This macro will identify contiguous sets of polygons. It marks each polygon with the lowest ID number from among the contiguous group of polygons to which it belongs. The polygons can then be merged into districts using the "Merge By Value" function in the Maptitude GUI.
Free and open source (GPLv3 license).
Location sharing is back in the news as new apps try to offer better mousetraps for sharing oneís location with friends and family. We look at PlaceUs and Jink. Meanwhile two well-known players, LinkedIn and Google, add location sharing where itís not been before. Do these new and enhanced entries suggest location-based services are maturing?