电缆桥架CableTray与风管一样是曲线几何。

using Autodesk.Revit.DB.Electrical;

namespace RevitCodes

{

    [Transaction(TransactionMode.Manual)]

    [Regeneration(RegenerationOption.Manual)]

    

public 

class cmdTest20110905 : IExternalCommand

    {

        

public Result Execute(ExternalCommandData cmdData, 

ref 

string messages, ElementSet elements)

        {

            UIDocument uiDoc = cmdData.Application.ActiveUIDocument;

            

//

电缆桥架

            

//

BuiltInCategory.OST_CableTray;

            Transaction ts = 

new Transaction(uiDoc.Document, 

"

电缆桥架

");

            ts.Start();

            Reference refCable = uiDoc.Selection.PickObject(ObjectType.Element, 

"

选择一个桥架

");

            CableTray cableTray = uiDoc.Document.GetElement(refCable) 

as CableTray;

            LocationCurve lCurve = cableTray.Location 

as LocationCurve;

            

if (lCurve != 

null)

            {

                TaskDialog.Show(

"

curve

", lCurve.Curve.Length.ToString());

            }

            ts.Commit();

            

return Result.Succeeded;

        }

    }

}

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