public static void Run(StepModel model)
{
var toDelete = Array.Empty <IPersistEntity>()
.Concat(model.Instances.OfType <IIfcRelDefinesByProperties>())
.Concat(model.Instances.OfType <IIfcPropertySetDefinition>())
.Concat(model.Instances.OfType <IIfcPropertyAbstraction>())
.ToArray();
model.Delete(toDelete, true);
}
public void BatchDelete()
{
const string file = @"TestFiles\\4walls1floorSite.ifc";
using (var model = new StepModel(ef2x3))
{
model.LoadStep21(file);
var products = model.Instances.OfType <IfcProduct>().ToArray();
var w = Stopwatch.StartNew();
model.Delete(products, true);
w.Stop();
Console.WriteLine($"Deleted {products.Length} in {w.ElapsedMilliseconds}ms");
var check = model.Instances.OfType <IfcProduct>().ToArray();
Assert.AreEqual(0, check.Length);
var propRels = model.Instances.OfType <IfcRelDefinesByProperties>();
Assert.IsTrue(propRels.All(r => r.RelatedObjects.Count == 0));
}
}