On Fri, 2008-08-01 at 13:03 -0700, Karl Newman wrote: > 2008/8/1 Ian Dees <[EMAIL PROTECTED]> > Hi everyone, > > I'm toying with manipulating the planet.osm file, and noticed > that my SAX parser is not giving me hits on the "visible" > attribute (at least for nodes). Is there a default value for > the visible attribute that I should assume when the value > isn't there? > > -Ian > > I'm pretty sure *only* the visible/active elements make it to > planet.osm, and the attribute is omitted because it would be > redundant. It seems likely the Protocol Specification on the Wiki is > incorrect in showing the visible attribute. Maybe that attribute is > used on upload, though; I don't know (seems unlikely, though).
It is relevant in some osm files. The most common example is the data returned from the /history API which shows when an object was deleted: $ wget -q -O /dev/stdout http://api.openstreetmap.org/api/0.5/node/234568/history <?xml version="1.0" encoding="UTF-8"?> <osm version="0.5" generator="OpenStreetMap server"> <node id="234568" lat="38.8853511" lon="-77.0606329" user="tscofield" visible="true" timestamp="2005-11-04T02:22:36+00:00"/> <node id="234568" lat="38.8853511" lon="-77.0606329" user="PeterIto" visible="false" timestamp="2008-05-04T04:45:56+01:00"/> </osm> If it is not present then it is safe to assume a default value of true. Jon _______________________________________________ dev mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/dev
