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ClassBreaksRenderer CoClass

A renderer that can be used to draw graduated color (choropleth) and graduated symbol maps.

Product Availability

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

Description

Use a ClassBreaksRenderer to symbolize quantitative information about feature data. Class breaks symbology divides the range of feature values into a relatively small number of classes. For example, you can use a ClassBreaksRenderer to symbolize features by population value, dividing the features into three classes of low, medium, and high population value.
One symbol is associated with each class, and it is used to draw features in the class. For example, with a polygon feature class, a yellow fill symbol can represent low population, orange fill can represent medium population, and red fill can represent high population.
The ClassBreaksRenderer works well also with other feature types. For example, a line feature class representing roads with associated numeric values for traffic density can be rendered using different colors for high, medium, and low traffic. Also, city points can be classified with a range of circular marker symbols with different sizes or colors (or both) based on population.
Classes are defined by specifying the break values between the classes. You can set class breaks manually to define these classes, or you can generate a list of class breaks using IClassify and one of the ESRI classification objects (e.g. Quantile, NaturalBreaks). Use a histogram objects (e.g. TableHistogram, BasicTableHistogram, DataHistogram) to set data to a classification object.

Supported Platforms

Windows, Solaris, Linux

Interfaces

Interfaces Description
IBarrierProperties2 Provides access to members that control how objects (text, features, graphics) act as barriers for labelling with the cancel tracker.
IClassBreaksRenderer Provides access to members that control a renderer which is used to draw graduated color (choropleth) and graduated symbol maps.
IClassBreaksUIProperties Provides access to members that control some user interface properties of a ClassBreaksRenderer. The properties set through this interface do NOT affect what is drawn on the map.
IDataExclusion Provides access to members that control the exclusion of data values from a renderer.
IDataExclusion2 Provides access to members that control the exclusion of data values from a renderer.
IDataNormalization Provides access to members that control the data normalization properties of a renderer.
IDataSampling Provides access to members that control the data sampling properties of a renderer.
IExportSupport Provides access to export support members.
IFeatureRenderer Provides access to members that control functionality common to all feature renderers.
ILegendInfo Provides access to members that control legend information provided by a renderer.
ILevelRenderer Provides access to members that control the drawing of symbols for features, where symbols are separated into levels, and each level drawn separately.
ILookupSymbol Provides access to functionality for looking up a renderer's symbol via a feature.
IPersist Defines the single method GetClassID, which is designed to supply the CLSID of an object that can be stored persistently in the system. IPersist is the base interface for three other interfaces: IPersistStorage, IPersistStream, and IPersistFile.
IPersistStream (esriSystem)
IRendererClasses Provides access to members that provides the information of layer annotation classes.
IRotationRenderer Provides access to members that control the drawing of rotated marker symbols based on field values.
IXMLSerialize (esriSystem) Provides access to members that XML serialize and deserialize an object to/from XML.
IXMLVersionSupport (esriSystem) Provides access to members that help in serializing an object to different namespaces (versions).

See Also

ClassBreaksRenderer Class | StandardDeviation Class | DefinedInterval Class | Quantile Class | EqualInterval Class | NaturalBreaks Class