That link is broken. Try: http://wiki.openstreetmap.org/index.php/Relations and http://wiki.openstreetmap.org/index.php/OSM_Protocol_Version_0.5
On Thu, Apr 24, 2008 at 9:19 PM, Dave Stubbs <[EMAIL PROTECTED]> wrote: > On Thu, Apr 24, 2008 at 12:22 PM, Lester Caine <[EMAIL PROTECTED]> wrote: > > Jeffrey Martin wrote: > > > I've made a decision for what I am going > > > to do. > > > > > > If I wait until there is some standard way > > > it will be a hassle to find all these stops > > > later instead of putting them in now > > > with all the other data, and I might loose > > > my little scraps of paper. > > > > > > Here's my plan of action. I'm going to put > > > a node on the exact location of each > > > bus stop offset from the way. I don't want > > > to loose that location data until I'm sure we > > > want to throw it out. Putting a node on the > > > way instead would essentially erase the location > > > of the stops and shelters. > > > > > > If someone wants to come along later and put > > > a node on the way or make some kind of association > > > they can do that. > > > > That does seem to be the sensible way of doing it, in the absence of any > other > > guidelines. What of cause is missing is some means of relating it easily > to > > the way that then are actually linked to ? > > > > A nice 'is_in' link to the 'unique_id' of the way so that one can > actually > > find all the bus stops on a route ;) Looking at the way things have > developed, > > is there any reason we can't set a tag for is_in, and then select a way, > so > > that the key becomes is_in=#xxxxxxxx ? > > > > I don't think Relations has the necessary structure yet to be useful > here? > > If you want to link two nodes together, then the easiest most obvious > way of doing it is to use a way. A way is an object that links two or > more nodes afterall. > If you want to link a node and a way, the a relation is your tool. > This is exactly what relations do, they link and relate objects -- the > advantage over putting IDs in tags is that any editor that supports > relations in general will know about the connection as will the API, > and the DB can maintain referential integrity so you don't end up with > hanging links. > > You can do nice things with the API such as > http://api.openstreetmap.org/api/0.5/way/<way_id>/relations -- which > tells you what relations the way belongs to. > > Dave > > _______________________________________________ > talk mailing list > talk@openstreetmap.org > http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk > -- http://bowlad.com
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