The shape points combine with the nodes to form the segments that make a complete chain. Network Chains - A chain that explicitly references start and end nodes and not left and right polygons. GT-polygons are elementary polygons that are mutually exclusive and completely exhaust the surface. Mature and impressive. The package also contains a number of stand alone applications for building maps, scalebars and legends offline.
Impressive screen shots.
The scanned image includes all map collar information. The image inside the map neatline is georeferenced to the surface of the Earth. They distribute a geodetic model and encoding system which is international in scope, hierarchical in structure and inclusive of many cartographic options and variables.