeyValuePair <IFCUnit, int> >();
foreach (IFCAnyHandle subElement in elements)
{
IFCAnyHandle derivedElementUnitHnd = IFCImportHandleUtil.GetRequiredInstanceAttribute(subElement, "Unit", false);
IFCUnit subUnit = IFCAnyHandleUtil.IsNullOrHasNoValue(derivedElementUnitHnd) ? null : IFCUnit.ProcessIFCUnit(derivedElementUnitHnd);
if (subUnit != null)
{
bool found;
int exponent = IFCImportHandleUtil.GetRequiredIntegerAttribute(subElement, "Exponent", out found);
if (found)
{
derivedElementUnitHnds.Add(new KeyValuePair <IFCUnit, int>(subUnit, exponent));
}
}
}
// the DerivedUnitExpectedTypes object is a description of one possible set of base units for a particular derived unit.
// The IList allows for possible different interpretations. For example, Volumetric Flow Rate could be defined by m^3/s (length ^ 3 / time) or L/s (volume / time).
IList <DerivedUnitExpectedTypes> expectedTypesList = new List <DerivedUnitExpectedTypes>();
string unitType = IFCAnyHandleUtil.GetEnumerationAttribute(unitHnd, "UnitType");
if (string.Compare(unitType, "LINEARVELOCITYUNIT", true) == 0)
{
UnitType = UnitType.UT_HVAC_Velocity;
UnitSystem = UnitSystem.Metric;
// Support only m / s.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitName.DUT_METERS_PER_SECOND, UnitSymbolType.UST_M_PER_S);
expectedTypes.AddExpectedType(1, UnitType.UT_Length);
expectedTypes.AddCustomExpectedType(-1, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "THERMALTRANSMITTANCEUNIT", true) == 0)
{
UnitType = UnitType.UT_HVAC_CoefficientOfHeatTransfer;
UnitSystem = UnitSystem.Metric;
// Support W / (K * m^2) or kg / (K * s^3)
DerivedUnitExpectedTypes expectedTypesWinvKinvM2 = new DerivedUnitExpectedTypes(UnitName.DUT_WATTS_PER_SQUARE_METER_KELVIN, UnitSymbolType.UST_WATT_PER_SQ_M_K);
expectedTypesWinvKinvM2.AddExpectedType(1, UnitType.UT_HVAC_Power); // UT_Electrical_Wattage is similar, but UT_HVAC_Power is the one we map to.
expectedTypesWinvKinvM2.AddExpectedType(-1, UnitType.UT_HVAC_Temperature);
expectedTypesWinvKinvM2.AddExpectedType(-2, UnitType.UT_Length);
expectedTypesList.Add(expectedTypesWinvKinvM2);
DerivedUnitExpectedTypes expectedTypesWinvKinvArea = new DerivedUnitExpectedTypes(UnitName.DUT_WATTS_PER_SQUARE_METER_KELVIN, UnitSymbolType.UST_WATT_PER_SQ_M_K);
expectedTypesWinvKinvArea.AddExpectedType(1, UnitType.UT_HVAC_Power); // UT_Electrical_Wattage is similar, but UT_HVAC_Power is the one we map to.
expectedTypesWinvKinvArea.AddExpectedType(-1, UnitType.UT_HVAC_Temperature);
expectedTypesWinvKinvArea.AddExpectedType(-1, UnitType.UT_Area);
expectedTypesList.Add(expectedTypesWinvKinvArea);
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitName.DUT_WATTS_PER_SQUARE_METER_KELVIN, UnitSymbolType.UST_WATT_PER_SQ_M_K);
expectedTypes.AddExpectedType(1, UnitType.UT_Mass);
expectedTypes.AddExpectedType(-1, UnitType.UT_HVAC_Temperature);
expectedTypes.AddCustomExpectedType(-3, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "VOLUMETRICFLOWRATEUNIT", true) == 0)
{
UnitType = UnitType.UT_HVAC_Airflow;
UnitSystem = UnitSystem.Metric;
// Support L / s or m^3 / s in the IFC file.
// L / s
DerivedUnitExpectedTypes expectedTypesLPerS = new DerivedUnitExpectedTypes(UnitName.DUT_LITERS_PER_SECOND, UnitSymbolType.UST_L_PER_S);
expectedTypesLPerS.AddExpectedType(1, UnitType.UT_Volume);
expectedTypesLPerS.AddCustomExpectedType(-1, "TIMEUNIT");
expectedTypesList.Add(expectedTypesLPerS);
// m^3 / s.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitName.DUT_CUBIC_METERS_PER_SECOND, UnitSymbolType.UST_CU_M_PER_S);
expectedTypes.AddExpectedType(3, UnitType.UT_Length);
expectedTypes.AddCustomExpectedType(-1, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "MASSDENSITYUNIT", true) == 0)
{
UnitType = UnitType.UT_MassDensity;
UnitSystem = UnitSystem.Metric;
// Support kg / m^3 in the IFC file.
// kg / m^3.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitName.DUT_KILOGRAMS_PER_CUBIC_METER, UnitSymbolType.UST_KG_PER_CU_M);
expectedTypes.AddExpectedType(1, UnitType.UT_Mass);
expectedTypes.AddExpectedType(-3, UnitType.UT_Length);
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(unitType, "USERDEFINED", true) == 0)
{
// Look at the sub-types to see what we support.
string userDefinedType = IFCImportHandleUtil.GetOptionalStringAttribute(unitHnd, "UserDefinedType", null);
if (!string.IsNullOrWhiteSpace(userDefinedType))
{
if (string.Compare(userDefinedType, "Luminous Efficacy", true) == 0)
{
UnitType = UnitType.UT_Electrical_Efficacy;
UnitSystem = UnitSystem.Metric;
// Support only lm / W.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitName.DUT_LUMENS_PER_WATT, UnitSymbolType.UST_LM_PER_W);
expectedTypes.AddExpectedType(-1, UnitType.UT_Mass);
expectedTypes.AddExpectedType(-2, UnitType.UT_Length);
expectedTypes.AddCustomExpectedType(3, "TIMEUNIT");
expectedTypes.AddExpectedType(1, UnitType.UT_Electrical_Luminous_Flux);
expectedTypesList.Add(expectedTypes);
}
else if (string.Compare(userDefinedType, "Friction Loss", true) == 0)
{
UnitType = UnitType.UT_HVAC_Friction;
UnitSystem = UnitSystem.Metric;
// Support only Pa / m.
DerivedUnitExpectedTypes expectedTypes = new DerivedUnitExpectedTypes(UnitName.DUT_PASCALS_PER_METER, UnitSymbolType.UST_PASCAL_PER_M);
expectedTypes.AddExpectedType(-2, UnitType.UT_Length);
expectedTypes.AddExpectedType(1, UnitType.UT_Mass);
expectedTypes.AddCustomExpectedType(-2, "TIMEUNIT");
expectedTypesList.Add(expectedTypes);
}
}
}
foreach (DerivedUnitExpectedTypes derivedUnitExpectedTypes in expectedTypesList)
{
double scaleFactor = 1.0;
if (derivedUnitExpectedTypes.Matches(derivedElementUnitHnds, out scaleFactor))
{
// Found a match.
UnitName = derivedUnitExpectedTypes.UnitName;
UnitSymbol = derivedUnitExpectedTypes.UnitSymbol;
ScaleFactor = scaleFactor;
return;
}
}
Importer.TheLog.LogUnhandledUnitTypeError(unitHnd, unitType);
}
/// <summary>
/// Processes IfcRepresentationContext attributes.
/// </summary>
/// <param name="ifcRepresentationContext">The IfcRepresentationContext handle.</param>
override protected void Process(IFCAnyHandle ifcRepresentationContext)
{
base.Process(ifcRepresentationContext);
Identifier = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentationContext, "ContextIdentifier", null);
Type = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentationContext, "ContextType", null);
if (IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationContext, IFCEntityType.IfcGeometricRepresentationContext))
{
bool found = false;
CoordinateSpaceDimension = IFCImportHandleUtil.GetRequiredIntegerAttribute(ifcRepresentationContext, "CoordinateSpaceDimension", out found);
if (!found)
{
CoordinateSpaceDimension = 3; // Don't throw, just set to default 3D.
}
Precision = IFCImportHandleUtil.GetOptionalScaledLengthAttribute(ifcRepresentationContext, "Precision", IFCImportFile.TheFile.Document.Application.VertexTolerance);
IFCAnyHandle worldCoordinateSystem = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcRepresentationContext, "WorldCoordinateSystem", false);
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(worldCoordinateSystem))
{
WorldCoordinateSystem = IFCLocation.ProcessIFCAxis2Placement(worldCoordinateSystem);
}
else
{
WorldCoordinateSystem = Transform.Identity;
}
bool isSubContext = IFCImportFile.TheFile.SchemaVersionAtLeast(IFCSchemaVersion.IFC2x2) &&
IFCAnyHandleUtil.IsSubTypeOf(ifcRepresentationContext, IFCEntityType.IfcGeometricRepresentationSubContext);
if (isSubContext)
{
IFCAnyHandle parentContext = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcRepresentationContext, "ParentContext", true);
ParentContext = IFCRepresentationContext.ProcessIFCRepresentationContext(parentContext);
TrueNorth = ParentContext.TrueNorth;
}
else
{
// This used to fail for IfcGeometricRepresentationSubContext, because the TrueNorth attribute was derived from
// the IfcGeometricRepresentationContext, and the toolkit returned what seemed to be a valid handle that actually
// wasn't. The code has now been rewritten to avoid this issue, but we will keep the try/catch block in case we
// were also catching other serious issues.
try
{
// By default, True North points in the Y-Direction.
IFCAnyHandle trueNorth = IFCImportHandleUtil.GetOptionalInstanceAttribute(ifcRepresentationContext, "TrueNorth");
if (!IFCAnyHandleUtil.IsNullOrHasNoValue(trueNorth))
{
TrueNorth = IFCPoint.ProcessNormalizedIFCDirection(trueNorth);
}
else
{
TrueNorth = XYZ.BasisY;
}
}
catch
{
TrueNorth = XYZ.BasisY;
}
}
if (isSubContext)
{
TargetScale = IFCImportHandleUtil.GetOptionalPositiveRatioAttribute(ifcRepresentationContext, "TargetScale", 1.0);
TargetView = IFCEnums.GetSafeEnumerationAttribute <IFCGeometricProjection>(ifcRepresentationContext, "TargetView",
IFCGeometricProjection.NotDefined);
UserDefinedTargetView = IFCImportHandleUtil.GetOptionalStringAttribute(ifcRepresentationContext, "UserDefinedTargetView", null);
}
}
}
/// <summary>
/// Processes monetary unit.
/// </summary>
/// <param name="monetaryUnitHnd">The monetary unit handle.</param>
void ProcessIFCMonetaryUnit(IFCAnyHandle monetaryUnitHnd)
{
string currencyType = (IFCImportFile.TheFile.SchemaVersion < IFCSchemaVersion.IFC4) ?
IFCAnyHandleUtil.GetEnumerationAttribute(monetaryUnitHnd, "Currency") :
IFCImportHandleUtil.GetOptionalStringAttribute(monetaryUnitHnd, "Currency", string.Empty);
Spec = SpecTypeId.Currency;
Unit = UnitTypeId.Currency;
Symbol = new ForgeTypeId();
if ((string.Compare(currencyType, "CAD", true) == 0) ||
(string.Compare(currencyType, "USD", true) == 0) ||
(string.Compare(currencyType, "$", true) == 0))
{
Symbol = SymbolTypeId.UsDollar;
}
else if ((string.Compare(currencyType, "EUR", true) == 0) ||
(string.Compare(currencyType, "€", true) == 0))
{
Symbol = SymbolTypeId.EuroPrefix;
}
else if ((string.Compare(currencyType, "GBP", true) == 0) ||
(string.Compare(currencyType, "£", true) == 0))
{
Symbol = SymbolTypeId.UkPound;
}
else if (string.Compare(currencyType, "HKD", true) == 0)
{
Symbol = SymbolTypeId.ChineseHongKongDollar;
}
else if ((string.Compare(currencyType, "ICK", true) == 0) ||
(string.Compare(currencyType, "NOK", true) == 0) ||
(string.Compare(currencyType, "SEK", true) == 0))
{
Symbol = SymbolTypeId.Krone;
}
else if (string.Compare(currencyType, "ILS", true) == 0)
{
Symbol = SymbolTypeId.Shekel;
}
else if ((string.Compare(currencyType, "JPY", true) == 0) ||
(string.Compare(currencyType, "¥", true) == 0))
{
Symbol = SymbolTypeId.Yen;
}
else if (string.Compare(currencyType, "KRW", true) == 0)
{
Symbol = SymbolTypeId.Won;
}
else if ((string.Compare(currencyType, "THB", true) == 0) ||
(string.Compare(currencyType, "฿", true) == 0))
{
Symbol = SymbolTypeId.Baht;
}
else if (string.Compare(currencyType, "VND", true) == 0)
{
Symbol = SymbolTypeId.Dong;
}
else
{
Importer.TheLog.LogWarning(Id, "Unhandled type of currency: " + currencyType, true);
}
}
/// <summary>
/// Processes IfcGridAxis attributes.
/// </summary>
/// <param name="ifcGridAxis">The IfcGridAxis handle.</param>
protected override void Process(IFCAnyHandle ifcGridAxis)
{
base.Process(ifcGridAxis);
AxisTag = IFCImportHandleUtil.GetOptionalStringAttribute(ifcGridAxis, "AxisTag", null);
if (AxisTag == null)
{
AxisTag = "Z"; // arbitrary; all Revit Grids have names.
}
IFCAnyHandle axisCurve = IFCImportHandleUtil.GetRequiredInstanceAttribute(ifcGridAxis, "AxisCurve", true);
AxisCurve = IFCCurve.ProcessIFCCurve(axisCurve);
bool found = false;
bool sameSense = IFCImportHandleUtil.GetRequiredBooleanAttribute(ifcGridAxis, "SameSense", out found);
SameSense = found ? sameSense : true;
// We are going to check if this grid axis is a vertical duplicate of any existing axis.
// If so, we will throw an exception so that we don't create duplicate grids.
// We will only initialize these values if we actually intend to use them below.
IList <Curve> curves = null;
int curveCount = 0;
ElementId gridId = ElementId.InvalidElementId;
if (Importer.TheCache.GridNameToElementMap.TryGetValue(AxisTag, out gridId))
{
Grid grid = IFCImportFile.TheFile.Document.GetElement(gridId) as Grid;
if (grid != null)
{
IList <Curve> otherCurves = new List <Curve>();
Curve gridCurve = grid.Curve;
if (gridCurve != null)
{
otherCurves.Add(gridCurve);
int matchingGridId = FindMatchingGrid(otherCurves, grid.Id.IntegerValue, ref curves, ref curveCount);
if (matchingGridId != -1)
{
Importer.TheCache.UseGrid(grid);
CreatedElementId = grid.Id;
return;
}
}
}
}
IDictionary <string, IFCGridAxis> gridAxes = IFCImportFile.TheFile.IFCProject.GridAxes;
IFCGridAxis gridAxis = null;
if (gridAxes.TryGetValue(AxisTag, out gridAxis))
{
int matchingGridId = FindMatchingGrid(gridAxis, ref curves, ref curveCount);
if (matchingGridId != -1)
{
DuplicateAxisId = matchingGridId;
return;
}
else
{
// Revit doesn't allow grid lines to have the same name. If it isn't a duplicate, rename it.
// Note that this will mean that we may miss some "duplicate" grid lines because of the renaming.
AxisTag = MakeAxisTagUnique(AxisTag);
}
}
gridAxes.Add(new KeyValuePair <string, IFCGridAxis>(AxisTag, this));
}
override protected void Process(IFCAnyHandle item)
{
base.Process(item);
Name = IFCImportHandleUtil.GetOptionalStringAttribute(item, "Name", null);
}
/// <summary>
/// Processes an IfcDerivedUnit.
/// </summary>
/// <param name="unitHnd">The unit handle.</param>
void ProcessIFCDerivedUnit(IFCAnyHandle unitHnd)
{
List <IFCAnyHandle> elements =
IFCAnyHandleUtil.GetAggregateInstanceAttribute <List <IFCAnyHandle> >(unitHnd, "Elements");
IList <KeyValuePair <IFCUnit, int> > derivedElementUnitHnds = new List <KeyValuePair <IFCUnit, int> >();
foreach (IFCAnyHandle subElement in elements)
{
IFCAnyHandle derivedElementUnitHnd = IFCImportHandleUtil.GetRequiredInstanceAttribute(subElement, "Unit", false);
IFCUnit subUnit = IFCAnyHandleUtil.IsNullOrHasNoValue(derivedElementUnitHnd) ? null : IFCUnit.ProcessIFCUnit(derivedElementUnitHnd);
if (subUnit != null)
{
bool found;
int exponent = IFCImportHandleUtil.GetRequiredIntegerAttribute(subElement, "Exponent", out found);
if (found)
{
derivedElementUnitHnds.Add(new KeyValuePair <IFCUnit, int>(subUnit, exponent));
}
}
}
ISet <Tuple <int, UnitType, string> > expectedTypes = new HashSet <Tuple <int, UnitType, string> >();
string unitType = IFCAnyHandleUtil.GetEnumerationAttribute(unitHnd, "UnitType");
if (string.Compare(unitType, "THERMALTRANSMITTANCEUNIT", true) == 0)
{
UnitType = UnitType.UT_HVAC_CoefficientOfHeatTransfer;
UnitSystem = UnitSystem.Metric;
UnitName = UnitName.DUT_WATTS_PER_SQUARE_METER_KELVIN;
// Support only kg / (K * s^3).
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(1, UnitType.UT_Mass, null));
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(-1, UnitType.UT_HVAC_Temperature, null));
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(-3, UnitType.UT_Custom, "TIMEUNIT"));
}
else if (string.Compare(unitType, "VOLUMETRICFLOWRATEUNIT", true) == 0)
{
UnitType = UnitType.UT_HVAC_Airflow;
UnitSystem = UnitSystem.Metric;
UnitName = UnitName.DUT_CUBIC_METERS_PER_SECOND;
// Support only m^3 / s.
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(3, UnitType.UT_Length, null));
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(-1, UnitType.UT_Custom, "TIMEUNIT"));
}
else if (string.Compare(unitType, "USERDEFINED", true) == 0)
{
// Look at the sub-types to see what we support.
string userDefinedType = IFCImportHandleUtil.GetOptionalStringAttribute(unitHnd, "UserDefinedType", null);
if (!string.IsNullOrWhiteSpace(userDefinedType))
{
if (string.Compare(userDefinedType, "Luminous Efficacy", true) == 0)
{
UnitType = UnitType.UT_Electrical_Efficacy;
UnitSystem = UnitSystem.Metric;
UnitName = UnitName.DUT_LUMENS_PER_WATT;
// Support only lm / W.
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(-1, UnitType.UT_Mass, null));
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(-2, UnitType.UT_Length, null));
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(3, UnitType.UT_Custom, "TIMEUNIT"));
expectedTypes.Add(new Tuple <int, Autodesk.Revit.DB.UnitType, string>(1, UnitType.UT_Electrical_Luminous_Flux, null));
}
}
}
double scaleFactor = 1.0;
if (derivedElementUnitHnds.Count == expectedTypes.Count)
{
foreach (KeyValuePair <IFCUnit, int> derivedElementUnitHnd in derivedElementUnitHnds)
{
int dimensionality = derivedElementUnitHnd.Value;
Tuple <int, UnitType, string> currKey = new Tuple <int, UnitType, string>(dimensionality, derivedElementUnitHnd.Key.UnitType, derivedElementUnitHnd.Key.CustomUnitType);
if (expectedTypes.Contains(currKey))
{
expectedTypes.Remove(currKey);
scaleFactor *= Math.Pow(derivedElementUnitHnd.Key.ScaleFactor, dimensionality);
}
else
{
break;
}
}
// Found all supported units.
if (expectedTypes.Count == 0)
{
ScaleFactor = scaleFactor;
return;
}
}
IFCImportFile.TheLog.LogUnhandledUnitTypeError(unitHnd, unitType);
}
