About that, will there be a tool to look for overlapping corine/old data, so that they can be manually checked ? Or should we just look for corine:reviewed=no tags ?
JOSM highlights tiger:reviewed=no. It would be trivial to implement the same for corine:reviewed=no.
* are relations like http://apidev2.openstreetmap.ie/browse/relation/1405521 one part of the "big meadow polygon covering all of Ireland" you mentioned in a previous email ?
Yes, this is one of the many multipolys resulting from the huge meadow. The expectation is that these odd shapes go away as data is refined over the years and attains more natural boundaries.
* will any and all "landuse=foobar" zones from now on be part of a relation instead of a simple closed way ? Is that so that no gap exist between different landuse= zones ?
The Corine dataset has large polygons with holes which translate into multipolygons in OSM. Chopping up such a multipolygon into several smaller polygons can remove the holes completely and reduce it to a bunch of simple ways. So again, as data is refined over the years, many strange multipolygons may well end up being split into much simpler individual ways. A gap between these can easily be avoided by gluing the shared edges together.
* When we'll manually merge corine and existing data in some area, in the case where the old data is best, should we modify corine data to fit the existing polygon and then remove that one, or delete the corine poly and then incorporate the old poly into the corine multipoly ?
Corine deserves no special treatment or preference over what is already there. If you find that we have a nicer forest or meadow than Corine provides, nuke the Corine one away.
I suppose any edit we make to http://apidev2.openstreetmap.ie/ will be thrown away at import time, so that we can fearlessly play with and break the data ?
Correct. This is a toy import. It is there to play around with. I think you will have to sign up for an account on the apidev2 server before you can make edits though.
- Bartosz _______________________________________________ Talk-ie mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-ie
