private System.Collections.Generic.IEnumerable <IntPtr> findEntity(IntPtr entities, IntPtr entityCount)
{
for (int iEntity = 0; iEntity < entityCount.ToInt32(); iEntity++)
{
IntPtr iEntityInstance = IntPtr.Zero;
_ifcEngine.GetAggregationElement(entities, iEntity, IfcEngine.SdaiType.Instance, out iEntityInstance);
yield return(iEntityInstance);
}
}
private void RetrieveObjects(IntPtr ifcModel, string sObjectSPFFName, string ObjectDisplayName)
{
IntPtr ifcObjectInstances = _ifcEngine.GetEntityExtent(ifcModel, ObjectDisplayName),
noIfcObjectIntances = _ifcEngine.GetMemberCount(ifcObjectInstances);
if (noIfcObjectIntances != IntPtr.Zero)
{
IFCItem NewItem = null;
if (_rootIfcItem == null)
{
_rootIfcItem = new IFCItem();
_rootIfcItem.CreateItem(null, IntPtr.Zero, "", ObjectDisplayName, "", "");
NewItem = _rootIfcItem;
}
else
{
IFCItem LastItem = _rootIfcItem;
while (LastItem != null)
{
if (LastItem.next == null)
{
LastItem.next = new IFCItem();
LastItem.next.CreateItem(null, IntPtr.Zero, "", ObjectDisplayName, "", "");
NewItem = LastItem.next;
break;
}
else
{
LastItem = LastItem.next;
}
}
;
}
for (int i = 0; i < noIfcObjectIntances.ToInt32(); ++i)
{
IntPtr ifcObjectIns = IntPtr.Zero;
_ifcEngine.GetAggregationElement(ifcObjectInstances, i, IfcEngine.SdaiType.Instance, out ifcObjectIns);
IntPtr value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "GlobalId", IfcEngine.SdaiType.Unicode, out value);
string globalID = Marshal.PtrToStringUni((IntPtr)value);
value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "Name", IfcEngine.SdaiType.Unicode, out value);
string name = Marshal.PtrToStringUni((IntPtr)value);
value = IntPtr.Zero;
_ifcEngine.GetAttribute(ifcObjectIns, "Description", IfcEngine.SdaiType.Unicode, out value);
string description = Marshal.PtrToStringUni((IntPtr)value);
IFCItem subItem = new IFCItem();
subItem.CreateItem(NewItem, ifcObjectIns, ObjectDisplayName, globalID, name, description);
}
}
}
private void CreateProjectTreeItems()
{
var iEntityID = IFCEngine.GetEntityExtent(IfcModel, "IfcProject");
var iEntitiesCount = IFCEngine.GetMemberCount(iEntityID);
for (int iEntity = 0; iEntity < iEntitiesCount.ToInt32(); iEntity++)
{
IFCEngine.GetAggregationElement(iEntityID, iEntity, IfcEngine.SdaiType.Instance, out IntPtr iInstance);
IFCTreeItem ifcTreeItem = new IFCTreeItem();
ifcTreeItem.instance = iInstance;
CreateTreeItem(null, ifcTreeItem);
AddChildrenTreeItems(ifcTreeItem, iInstance, "IfcSite");
}
}