On Wed, 13 May 2009 15:54:36 +0100, Dave Stubbs osm.l...@randomjunk.co.uk
wrote:
The first thing I thought of when reading this is, to use a relation.
'Relations are not categories' applies to people making relations out of
all hotels or All hotels in London, doesn't really apply here.
On Wed, 13 May 2009 17:08:51 +0200, Ben Laenen benlae...@gmail.com wrote:
I really wouldn't recommend relations for specifying what things are
inside an area. It's a waste of two entire dimensions our dataset
happens to have.
So while it may work for many zonal restrictions to use an area
marcus.wolsc...@googlemail.com wrote:
Sorry to say that but if there are ways within the zone
such as bridges and tunnels that are not affected, then
this is not a zonal restriction at all.
That's ridiculous. It's very possible for a bridge/tunnel to *cross* a
zone, while not being part of
marcus.wolsc...@googlemail.com wrote:
I completely agree here.
A polygon is a simpler, easier to evaluate, to tag and
much, much less error-prone way to do this compared to
a relation that has all ways in that area as members.
Inclusion tests (especially if even a way segment can be
On Thursday 14 May 2009, MP wrote:
Except it's not a geographic area, but rather a set of streets with
that restriction. If a bridge or tunnel without the restriction
goes over/under a street with the restriction you'll have a
problem.
In that case, that bridge can have differen speed
On 14 May 2009, at 11:55, Ben Laenen wrote:
On Thursday 14 May 2009, MP wrote:
[..]
And these situations are more common than you may think. Built-up
areas
are the most common where such a thing happens here as they're of
course the largest kind of zonal restrictions, and each city will
On 30/04/09 13:17, Pieren wrote:
On Wed, Apr 29, 2009 at 8:27 PM, Greg Troxel
and you define the relation to
say that all ways in some area of some type should be in the relation.
You try to use relations to define a category but :
2009/5/13 Rory McCann r...@technomancy.org:
On 30/04/09 13:17, Pieren wrote:
On Wed, Apr 29, 2009 at 8:27 PM, Greg Troxel
and you define the relation to
say that all ways in some area of some type should be in the relation.
You try to use relations to define a category but :
On Wednesday 13 May 2009, Dave Stubbs wrote:
Where zone is a known geographic area?
A bounding way with tags like:
zone = restriction
maxspeed = 20kph
parking = no
seems like the best way to do it to me if you don't want to just
replicate the tags on everything (and I can understand why
Except it's not a geographic area, but rather a set of streets with that
restriction. If a bridge or tunnel without the restriction goes
over/under a street with the restriction you'll have a problem.
In that case, that bridge can have differen speed limits set directly
on the way. Just
On Wednesday 29 April 2009, Tobias Knerr wrote:
Kurt Roeckx schrieb:
I'm looking for a way to map restrictions for a zone. This
includes things like maxspeed, maxweight and parking restriction.
I want to avoid having to place those tags on all the roads inside
the zone, specially for
On Wed, Apr 29, 2009 at 8:27 PM, Greg Troxel
and you define the relation to
say that all ways in some area of some type should be in the relation.
You try to use relations to define a category but :
http://wiki.openstreetmap.org/wiki/Relations/Relations_are_not_Categories
Pieren
I'll focus on the coexistence vs. zone-only aspect, because most of the
other problems can indeed be solved or mitigated by choosing a decent
zone representation and throwing in some editor support and documentation.
Ben Laenen wrote:
- zonal mapping makes it more difficult to write software
On Thursday 30 April 2009, you wrote:
So you assume that well-designed, liberally licensed (!= GPL) Open
Source libraries will exist for all major programming languages and
platforms soon? Well, until then, I'll continue to assume that the
goal of OSM data being used in creative and unexpected
Hi,
I'm looking for a way to map restrictions for a zone. This
includes things like maxspeed, maxweight and parking restriction.
I want to avoid having to place those tags on all the roads inside
the zone, specially for large zones, since it's very easy to forget
one.
What currently comes
What currently comes closest to what I want is an area with a
place= tag, but the meaning of that is not clearly defined,
and you can't do everything with that.
I think what you really want is an implicit relation, where the road
ways inherit maxspeed from the relation, and you define the
Kurt Roeckx schrieb:
I'm looking for a way to map restrictions for a zone. This
includes things like maxspeed, maxweight and parking restriction.
I want to avoid having to place those tags on all the roads inside
the zone, specially for large zones, since it's very easy to forget
one.
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