On 21/01/11 13:03, Steve Bennett wrote:
On Fri, Jan 21, 2011 at 11:11 AM, 4x4falcon<[email protected]> wrote:
Problem with option 3 is that if nodes are the same you end up with a major
duplicate node issue and if it comes to editing either then newbies tend to
get it wrong. If the nodes are joined then you end up with a duplicate way
issue.
I was assuming the nodes are joined. In what way are co-linear
("duplicate") ways an "issue"? I wasn't aware there were any problems
with the practice?
It's a gives a validator warning if only for a small section eg two
nodes joined.
However it still becomes difficult to edit either way if they are
co-linear especially with the nodes joined.
And I wouldn't describe two partially co-linear ways as duplicate,
especially if they have different tags as in this case.
It means that the ways are duplicated not necessarily the tags.
They only need to be beside each other not massive distances away, this is
also easy to do using copy and paste in josm.
I'm not familiar with JOSM's editing, but I was thinking of Potlatch's
"parallel ways" tool. If you just copy and paste a wiggly line at an
offset, it will intersect with the original. Potlatch's tool actually
shrinks the "inside" way so that doesn't happen.
In most cases you can do the same with cut and paste in josm but there
is a parallel tool plugin as well.
cheers
Ross
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