| Revit 2020.1 API | 
| Face..::..Period Property | 
| Face Class See Also | 
The period of the underlying surface in the specified parametric direction.
Namespace: Autodesk.Revit.DB
Assembly: RevitAPI (in RevitAPI.dll) Version: 20.0.0.0 (20.1.1.1)
 Syntax
Syntax
| C# | 
|---|
| public double this[ int paramIdx ] { get; } | 
| Visual Basic | 
|---|
| Public ReadOnly Property Period ( _ paramIdx As Integer _ ) As Double Get | 
| Visual C++ | 
|---|
| public: property double Period[int paramIdx] { double get (int paramIdx); } | 
Parameters
- paramIdx
- Type: System..::..Int32
 Use 0 for U coordinates and 1 for V coordinates.
Return Value
The real number equal to the period of the underlying surface. Exceptions
Exceptions
| Exception | Condition | 
|---|---|
| Autodesk.Revit.Exceptions..::..ArgumentOutOfRangeException | Thrown when an incorrect coordinate dimension is supplied. | 
| Autodesk.Revit.Exceptions..::..InvalidOperationException | Thrown when this face is not cyclic in the specified direction. |