ArcGIS Developer Help

IMap.MapScale Property

[Visual Basic .NET]
Public Property MapScale As Double

[C#]
public double MapScale {get; set;}

[C++]
HRESULT get_MapScale(
  System.Double* scaleRF
);

[C++]
HRESULT put_MapScale(
  double scaleRF
);

[C++]
Parameters
scaleRF [out, retval]

  scaleRF is a parameter of type double*
scaleRF [in]

  scaleRF is a parameter of type double

Available with ArcGIS Engine, ArcGIS Desktop, and ArcGIS Server.

Scale is the relationship between the dimensions of features on a map and the geographic objects they represent on the earth, commonly expressed as a fraction or a ratio.  A map scale of 1/100,000 or 1:100,000 means that one unit of measure on the map equals 100,000 of the same units on the earth.

The MapScale property is really a shortcut to IDisplayTransformation::ScaleRatio.