Am 30.11.2012 11:57, schrieb Pieren:
On Fri, Nov 30, 2012 at 11:41 AM, Martin Koppenhoefer
<dieterdre...@gmail.com> wrote:
not a good idea IMHO, as it makes editing far more complex (you will
have to understand from just a collection of nodes which ways are
effectively part of a route relation).
Not necessarily. Creating routes will be more or less the same if your
editor highlights the ways between the nodes. But their are three
advantages : intersection nodes are quite stable in OSM, more than
single nodes or ways. Adding hundreds routes will not disturbe normal
edits. And last but not least, routes will not have to split ways just
because a bus is turning left or right at intersection.
There are several problems. To draw the route in editor you need at
least two nodes in your downloaded data. Then editor have to guess,
which ways are should used for the route.
Eg.:
___D___
/ \
| |
---A---C---B----
Which way should editor display? Direct one or longer one?
If some adds a way between D and C and doesn't care about all relation
(editor cant display every route), it gets even unclearer, which way
belong to the route. In actual schema there will be at least A-C, C-B,
A-D or D-B and it's possible to fix the route quite easy.
Implications aren't a better way, it's mainly guessing.
Henning
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