PFMMerger
Merges several maps in PFM format into a single map.
PFMMerger is a command line tool that merges several maps in Polish format (PFM, .mp file) into a single map, adjusting road and node IDs as well as connecting routable roads that cross several maps, assuring route calculation spanning more than one map.
Run PFMMerger without arguments to get help on usage.
The Polish format is a map format used by several software such as cGPSmapper, mkgmap, GPSmapedit, among others.
PFMMerger does not have any dependencies other than Java 1.6...