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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).
Moshe Haspel
oucp.emory.edu
Is it time for a global licensing framework for geospatial data? The GSDI Legal and Economic Working group thinks so and offered a presentation and a way forward at the GSDI 13 conference held in Quebec City in May. The effort aims to harmonize existing licensing without changing fundamental access policies and funding models and be compatible with the diferences in national legal systems. That's a tall order, but an important one as the world moves toward geodata sharing. Geoff Zeiss reports.