| Revit 2024 API | 
| SystemCalculationLevel Enumeration | 
| See Also | 
   Enumerated type listing flags that can toggle on or off certain calculations related to MEP systems.
Namespace: Autodesk.Revit.DB.Mechanical
Assembly: RevitAPI (in RevitAPI.dll) Version: 24.0.0.0 (24.0.0.0)
Since: 
   2012
Syntax
| C# | 
|---|
public enum SystemCalculationLevel  | 
| Visual Basic | 
|---|
Public Enumeration SystemCalculationLevel  | 
| Visual C++ | 
|---|
public enum class SystemCalculationLevel  | 
Members
| Member name | Description | 
|---|---|
| All | System calculation is on for everything (with every bit being 1) | 
| None | System calculation is off | 
| Flow | System calculation is only for flow | 
| Volume | This mode is obsoleted in Revit 2017. | 
| Performance | This mode is reserved for limiting the system propagation and other performance-boosting options. Note that the system-related functionalities might be traded off for faster layout capability in large system when this mode is on. Be careful that this mode is NOT included in the "All" mode. |