Ilya, That is an amazing piece of work. This will be something I use very, very often. Thanks!
On Sat, Sep 29, 2012 at 2:24 AM, Ilya Zverev <zve...@textual.ru> wrote: > Hi! > > For a long time now, there has been no tool to properly monitor an area. > Essentially the only way of doing it is to filter changeset history by bbox > (thanks to Pavel for his RSS filter btw). OWL has been turned off, ITO-like > visualizations are pretty but unuseful. The simple question "who has deleted > my road?" turned out to be very hard to answer. > > But there has been a simple solution, that I'm amazed no one has come to > before. To cut long story short, I present to you the service to answer the > frequently asked question: WHO DID IT? > > http://zverik.osm.rambler.ru/whodidit/ > > It basically downloads hourly replication diffs and stores information on > affected 0.01-degree tiles, along with extra information, like user name or > a number of modified objects. Then it is possible to do some analysis of > that data, to rid users of doing it themselves: which changesets should they > pay most attention to, where was anything deleted, and which tiles have only > got new data. > > Obviously this service relies only on nodes: other objects do not have > spatial information on them in diffs; querying the server every time is > expensive, and keeping minutely planet database is no less costly. I've > preloaded WHODIDIT with the data since 1st of July, and it's only one > gigabyte per three months of changes (half of which are indices). Yes, you > can see what redaction bot has touched. > > Also it allows to make RSS feed similar to OWL's. I think everything is > pretty straightforward, and there is an instruction picture: > > http://zverik.osm.rambler.ru/whodidit/wdi_guide.gif > > The source is licensed WTFPL, and it should be very easy to set up, for > example, a mirror or a regional version of this service. It's entirely in > Perl/PHP/MySQL. Check it at https://github.com/Zverik/whodidit > > Oh, and if you see no tiles, try zooming in, levels 12-13 should have > everything. I've not yet figured how to pass error messages to the > front-end, so there is no helpful message. > > Thanks, > IZ > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/listinfo/talk -- martijn van exel http://oegeo.wordpress.com _______________________________________________ talk mailing list talk@openstreetmap.org http://lists.openstreetmap.org/listinfo/talk
