Hi Having done the import for the all of the Worcestershire parishes I will add my views:
It should only be attempted by an experienced mapper who is familiar with revert and other advanced techniques and can follow the guidelines on the wiki. The potential to break something is very great, so I would question making converted data available. Any conversion needs to build the relations so use something like 'ogr2osm' to create .osm files - a conversion to GPX will not do this. Adding data to the map should not be done as a bulk import as there is a lot of existing data - some imported and some traced from old map sources. Any data you import needs to be integrated with existing data. Every boundary will be shared between at least 2 relations and often many more. The 'ogr2osm' conversion produced way segments that had a common shared boundary with another parishes and also produced all the parish level relations. I then just had to give them the right tags - it's much better to get them right in the editor before upload than to have to correct them later. Where parish boundaries were also district, county or region boundaries I elevated the admin level before the import as it made the filtering during the subsequent tidy up process easier. I also created temporary relations for the county level boundaries before import to assist with the later tidy up stage. Some lines on the perimeter of my data needed to be cut where at the 3 county intersections. To do this I need to go back to the original data to find the correct node to use. This was the main reason why I chose to do the whole county in one go to minimise subsequent work at the edges of the area I worked on. I was lucky in Worcestershire as very few parish boundaries were present and they were fairly easy to sort out by deleting those that only had boundary tags and removing boundary tags from shared ways. I made a note of the numbers of all the existing boundary relations in the area before I started work so I could update them with my new data. Where my import matched some one else's import of the district boundary data I usually kept the earlier work but split it into parish segments. The work took many evening and late nights to complete. If anyone wants more specific advice I am willing to provide it - just send me an email. Steve _______________________________________________ Talk-GB mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-gb
