renderer

A renderer defines the rules and symbols used to display the data in a layer. Renderers are used to create specific types of layer visualizations in a map or scene. For feature data, a single symbol can be defined for all features or multiple symbols can be defined based on different attribute values. Applying multiple symbols based on data is also called data-driven visualization. There are three basic types of renderers for feature data: (1) simple renderers style all features with the same symbol, (2) value renders style features based on their value, and (3) class break renderers style features based on ranges of numeric values. For raster data, there are a number of different types of renderers, such as stretch, color ramp, and hillshade.