On Fri, Oct 31, 2008 at 3:19 PM, Stefan de Konink <[EMAIL PROTECTED]> wrote: > Matt Amos wrote: >> would you represent a Y-shaped road as three relations, then? one for >> the left fork, one for the right stem as a way-relation, then another >> to group them together? > > Yes, but with role='independent'. Otherwise the idx of the subtrees would > create a pyramid shape.
i don't understand what you mean by a pyramid shape. the relations would be returned in the same order, regardless of the role tag, right? and you're not merging subtrees...? >> when you say "no need for a specific way renderer" - there is still a >> need, as (in your example) you wouldn't want to render a bunch of >> camping nodes as a linear feature. you'll also want to render >> buildings filled. in other words: there isn't a single, specific way >> renderer anyway because tag inspection is required. > > ... snip... > > In the first version of the RelationOSM thing I created the same thing in > the relationship code, when the api 0.5 was used. If the tag way=true was > present, it would be rendered as <way><nds/></way>. exactly; you do tag inspection. doesn't that require an extra join to distinguish ways from relations of nodes? cheers, matt _______________________________________________ dev mailing list dev@openstreetmap.org http://lists.openstreetmap.org/listinfo/dev
