[mkgmap-dev] [PATCH v2] heed the through_route relation when adjusting turn headings

Sat Feb 20 16:52:50 GMT 2010

Hi Clinton,

> On Feb 12, 2010, at 12:46, Mark Burton wrote:
> 
> >> Is "through route" documented in the OSM Wiki? I was unable to find
> >> any information on this.
> > 
> > Not yet, but it should be. I was rather hoping that some kind person
> > would add a page to the Wiki describing it.
> 
> So about adding this to the Wiki: is there any other information about the through_route relation type, except what has appeared in this mailing list?

No, I discussed it with a few people on the OSM IRC channel but other
than that, I believe our mailing list knows as much about it as anyone.

> Is the node with role "junction" now obsolete, or simply optional?

The node is required but it doesn't have to have a role. The
requirements are that the relation has two members that are ways that
meet at the specified node. None of them need to have roles.

It was originally suggested that the node had role "junction" but I
don't see why that is required.

Cheers,

Mark