/// <summary>
/// Adds an element type to the object if it doesn't already have one, return the new or existing relationship that holds the type and this element. If there is a relationship for this type but this element is not related it adds it to the exosting relationship
/// </summary>
/// <param name="theType"></param>
/// <returns></returns>
public IfcRelDefinesByType AddDefiningType(IfcTypeObject theType)
{
var typedefs = Model.Instances.Where <IfcRelDefinesByType>(r => r.RelatingType == theType).ToList();
var thisTypeDef = typedefs.FirstOrDefault(r => r.RelatedObjects.Contains((this)));
if (thisTypeDef != null)
{
return(thisTypeDef); // it is already type related
}
var anyTypeDef = typedefs.FirstOrDefault(); //take any one of the rels of the type
if (anyTypeDef != null)
{
anyTypeDef.RelatedObjects.Add(this);
return(anyTypeDef);
}
var newdef = Model.Instances.New <IfcRelDefinesByType>(); //create one
newdef.RelatedObjects.Add(this);
newdef.RelatingType = theType;
return(newdef);
}
public override void Parse(int propIndex, IPropertyValue value, int[] nestedIndex)
{
switch (propIndex)
{
case 0:
case 1:
case 2:
case 3:
base.Parse(propIndex, value, nestedIndex);
return;
case 4:
_relatedObjects.InternalAdd((IfcObject)value.EntityVal);
return;
case 5:
_relatingType = (IfcTypeObject)(value.EntityVal);
return;
default:
throw new XbimParserException(string.Format("Attribute index {0} is out of range for {1}", propIndex + 1, GetType().Name.ToUpper()));
}
}