[OSM-talk] Tagging hierarchies

[80n]

On Jan 13, 2008 10:39 PM, Robin Paulson <robin.paulson at gmail.com> wrote:

> On 14/01/2008, Alex Mauer <hawke at hawkesnest.net> wrote:
> > Robin Paulson wrote:
> > > the point i'm trying to get across, is that all water features, be
> > > they linear (rivers, canals, stream) or areas (lakes, reservoirs) or
> > > whatever would benefit from being under _one_ top-level tag, for
> > > consistency.
> >
> > Hmm, are you sure?  Is it easy for a renderer to differentiate a linear
> > feature from an area without a distinct tag?  I don't think it could be.
>
> yes, of course - in exactly the same way as you can differentiate a
> square, triangle or circle drawn on paper, from a line
>
> areas must form complete loops, otherwise they are treated as ways by
> the renderer
>

This is not true.  Osmarender does not require areas to be closed in order
to render them.  It automatically joins the last node to the first node if
it has been asked to render an area.

80n


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