Pitney Bowes MapXtreme - Manual (Page 285)

Chapter 14: Using Themes and Legends
Legends Overview
MapXtreme v7.1 292 Developer Guide
Theme Legends
Theme legends provide a key of colors, symbols, and styles used for themes. This key explains
what the colors, symbols, and styles represent.
When to Use a Theme Legend
A theme legend is useful whenever you have a map that contains themes. With a weather map that
displays precipitation, rainfall may be represented by varying shades of green. A theme legend
would be important in visually explaining that the darkest shade of green represents the highest
amount of rainfall while lighter shades represent lower amounts of rainfall.
In the \Samples\Desktop\Features\ThemeLegend folder, we provide a sample application that
demonstrates how to create a ranged theme on a table, create a legend and legend frame for the
them and add it to the map as an adornment.
Cartographic Legends
The cartographic legend class allows you to read and write cartographic legend metadata. The
legend identifies each cartographic feature on the map using text and a style from the metadata.