Vector maps are drawn from mathematical descriptions of locations of geographic features such as shorelines and roads. They don't have the vivid colors of scanned maps, but can be zoomed without being distorted. Vista Road Map and World Map are examples of vector maps. Making a map for Vista is a two step process. First, an image is scanned with a handheld or desktop scanner.
All scanners make compatible files.
Second, the image is converted to a map by entering the location coordinates for at least two points on the map. This may be coordinate data, distance, course, or graphic cross-section of terrain. CDI - course deviation indicator with automatic route sequencing shows position data while following a programmed route. Includes turns, bearings, distance, and estimated time of arrival. It can show terrain ahead from 5 - 300 miles and can be sized on screen.