[Tagging] Relation for saying "x is attached to y"?

Steve Bennett stevagewp at gmail.com
Sun Sep 5 08:23:27 BST 2010


On Sat, Sep 4, 2010 at 6:58 PM, Peter Wendorff
<wendorff at uni-paderborn.de> wrote:
> I'm sure, there has to be a way for renderers to collapse parallel ways to
> one - without explicit tagging in the database.
> The railway example is only one of more examples.

Right, to do this well we'd really need to work out some good use cases.

Incidentally, a middle ground option would be to have an relation that
indicates that the two tracks are indeed parallel and form a pair. A
renderer could use that information to compute a middle line when
required.

> If collapsing takes into account the number of collapsed tracks to consider
> it for the signature in the map - even better.

The signature? What do you mean?

Steve



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