private void Intialize()
{
Version = new IfVersion(this);
if (IfBuildings != null)
{
return; //check if there is already buildings return
}
IfBuildings = IfBuilding.GetBuildings(this);
IfUnit = new IfUnit(this);
}
public static List <IfBuilding> GetBuildings(IfModel ifModel)
{
List <IfBuilding> ifBuildings = new List <IfBuilding>();
IfBuilding ifBuidling;
foreach (var building in ifModel.IfcStore.Instances.OfType <IIfcBuilding>())
{
ifBuidling = new IfBuilding(ifModel)
{
IfcBuilding = building,
IfModel = ifModel
};
ifBuildings.Add(ifBuidling);
}
return(ifBuildings);
}
public static IfModel New(string projectName, string buildingName, bool save, string filepath = "Untitled")
{
//first we need to set up some credentials for ownership of data in the new model
var credentials = new XbimEditorCredentials
{
ApplicationDevelopersName = "ITI ",
ApplicationFullName = " ",
ApplicationIdentifier = " ",
ApplicationVersion = "1.0",
EditorsFamilyName = "ITI ",
EditorsGivenName = "ITI ",
EditorsOrganisationName = " ITI"
};
//now we can create an IfcStore, it is in Ifc4 format and will be held in memory rather than in a database
//database is normally better in performance terms if the model is large >50MB of Ifc or if robust transactions are required
var model = IfcStore.Create(credentials, IfcSchemaVersion.Ifc4, XbimStoreType.InMemoryModel);
IfModel ifModel = new IfModel(model);
//Begin a transaction as all changes to a model are ACID
using (var txn = model.BeginTransaction("Initialise Model"))
{
//create a project
var project = model.Instances.New <IfcProject>();
//set the units to SI (mm and metres)
project.Initialize(ProjectUnits.SIUnitsUK);
project.Name = projectName;
//now commit the changes, else they will be rolled back at the end of the scope of the using statement
txn.Commit();
}
if (save)
{
model.SaveAs(filepath);
}
ifModel.IfBuildings.Add(IfBuilding.New(ifModel, buildingName));
return(ifModel);
}
public static IfBuilding New(IfModel ifModel, string name)
{
IfBuilding ifBuilding = new IfBuilding();
var model = ifModel.IfcStore;
using (var txn = model.BeginTransaction("Create Building"))
{
var building = model.Instances.New <IfcBuilding>();
building.Name = name;
building.CompositionType = IfcElementCompositionEnum.ELEMENT;
var localPlacement = model.Instances.New <IfcLocalPlacement>();
building.ObjectPlacement = localPlacement;
var placement = model.Instances.New <IfcAxis2Placement3D>();
localPlacement.RelativePlacement = placement;
placement.Location = model.Instances.New <IfcCartesianPoint>(p => p.SetXYZ(0, 0, 0));
var project = model.Instances.OfType <IfcProject>().FirstOrDefault();
project?.AddBuilding(building);
txn.Commit();
//set the Ifcbuilding
ifBuilding.IfcBuilding = building;
}
return(ifBuilding);
}
