+1 This is the point
Am 12.10.10 22:33, schrieb Alan Millar:
Frankly, one of the main problems with the classic GIS "shapefile"-style data paradigm is that it does not give you good topological connectivity information, and therefore is inadequate for OSM's multi-use data model. If you think topology can be inferred or derived from position, check out the various list archives for discussions on duplicate node removal, powerlines, and layers. You'll find a lot of good information on it. - Alan
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