On 14/04/19 08:37, Peter Elderson wrote:
Loose guidepost nodes are a nuisance when processing route relations
by hand or by software. On the other hand, you might argue that most
routes are nothing else than imaginary lines between guideposts.
But I would say, practically, guideposts do not need to be in the
route relation. If a guidepost is part of a route, it is also part of
a way so the point location is already in there. No need to add it again.
A way can be used by several routes. The guidepost may only point or
confirm one of those routes. Unless it is in the route relation it
cannot be assumed to be part of that route.
You could simply take an existing node or add one on the existing way,
add some tags to it, if you want to enable special rendering or
processing. If it's not on a way, it's also not part of a route. It
just happens to be near.
How close to the way does a node have to be to be considered as "on a
way" ??
Usually a guide post is not centred in the way but off to one side so it
can be mapped as a separate node that is not connected to the way, this
provides more information and maps the truth compared to simply placing
the node on the way.
Vr gr Peter Elderson
Op za 13 apr. 2019 om 20:52 schreef Martin Koppenhoefer
<[email protected] <mailto:[email protected]>>:
sent from a phone
> On 13. Apr 2019, at 12:06, Volker Schmidt <[email protected]
<mailto:[email protected]>> wrote:
>
> But your example is different. You put the function into the
name field. For me the role of an object tagged
information=guidepost is exactly that, a guidepost. I am sure I
am missing something, otherwise it would not have 50k uses.
I guess people are putting the guideposts into the relations
because they feel they belong to the route, and they add the role
so it becomes evident in the relation editor why there are node
members.
It doesn’t seem to create problems, but it also doesn’t seem to
add anything (provided there would not be objects acting as
guideposts that aren’t guideposts)
Cheers, Martin
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