As explained earlier in the chapter, the MapDemo demo uses the USMAP01 bitmap, which is a map of the United States. This program demonstrates the use of the color matching and drunkard’s walk algorithm techniques for event identification.
The upper New England states (which appear relatively small in the USMAP01 bitmap) are displayed separately in the USMAP02 bitmap and are used to demonstrate the second area-identification algorithm. You can select the USMAP02 image either by clicking on the upper New England states in USMAP01 or through the Map menu.
NOTE
The MapDemo demo is included on the CD accompanying this book, in the Chapter 30 folder.