Convert Decimal Degree To Radian Snippet

/// <summary>
/// Convert a Decimal Degree to a Radian.
/// </summary>
/// <param name="double_DecimalDegree">A System.Double that is a Decimal Degree value. Example: 180</param>
/// <returns>A System.Double that is a Radina value. Example: 3.14</returns>
/// <remarks></remarks>
public System.Double ConvertDecimalDegreeToRadian(System.Double double_DecimalDegree)
{

  // Create an AngleFormat object and set AngleFormat options through the IAngleFormat interface
  ESRI.ArcGIS.esriSystem.IAngleFormat angleFormat = new ESRI.ArcGIS.esriSystem.AngleFormatClass();

  ESRI.ArcGIS.esriSystem.INumberFormat numberFormat = (ESRI.ArcGIS.esriSystem.INumberFormat)angleFormat; // Explicit Cast

  // Display radian values. A degree-to-radian conversion takes place in the ValueToString method.
  angleFormat.AngleInDegrees = true; //Input values are in degrees
  angleFormat.DisplayDegrees = false; //Display Value in Radians

  System.String string_Radian = numberFormat.ValueToString(double_DecimalDegree);
  System.Double double_Radian = System.Convert.ToDouble(string_Radian);

  return double_Radian;

}

''' <summary>
''' Convert a Decimal Degree to a Radian.
''' </summary>
''' <param name="double_DecimalDegree">A System.Double that is a Decimal Degree value. Example: 180</param>
''' <returns>A System.Double that is a Radina value. Example: 3.14</returns>
''' <remarks></remarks>
Public Function ConvertDecimalDegreeToRadian(ByVal double_DecimalDegree As System.Double) As System.Double

  ' Create an AngleFormat object and set AngleFormat options through the IAngleFormat interface
  Dim angleFormat As ESRI.ArcGIS.esriSystem.IAngleFormat = New ESRI.ArcGIS.esriSystem.AngleFormatClass

  Dim numberFormat As ESRI.ArcGIS.esriSystem.INumberFormat = CType(angleFormat, ESRI.ArcGIS.esriSystem.INumberFormat) 'Explicit Cast

  ' Display radian values. A degree-to-radian conversion takes place in the ValueToString method.
  angleFormat.AngleInDegrees = True 'Input values are in degrees
  angleFormat.DisplayDegrees = False 'Display Value in Radians

  Dim string_Radian As System.String = numberFormat.ValueToString(double_DecimalDegree)
  Dim double_Radian As System.Double = CDbl(string_Radian)

  Return double_Radian

End Function