On 1/3/11 6:25 PM, Kurt Roeckx wrote:
On Mon, Jan 03, 2011 at 03:24:34PM -0600, Toby Murray wrote:
On Mon, Jan 3, 2011 at 3:12 PM, Kurt Roeckx<[email protected]> wrote:
Having a node to indicate the center of a town/city/... can be
useful too, even if you already have a boundary for it.
It seems like duplicate information to me. Like mapping a walmart with
both a building outline tagged as a shop and a point in the middle
tagged the same way. What do you define as the "center" of a town? If
it is just the centroid of the border polygon then this can be
determined from the boundary. If you mean the central business
district or town hall, then that should be mapped appropriately with
landuse and building polygons.
The center is ussually a market place or the church or something
like that. It's ussually where the oldest building are and the
rest was build around it. It has nothing to do with the centre
of the admin level boundary, but might be the center of one
of the various landuses. It's the place where I expect the
name of the place to be on the map. It's not always a very
specific place, but ussually a rather small area.
it's still duplication. what i'd suggest is perhaps a "centroid" role
in the boundary relation, which can be a node representing
the mythical "center" of the bounded area.
what i see a bit right now in the US are places where we have
a central node from one import and a boundary with the same
name from another, and as a result two names showing up.
it's mildly annoying.
richard
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