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| ArcObjects Help for .NET developers > ArcObjects namespaces > DataSourcesRaster > ESRI.ArcGIS.DataSourcesRaster > Interfaces > IP > IPolynomialXform Interface > IPolynomialXform.GetSystemRMS Method (ArcObjects .NET 10.5 SDK) | 
Gets the system RMS.
[Visual Basic .NET] Public Function GetSystemRMS ( _ ByVal direction As esriTransformDirection _ ) As Double
[C#] public double GetSystemRMS ( esriTransformDirection direction );
[C++]
HRESULT GetSystemRMS(
  esriTransformDirection direction,
  double* rms
);
[C++]
Parameters direction [in]
direction is a parameter of type esriTransformDirection rms [out, retval] rms is a parameter of type double