On 23.12.2014 17:37, Rainer Fügenstein wrote: > mapper A, by means of DGPS, MilStd GPS, crystal ball etc., is able to > achieve an accuracy of, say, a few centimeters and uses it to add new > nodes (POIs) to OSM. > > some time later, mapper B with his/her ancestors mechanical GPS device > (*), achieving an accuracy of max., say, 15 meters, surveys the same > area, figures out that (by his/her point of view) POIs added by mapper > A are 15 meters off and corrects their location. > > what is needed here is some tag, saying "don't touch these > coordinates, they've been surveyed with high(est) accuracy".
I used estimated_accuracy=* or gps_accuracy=* a couple of times, but I doubt that it prevents other mappers from moving or even deleting them. Some use editors like Potlatch, so they are not aware of tags. Some do thousands of edits, all of which are validator based "corrections". They do not ask nor think nor look at tags, except at those reported by the validator. -- Friedrich K. Volkmann http://www.volki.at/ Adr.: Davidgasse 76-80/14/10, 1100 Wien, Austria _______________________________________________ Tagging mailing list Tagging@openstreetmap.org https://lists.openstreetmap.org/listinfo/tagging
