I think start_date (accompanied by end_date) might be what you are looking for. http://wiki.openstreetmap.org/wiki/Key:start_date http://wiki.openstreetmap.org/wiki/Key:end_date
AlfonZ On Fri, Sep 24, 2010 at 10:53 AM, Eric Jarvies <[email protected]> wrote: > I agree. I have often thought one of the things OSM is really missing is a > TIMELINE feature, wherein users can slide the timeline to any point in time, > and see how the map looked at that point in time. This of course would > require the type of tagging you mention below, as to not to be confused with > when the content was entered into OSM, but rather, when the actual park or > building was started(to be built), and was finished(being built), for > example. > > Eric Jarvies > > On Sep 24, 2010, at 2:36 AM, Xan wrote: > > > Hi, > > > > Is there any tag for say "I saw this thing in this date"? I think it's > useful for knowing when things are change. I explain: we have tag data for > tagging the date of construction or date when the things are finished. > > > > But suppose we have a park. One user tags all of its parts (in > 2010-09-24). It's perfect and there is no missing thing. One month after, in > this park, the Administration adds a playground. Another user adds this > playground (in 2010-11-24). Could these users see "I-see-in=2010-09-24" and > "I-see-in=2010-11-24"? > > > > This is different from a user tagging this park uncompletely in > 2010-09-24 and another user completes the tag in 2010-09-25. Because the > "version" of the park in this case is the same. > > > > So, "I-see-in" could provide information about if the things change or > there are new elements. > > > > Regards, > > Xan. > > > > _______________________________________________ > > newbies mailing list > > [email protected] > > http://lists.openstreetmap.org/listinfo/newbies > > > > > > _______________________________________________ > newbies mailing list > [email protected] > http://lists.openstreetmap.org/listinfo/newbies >
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