public BuildingModel GetModel(IModel model, IIfcBuildingStorey ignored = null)
{
Definitions <PropertySetDef> propertyDefinitions = null;
// prepare standard properties dictionary
if (IncludeStandardPsets)
{
switch (model.Header.SchemaVersion.ToLowerInvariant())
{
case "ifc2x3":
propertyDefinitions = new Definitions <PropertySetDef>(Xbim.Properties.Version.IFC2x3);
break;
case "ifc4":
propertyDefinitions = new Definitions <PropertySetDef>(Xbim.Properties.Version.IFC2x3);
break;
default:
break;
}
if (propertyDefinitions != null)
{
propertyDefinitions.LoadAllDefault();
}
}
// cache systems list
//
var elementToSystem = new Dictionary <int, int>();
var systemRels = model.Instances.OfType <IIfcRelAssignsToGroup>().Where(x =>
x.RelatingGroup is IIfcSystem
);
foreach (var systemRel in systemRels)
{
foreach (var relatedObject in systemRel.RelatedObjects)
{
if (elementToSystem.ContainsKey(relatedObject.EntityLabel))
{
continue;
}
elementToSystem.Add(relatedObject.EntityLabel, systemRel.RelatingGroup.EntityLabel);
}
}
// now extract
BuildingModel m = new BuildingModel();
List <IIfcBuildingStorey> storeys = new List <IIfcBuildingStorey>();
List <IIfcSystem> systems = new List <IIfcSystem>();
foreach (var ifcElement in model.Instances.OfType <IIfcElement>())
{
if (CustomFilter != null)
{
var skip = CustomFilter(ifcElement.EntityLabel, model);
if (skip)
{
continue;
}
}
BuildingElement semanticElement = new BuildingElement();
semanticElement.SetBase(ifcElement);
if (propertyDefinitions != null)
{
var thisClass = new ApplicableClass();
thisClass.ClassName = ifcElement.ExpressType.Name;
var applicable = propertyDefinitions.DefinitionSets.Where(x => x.ApplicableClasses.Any(ac => ac.ClassName == thisClass.ClassName));
var psets = ifcElement.IsDefinedBy.Where(x => x.RelatingPropertyDefinition is IIfcPropertySet).Select(pd => pd.RelatingPropertyDefinition as IIfcPropertySetDefinition).ToList();
foreach (var definition in applicable)
{
var matchingSet = psets.Where(x => x.Name == definition.Name).FirstOrDefault();
if (matchingSet == null)
{
continue;
}
var ps = new ElementPropertySet();
ps.propertySetName = matchingSet.Name;
foreach (var singleProperty in definition.PropertyDefinitions)
{
var pFound = GetProperty(matchingSet, singleProperty);
if (!string.IsNullOrWhiteSpace(pFound))
{
ps.properties.Add(new IfcInfo(
singleProperty.Name,
pFound
));
}
}
if (ps.properties.Any())
{
semanticElement.propertySets.Add(ps);
}
}
}
// storeys (prepares list and sets index, data extraction happens later)
semanticElement.ifcStoreyIndex = GetStoreyId(ifcElement, storeys);
if (semanticElement.ifcStoreyIndex == -1)
{
// try through upper level of aggregation (up from the aggregates to the RelatingObject)
//
foreach (var relAggreg in ifcElement.Decomposes.OfType <IIfcRelAggregates>())
{
int found = GetStoreyId(relAggreg.RelatingObject as IIfcElement, storeys);
if (found != -1)
{
semanticElement.ifcStoreyIndex = found;
break;
}
}
}
// systems (prepares list and sets index, data extraction happens later)
if (elementToSystem.ContainsKey(ifcElement.EntityLabel))
{
var systemId = elementToSystem[ifcElement.EntityLabel];
var system = model.Instances[systemId] as IIfcSystem;
if (system != null)
{
int index = systems.IndexOf(system);
if (index == -1)
{
index = systems.Count;
systems.Add(system);
}
semanticElement.ifcSystemIndex = index;
}
}
// now add element
m.elements.Add(semanticElement);
}
// data extraction for the dicionaries happens here
foreach (var storey in storeys)
{
var s = new BuildingStorey(
ToDouble(storey.Elevation)
);
s.SetBase(storey);
m.storeys.Add(s);
}
foreach (var system in systems)
{
var s = new BuildingSystem();
s.SetBase(system);
m.systems.Add(s);
}
return(m);
}
public BuildingModel GetModel(IModel model)
{
// cache systems list
//
var elementToSystem = new Dictionary <int, int>();
var systemRels = model.Instances.OfType <IIfcRelAssignsToGroup>().Where(x =>
x.RelatingGroup is IIfcSystem
);
foreach (var systemRel in systemRels)
{
foreach (var relatedObject in systemRel.RelatedObjects)
{
if (elementToSystem.ContainsKey(relatedObject.EntityLabel))
{
continue;
}
elementToSystem.Add(relatedObject.EntityLabel, systemRel.RelatingGroup.EntityLabel);
}
}
// now extract
BuildingModel m = new BuildingModel();
List <IIfcBuildingStorey> storeys = new List <IIfcBuildingStorey>();
List <IIfcSystem> systems = new List <IIfcSystem>();
foreach (var element in model.Instances.OfType <IIfcElement>())
{
if (CustomFilter != null)
{
var skip = CustomFilter(element.EntityLabel, model);
if (skip)
{
continue;
}
}
BuildingElement el = new BuildingElement();
el.SetBase(element);
// storeys (prepares list and sets index, data extraction happens later)
foreach (var rel in element.ContainedInStructure)
{
if (rel.RelatingStructure is IIfcBuildingStorey storey)
{
int index = storeys.IndexOf(storey);
if (index == -1)
{
index = storeys.Count;
storeys.Add(storey);
}
el.ifcStoreyIndex = index;
}
}
// systems (prepares list and sets index, data extraction happens later)
if (elementToSystem.ContainsKey(element.EntityLabel))
{
var systemId = elementToSystem[element.EntityLabel];
var system = model.Instances[systemId] as IIfcSystem;
if (system != null)
{
int index = systems.IndexOf(system);
if (index == -1)
{
index = systems.Count;
systems.Add(system);
}
el.ifcSystemIndex = index;
}
}
// now add element
m.elements.Add(el);
}
// data extraction for the dicionaries happens here
foreach (var storey in storeys)
{
var s = new BuildingStorey(
ToDouble(storey.Elevation)
);
s.SetBase(storey);
m.storeys.Add(s);
}
foreach (var system in systems)
{
var s = new BuildingSystem();
s.SetBase(system);
m.systems.Add(s);
}
return(m);
}