IClassBreaksRenderer.NormField Property

Normalization field.

[Visual Basic .NET]
Public Property NormField As String

[C#]
public string NormField {get; set;}

[C++]
HRESULT get_NormField(
  BSTR* Field
);

[C++]
HRESULT put_NormField(
  BSTR Field
);

[C++]

Parameters
Field [out, retval]
  Field is a parameter of type BSTR
Field [in]
  Field is a parameter of type BSTR

Product Availability

Description

NormField is the field that contains the values that the Field values will be divided by to produce the symbolization.

Remarks

Normalizing, i.e. dividing, by a field is the most common way to normalize data for a ClassBreaksRenderer. In general, mapping of ratios or densities is preferrable to mapping counts and a NormField can be used to generate these types of values. Normalize by an area field to represent a density, or normalize by another field with the same units as the values in Field to produce a rate. For example, to map a rate set Field to a field that stores the count of hispanic persons, and set NormField to a field that stores total persons.

Setting NormField is the same as setting IDataNormalization::NormalizationField and setting IDataNormalization::NormalizationType to esriNormalizeByField. You can use IDataNormalization to do other types of normalization.

See Also