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();
}
