/// <summary>
/// Performs grouping based on the XML data provided.
/// </summary>
/// <param name="errLog">Stream for err output</param>
/// <returns>True if grouping was successful. False otherwise.</returns>
public bool PerformGrouping()
{
errLog = new StringWriter();
if (_xmlDoc == null)
{
errLog.WriteLine("No input XML data.");
return(false);
}
//get all group nodes
XmlNodeList groups = _xmlDoc.GetElementsByTagName("group");
if (groups == null || groups.Count == 0)
{
errLog.WriteLine("No group rules in the XML document");
return(false);
}
//clear groups from elements
ClearGroups(_rootGroup);
//create group for all non-grouped elements
IfcGroup noGroup = GetGroup("No group");
if (noGroup == null)
{
noGroup = _model.Instances.New <IfcGroup>(gr => { gr.Name = "No group"; gr.Description = ""; });
_rootGroup.AddObjectToGroup(noGroup);
}
List <IfcElement> allElements = _model.Instances.OfType <IfcElement>().ToList();
List <IfcTypeObject> allTypes = _model.Instances.OfType <IfcTypeObject>().ToList();
foreach (XmlNode group in groups)
{
grpName = GetName(group);
if (String.IsNullOrEmpty(grpName))
{
errLog.WriteLine("Group without name detected. All information in this group specification will be skipped.");
continue;
}
//search for the existing group with the same name (convert to upper case for the comparison) and create new group if none exists.
IfcGroup iGroup = GetGroup(grpName);
if (iGroup == null)
{
iGroup = _model.Instances.New <IfcGroup>(gr => gr.Name = grpName);
_rootGroup.AddObjectToGroup(iGroup);
}
//process all ifc objects specified for the group
XmlNodeList elements = ((XmlElement)group).GetElementsByTagName("element");
foreach (XmlNode element in group)
{
eName = GetName(element);
if (String.IsNullOrEmpty(eName))
{
errLog.WriteLine("Element without name detected in group '" + grpName + "'. This element will NOT be included in the");
continue;
}
//get elemType for reflection of attributes
IfcType ifcType;
if (!IfcMetaData.TryGetIfcType(eName, out ifcType))
{
continue;
}
else
{
elemType = ifcType.Type;
}
XbimQueryBuilder qBuilder = new XbimQueryBuilder(elemType);
//process all element attributes
XmlNodeList attributeGroups = ((XmlElement)element).GetElementsByTagName("attributes");
//there could be different grouping rules for attribute rules inside (all, none, oneOf, any)
foreach (XmlNode attrGroup in attributeGroups)
{
CreateAttributeCondition(qBuilder, attrGroup);
}
//process element properties
XmlNodeList propertyGroups = ((XmlElement)element).GetElementsByTagName("properties");
//there could be different grouping rules for attribute rules inside (all, none, oneOf, any)
foreach (XmlNode propGroup in propertyGroups)
{
CreatePropertyCondition(qBuilder, propGroup);
}
//element type processing
IEnumerable <IPersistIfcEntity> types = null;
XmlNodeList elTypeNodeList = (element as XmlElement).GetElementsByTagName("elementType");
foreach (XmlNode elTypeNode in elTypeNodeList) //there should be just one 'elTypeNode'
{
XbimQueryBuilder typeQueryBuilder = null;
elTypeName = elTypeNode.InnerText;
if (string.IsNullOrEmpty(elTypeName))
{
errLog.WriteLine("Name of the element type is not specified for element of type '" + eName + "'. Element type conditions will not be applied. ");
continue;
}
IfcType ifcTypeLookup;
if (!IfcMetaData.TryGetIfcType(eName, out ifcTypeLookup))
{
continue;
}
else
{
elemType = ifcTypeLookup.Type;
}
if (!typeof(IfcTypeObject).IsAssignableFrom(elemType))
{
errLog.WriteLine("'" + elTypeName + "' is not type object.");
continue;
}
typeQueryBuilder = new XbimQueryBuilder(elTypeName);
//type attributes
XmlNodeList typeAttrGroups = ((XmlElement)element).GetElementsByTagName("typeAttributes");
foreach (XmlNode typeAttrGrpNode in typeAttrGroups)
{
CreateAttributeCondition(typeQueryBuilder, typeAttrGrpNode);
}
//process element type properties
XmlNodeList typePropGroups = ((XmlElement)element).GetElementsByTagName("typeProperties");
//there could be different grouping rules for attribute rules inside (all, none, oneOf, any)
foreach (XmlNode propGroup in typePropGroups)
{
CreatePropertyCondition(typeQueryBuilder, propGroup);
}
types = _model.Instances.Where <IPersistIfcEntity>(typeQueryBuilder.BuildQuery());
break;
}
//get elements and element type
IEnumerable <IPersistIfcEntity> instances = allElements.Where(qBuilder.BuildQuery().Compile()).ToList();
//check elements against element type (if defined)
if (types != null)
{
instances = FilterElementsByType(instances, types);
}
//add result to the group
foreach (var inst in instances)
{
IfcElement el = inst as IfcElement;
if (el != null && allElements.Remove(el))
{
IfcTypeObject type = el.GetDefiningType();
if (allTypes.Remove(type)) //ensure that it is not added twice
{
iGroup.AddObjectToGroup(type);
}
//get all elements of this type
IEnumerable <IfcRelDefinesByType> rels = _model.Instances.Where <IfcRelDefinesByType>(r => r.RelatingType == type);
foreach (var rel in rels)
{
IEnumerable <IfcElement> elemOfType = rel.RelatedObjects.OfType <IfcElement>();
foreach (var item in elemOfType)
{
allElements.Remove(item);
}
}
//IfcObjectDefinition objDef = inst as IfcObjectDefinition;
//if (objDef != null) iGroup.AddObjectToGroup(objDef);
}
}
}
}
//fill the no-group group with elements which are not in any group
foreach (IfcTypeObject element in allTypes)
{
noGroup.AddObjectToGroup(element);
}
return(true);
}
public IfcElementSignature(IfcElement elem, Xbim3DModelContext geometryContext)
{
XbimMatrix3D m3D = XbimMatrix3D.Identity;
if (elem.ObjectPlacement != null)
{
m3D = elem.ObjectPlacement.ToMatrix3D();
}
var geomManager = elem.ModelOf.GeometryManager;
ShapeId = 0;
//get the 3D shape
var shapes = geometryContext.ShapeInstancesOf(elem);
if (shapes.Any())
{
XbimRect3D r3D = XbimRect3D.Empty;
foreach (var shape in shapes)
{
if (r3D.IsEmpty)
{
r3D = shape.BoundingBox;
}
else
{
r3D.Union(shape.BoundingBox);
}
}
XbimPoint3D p3D = r3D.Centroid();
p3D = m3D.Transform(p3D);
BoundingSphereRadius = r3D.Length() / 2;
CentroidX = p3D.X;
CentroidY = p3D.Y;
CentroidZ = p3D.Z;
}
//get the defining type
IfcTypeObject ot = elem.GetDefiningType();
IfcMaterialSelect material = elem.GetMaterial();
//sort out property definitions
List <IfcPropertySet> psets = elem.GetAllPropertySets();
PropertyCount = psets.SelectMany(p => p.HasProperties).Count();
psets.Sort(new PropertySetNameComparer());
foreach (var pset in psets)
{
PropertySetNamesKey ^= pset.Name.GetHashCode();
}
List <IfcPropertySingleValue> props = psets.SelectMany(p => p.HasProperties).OfType <IfcPropertySingleValue>().ToList();
props.Sort(new PropertySingleValueNameComparer());
foreach (var prop in props)
{
PropertyNamesKey ^= prop.Name.GetHashCode();
}
props.Sort(new PropertySingleValueValueComparer());
foreach (var prop in props)
{
PropertyValuesKey ^= prop.NominalValue.GetHashCode();
}
ModelID = elem.EntityLabel;
SchemaType = elem.GetType().Name;
DefinedTypeId = (ot == null ? "" : ot.GlobalId.ToPart21);
GlobalId = elem.GlobalId;
OwningUser = elem.OwnerHistory.LastModifyingUser != null?elem.OwnerHistory.LastModifyingUser.ToString() : elem.OwnerHistory.OwningUser.ToString();
Name = elem.Name ?? "";
Description = elem.Description ?? "";
HasAssignmentsKey = elem.HasAssignments.Count();
IsDecomposedByKey = elem.IsDecomposedBy.Count();
DecomposesKey = elem.Decomposes.Count();
HasAssociationsKey = elem.HasAssociations.Count();
ObjectType = elem.ObjectType ?? "";
MaterialName = material == null ? "" : material.Name;
ReferencedByKey = elem.ReferencedBy.Count();
Tag = elem.Tag ?? "";
HasStructuralMemberKey = elem.HasStructuralMember.Count();
FillsVoidsKey = elem.FillsVoids.Count();
ConnectedToKey = elem.ConnectedTo.Count();
HasCoveringsKey = elem.HasCoverings.Count();
HasProjectionsKey = elem.HasProjections.Count();
ReferencedInStructuresKey = elem.ReferencedInStructures.Count();
HasPortsKey = elem.HasPorts.Count();
HasOpeningsKey = elem.HasOpenings.Count();
IsConnectionRealizationKey = elem.IsConnectionRealization.Count();
ProvidesBoundariesKey = elem.ProvidesBoundaries.Count();
ConnectedFromKey = elem.ConnectedFrom.Count();
ContainedInStructureKey = elem.ContainedInStructure.Count();
}
