static void AddConnection(ExporterIFC exporterIFC, Connector connector, Connector connected, bool isBiDirectional, bool isElectricalDomain)
{
// Port connection is not allowed in IFC4RV MVD
if (ExporterCacheManager.ExportOptionsCache.ExportAs4ReferenceView)
{
return;
}
Element inElement = connector.Owner;
Element outElement = connected.Owner;
if (isElectricalDomain)
{
// We may get a connection back to the original element. Ignore it.
if (inElement.Id == outElement.Id)
{
return;
}
// Check the outElement to see if it is a Wire; if so, get its connections and "skip" the wire.
if (outElement is Wire)
{
if (m_ProcessedWires.Contains(outElement.Id))
{
return;
}
m_ProcessedWires.Add(outElement.Id);
try
{
ConnectorSet wireConnectorSet = MEPCache.GetConnectorsForWire(outElement as Wire);
if (wireConnectorSet != null)
{
foreach (Connector connectedToWire in wireConnectorSet)
{
ProcessConnections(exporterIFC, connectedToWire, connector);
}
}
}
catch
{
}
return;
}
}
// Check if the connection already exist
if (ConnectionExists(inElement.Id, outElement.Id))
{
return;
}
if (isBiDirectional)
{
if (ConnectionExists(outElement.Id, inElement.Id))
{
return;
}
}
IFCAnyHandle inElementIFCHandle = ExporterCacheManager.MEPCache.Find(inElement.Id);
IFCAnyHandle outElementIFCHandle = ExporterCacheManager.MEPCache.Find(outElement.Id);
// Note TBD: In IFC4 the IfcRelConnectsPortToElement should be used for a dynamic connection. THe static connection should use IfcRelNests
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
if (inElementIFCHandle == null || outElementIFCHandle == null ||
!IFCAnyHandleUtil.IsSubTypeOf(inElementIFCHandle, IFCEntityType.IfcDistributionElement) ||
!IFCAnyHandleUtil.IsSubTypeOf(outElementIFCHandle, IFCEntityType.IfcDistributionElement))
{
return;
}
}
else
{
if (inElementIFCHandle == null || outElementIFCHandle == null ||
!IFCAnyHandleUtil.IsSubTypeOf(inElementIFCHandle, IFCEntityType.IfcElement) ||
!IFCAnyHandleUtil.IsSubTypeOf(outElementIFCHandle, IFCEntityType.IfcElement))
{
return;
}
}
IFCFile ifcFile = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IFCAnyHandle portOut = null;
IFCAnyHandle portIn = null;
// ----------------------- In Port ----------------------
{
string guid = GUIDUtil.CreateGUID();
IFCFlowDirection flowDir = (isBiDirectional) ? IFCFlowDirection.SourceAndSink : IFCFlowDirection.Sink;
IFCAnyHandle localPlacement = CreateLocalPlacementForConnector(exporterIFC, connector, inElementIFCHandle, flowDir);
string portName = "InPort_" + inElement.Id;
string portType = "Flow"; // Assigned as Port.Description
portIn = IFCInstanceExporter.CreateDistributionPort(exporterIFC, null, guid, ownerHistory, localPlacement, null, flowDir);
IFCAnyHandleUtil.OverrideNameAttribute(portIn, portName);
IFCAnyHandleUtil.SetAttribute(portIn, "Description", portType);
// Attach the port to the element
guid = GUIDUtil.CreateGUID();
string connectionName = inElement.Id + "|" + guid;
IFCAnyHandle connectorIn = IFCInstanceExporter.CreateRelConnectsPortToElement(ifcFile, guid, ownerHistory, connectionName, portType, portIn, inElementIFCHandle);
}
// ----------------------- Out Port----------------------
{
string guid = GUIDUtil.CreateGUID();
IFCFlowDirection flowDir = (isBiDirectional) ? IFCFlowDirection.SourceAndSink : IFCFlowDirection.Source;
IFCAnyHandle localPlacement = CreateLocalPlacementForConnector(exporterIFC, connected, outElementIFCHandle, flowDir);
string portName = "OutPort_" + outElement.Id;
string portType = "Flow"; // Assigned as Port.Description
portOut = IFCInstanceExporter.CreateDistributionPort(exporterIFC, null, guid, ownerHistory, localPlacement, null, flowDir);
IFCAnyHandleUtil.OverrideNameAttribute(portOut, portName);
IFCAnyHandleUtil.SetAttribute(portOut, "Description", portType);
// Attach the port to the element
guid = GUIDUtil.CreateGUID();
string connectionName = outElement.Id + "|" + guid;
IFCAnyHandle connectorOut = IFCInstanceExporter.CreateRelConnectsPortToElement(ifcFile, guid, ownerHistory, connectionName, portType, portOut, outElementIFCHandle);
}
// ----------------------- Out Port -> In Port ----------------------
if (portOut != null && portIn != null)
{
Element elemToUse = (inElement.Id.IntegerValue < outElement.Id.IntegerValue) ? inElement : outElement;
string guid = GUIDUtil.CreateGUID();
IFCAnyHandle realizingElement = null;
string connectionName = ExporterUtil.GetGlobalId(portIn) + "|" + ExporterUtil.GetGlobalId(portOut);
string connectionType = "Flow"; // Assigned as Description
IFCInstanceExporter.CreateRelConnectsPorts(ifcFile, guid, ownerHistory, connectionName, connectionType, portIn, portOut, realizingElement);
AddConnectionInternal(inElement.Id, outElement.Id);
}
// Add the handles to the connector system.
HashSet <MEPSystem> systemList = new HashSet <MEPSystem>();
try
{
MEPSystem system = connector.MEPSystem;
if (system != null)
{
systemList.Add(system);
}
}
catch
{
}
if (isElectricalDomain)
{
foreach (MEPSystem system in systemList)
{
ExporterCacheManager.SystemsCache.AddElectricalSystem(system.Id);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, inElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, outElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, portIn);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, portOut);
}
}
else
{
foreach (MEPSystem system in systemList)
{
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, inElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, outElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, portIn);
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, portOut);
}
}
}
static void AddConnection(ExporterIFC exporterIFC, Connector connector, Connector connected, bool isBiDirectional, bool isElectricalDomain)
{
// Port connection is changed in IFC4 to use IfcRelNests for static connection. IfcRelConnectsPortToElement is used for a dynamic connection and it is restricted to IfcDistributionElement
bool isIFC4AndAbove = !ExporterCacheManager.ExportOptionsCache.ExportAsOlderThanIFC4;
Element inElement = connector.Owner;
Element outElement = connected.Owner;
if (isElectricalDomain)
{
// We may get a connection back to the original element. Ignore it.
if (inElement.Id == outElement.Id)
{
return;
}
// Check the outElement to see if it is a Wire; if so, get its connections and "skip" the wire.
if (outElement is Wire)
{
if (m_ProcessedWires.Contains(outElement.Id))
{
return;
}
m_ProcessedWires.Add(outElement.Id);
ExporterCacheManager.SystemsCache.AddElectricalSystem((outElement as Wire).MEPSystem.Id);
try
{
ConnectorSet wireConnectorSet = MEPCache.GetConnectorsForWire(outElement as Wire);
if (wireConnectorSet != null)
{
foreach (Connector connectedToWire in wireConnectorSet)
{
ProcessConnections(exporterIFC, connectedToWire, connector);
}
}
}
catch
{
}
return;
}
}
// Check if the connection already exist
if (ConnectionExists(inElement.Id, outElement.Id))
{
return;
}
if (isBiDirectional)
{
if (ConnectionExists(outElement.Id, inElement.Id))
{
return;
}
}
IFCAnyHandle inElementIFCHandle = ExporterCacheManager.MEPCache.Find(inElement.Id);
IFCAnyHandle outElementIFCHandle = ExporterCacheManager.MEPCache.Find(outElement.Id);
// Note: In IFC4 the IfcRelConnectsPortToElement should be used for a dynamic connection. The static connection should use IfcRelNests
if (ExporterCacheManager.ExportOptionsCache.ExportAs4)
{
if (inElementIFCHandle == null || outElementIFCHandle == null ||
!IFCAnyHandleUtil.IsSubTypeOf(inElementIFCHandle, IFCEntityType.IfcObjectDefinition) ||
!IFCAnyHandleUtil.IsSubTypeOf(outElementIFCHandle, IFCEntityType.IfcObjectDefinition))
{
return;
}
}
else
{
if (inElementIFCHandle == null || outElementIFCHandle == null ||
!IFCAnyHandleUtil.IsSubTypeOf(inElementIFCHandle, IFCEntityType.IfcElement) ||
!IFCAnyHandleUtil.IsSubTypeOf(outElementIFCHandle, IFCEntityType.IfcElement))
{
return;
}
}
IFCFile ifcFile = exporterIFC.GetFile();
IFCAnyHandle ownerHistory = ExporterCacheManager.OwnerHistoryHandle;
IFCAnyHandle portOut = null;
IFCAnyHandle portIn = null;
// Note: the GUIDs below are stable under the assumption that there is only one distribution
// port from element A to element B. Also, note that we don't need the "real" GUIDs for these
// elements, just stable ones.
string inGuid = ExportUtils.GetExportId(inElement.Document, inElement.Id).ToString();
string outGuid = ExportUtils.GetExportId(outElement.Document, outElement.Id).ToString();
string portInGuid = null;
string portOutGuid = null;
// ----------------------- In Port ----------------------
{
portInGuid = GUIDUtil.GenerateIFCGuidFrom("InPort" + connector.Id, inElement, outElement);
IFCFlowDirection flowDir = (isBiDirectional) ? IFCFlowDirection.SourceAndSink : IFCFlowDirection.Sink;
IFCAnyHandle localPlacement = CreateLocalPlacementForConnector(exporterIFC, connector, inElementIFCHandle, flowDir);
portIn = IFCInstanceExporter.CreateDistributionPort(exporterIFC, null, portInGuid, ownerHistory, localPlacement, null, flowDir);
string portType = "Flow"; // Assigned as Port.Description
ExporterCacheManager.MEPCache.CacheConnectorHandle(connector, portIn);
SetDistributionPortAttributes(portIn, connector, portType, inElement.Id, ref flowDir);
// Attach the port to the element
string guid = GUIDUtil.GenerateIFCGuidFrom("InPortRelConnects" + connector.Id, inElement, outElement);
string connectionName = inElement.Id + "|" + guid;
// Port connection is changed in IFC4 to use IfcRelNests for static connection. IfcRelConnectsPortToElement is used for a dynamic connection and it is restricted to IfcDistributionElement
// The following code collects the ports that are nested to the object to be assigned later
if (isIFC4AndAbove)
{
AddNestedMembership(inElementIFCHandle, portIn);
}
else
{
IFCInstanceExporter.CreateRelConnectsPortToElement(ifcFile, guid, ownerHistory, connectionName, portType, portIn, inElementIFCHandle);
}
}
// ----------------------- Out Port----------------------
{
portOutGuid = GUIDUtil.GenerateIFCGuidFrom("OutPort" + connector.Id, outElement, inElement);
IFCFlowDirection flowDir = (isBiDirectional) ? IFCFlowDirection.SourceAndSink : IFCFlowDirection.Source;
IFCAnyHandle localPlacement = CreateLocalPlacementForConnector(exporterIFC, connected, outElementIFCHandle, flowDir);
portOut = IFCInstanceExporter.CreateDistributionPort(exporterIFC, null, portOutGuid, ownerHistory, localPlacement, null, flowDir);
string portType = "Flow"; // Assigned as Port.Description
ExporterCacheManager.MEPCache.CacheConnectorHandle(connected, portOut);
SetDistributionPortAttributes(portOut, connected, portType, outElement.Id, ref flowDir);
// Attach the port to the element
string guid = GUIDUtil.GenerateIFCGuidFrom("OutPortRelConnects" + connector.Id.ToString(), outElement, inElement);
string connectionName = outElement.Id + "|" + guid;
// Port connection is changed in IFC4 to use IfcRelNests for static connection. IfcRelConnectsPortToElement is used for a dynamic connection and it is restricted to IfcDistributionElement
// The following code collects the ports that are nested to the object to be assigned later
if (isIFC4AndAbove)
{
AddNestedMembership(outElementIFCHandle, portOut);
}
else
{
IFCInstanceExporter.CreateRelConnectsPortToElement(ifcFile, guid, ownerHistory, connectionName, portType, portOut, outElementIFCHandle);
}
}
// ----------------------- Out Port -> In Port ----------------------
if (portOut != null && portIn != null)
{
IFCAnyHandle realizingElement = null;
string connectionName = portInGuid + "|" + portOutGuid;
string connectionType = "Flow"; // Assigned as Description
string guid = GUIDUtil.GenerateIFCGuidFrom(IFCEntityType.IfcRelConnectsPorts, portIn, portOut);
IFCInstanceExporter.CreateRelConnectsPorts(ifcFile, guid, ownerHistory, connectionName, connectionType, portIn, portOut, realizingElement);
AddConnectionInternal(inElement.Id, outElement.Id);
}
// Add the handles to the connector system.
HashSet <MEPSystem> systemList = new HashSet <MEPSystem>();
try
{
MEPSystem system = connector.MEPSystem;
if (system != null)
{
systemList.Add(system);
}
}
catch
{
}
if (isElectricalDomain)
{
foreach (MEPSystem system in systemList)
{
ExporterCacheManager.SystemsCache.AddElectricalSystem(system.Id);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, inElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, outElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, portIn);
ExporterCacheManager.SystemsCache.AddHandleToElectricalSystem(system.Id, portOut);
}
}
else
{
foreach (MEPSystem system in systemList)
{
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, inElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, outElementIFCHandle);
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, portIn);
ExporterCacheManager.SystemsCache.AddHandleToBuiltInSystem(system, portOut);
}
}
}