[Talk-us-massachusetts] more on Lynn Woods

[Greg Troxel]

I think you should not be using landuse objects as part of a landcover
relation, and if you avoid that you will have vastly less trouble.  I
can see your point that they happen to line up precisely in this place,
right now, but in general they don't, and they don't reliably move
together over time.   Anybody adjusting one thing will change the
other.  Future validators that complain about landuse/landcover on same
objects will object.

Are you really using the entire way that is the reserveration boundary
as outer for natural=wood, even though there are significant parts where
that just isn't so?  That seems wrong.  I suspect you are running into
odd cases and bugs, and my advice is don't do that.

If you want to reuse specific parts of the boundary in the outer, when
it is really the case that the woods line and the boundary match (I
still think this should not happen), then you could

  - create a relation for the outer boundary, with one component the
    current closed way
  - same thing on golfcourse
  - split the ways where the sameness changes
  - add the way pieces to the woods outline relation, so the closed way
    thus represented has woods to the inside and !woods to the outside
    all all along it

  - figure out if

      relation: tag woods
        outer: relation, no tags
           members: a bunch of ways, individually not closed, together
           closed
        inner:
            relations which have way segments as members
            regular ways e.g. pond, swamp

    really works in the render toolchains.  After concluding it doesn't,
    just draw ways, perhaps reusing nodes for the landcover and don't
    try to reuse ways.  You'll be done before you would have figured out
    the relation stuff.  While you can argue that it ought to work, OSM
    has grown organically rather than with formal semantics and when you
    are too far outside existing practice things break.   You have
    arrived, I think :-)
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