Hi Marcus. I don't know how other people use it, and I've not uploaded my data because of many small problems with historic mapping. But I have a handfull of historic buildings in Stockholm that I will upload sometime in the future.
For the buildings I use start_date=1790 end_date=1810 http://wiki.openstreetmap.org/wiki/Key:start_date I also use free form tagging, these need to be more formal. note="just gone from map" note="demolished" note="burned down" I do not map changes to the buildings, e.g. * reconstructions and additions. * church => night club * relocations I've tried to map name changes, But it's clunky. name:1790="Frömans krog" I find it hard to verify facts, I should have added source on every feature I mapped, I've tried source=, but these tags are sometimes out of sync with the data. source="map xx from 1624" source:url=* It will probably take a while before I upload/share my meager data collection, mostly because of it being hard work with all sources, projections and unexplained peculiarities. I have no renderers for the data yet, except some manual one year snapshot with either JOSM or postgres + openlayers. On Wed, May 15, 2013 at 6:50 PM, Marcus Koenig <[email protected]> wrote: > Hi, > > I'm very interested in the OHM project and I would like to contribute data > for Mainz, Germany. In the long run I would like to create a map of the city > before the destructions during WW2, but also of earlier periods. I have had > a look at the OHM Sandbox, but I couldn't find out where the time dimension > comes in. How do you tag and display temporal information? The map would > have to change with time settings - eventually? I'd really appreciate if > anyone could give me a short insight into the current state of the project. > > Best regards > > Marcus König > > > _______________________________________________ > Historic mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/historic > -- /emj _______________________________________________ Historic mailing list [email protected] http://lists.openstreetmap.org/listinfo/historic
