OpenStreetMap
I have different own POI databases that I like to merge with OSM data. I have converted my data to OSM XML files and megr them with osmosis. So far it works, but I wonder if there are any restrictions to the node ID number. Which number ranges are safe to use and will never have a conflict with extracts frm planet.osm file?
PS: the additional data I use are SRTM contours, geocache way-points and other location based POIs. I pack it into GPSmid on my phone.
Discussion
Comment from iandees on %დ %თ %წ at %ს:%წ
Data that has not been loaded into the OSM database yet should use negative ID numbers. There are no "safe" positive ID ranges as they will all be used eventually.
Comment from onion on %დ %თ %წ at %ს:%წ
Use negative numbers in your generated file. Then for example load in with josm, upload and now save the osm file, then you should have proper id numbers if that is all you need.