Revit MEP API連接器類別

連接器的類別，風管不僅有兩端，可能在曲線上也有。
[TransactionAttribute(Autodesk.Revit.Attributes.TransactionMode.Manual)]
  cmdConnector : IExternalCommand
{
     Result Execute(ExternalCommandData commandData,   messages, ElementSet elements)
    {
        UIApplication app = commandData.Application;
        Document doc = app.ActiveUIDocument.Document;
        Selection sel = app.ActiveUIDocument.Selection;

        Transaction ts =  Transaction(doc, );
        ts.Start();

        Reference refDuct = sel.PickObject(ObjectType.Element, );
        Duct duct = doc.GetElement(refDuct)  Duct;
        ConnectorSetIterator csi = duct.ConnectorManager.Connectors.ForwardIterator();
         iCount = ;
         iEnd = ;
         iCurve = ;
         (csi.MoveNext())
        {
            iCount += ;
            Connector conn = csi.Current  Connector;
             (ConnectorType.End == conn.ConnectorType)            {
                iEnd += ;
            }
              (ConnectorType.Curve == conn.ConnectorType)            {
                iCurve += ;
            }
        }
        TaskDialog.Show(, iCount +  + iEnd +  + iCurve +  + duct.UniqueId);

        ts.Commit();

         Result.Succeeded;
    }
}url:http://greatverve.cnblogs.com/p/revit-mep-api-ConnectorType.html