Hi all,
Since there was no more real discussion, I have decided to also revert
the other two changesets. This means all the heath should re-appear on
the map as it used to be before, except for the single edit by Brian
based on his local knowledge of Snowdonia.
I think the suggestion by one of the list members (was it also Brian?)
to set up some quarterly project to manually review some of the most
obvious potential problematic areas, like Snowdonia, is probably the way
to go now.
If this was done, based on my own review of the data up to now, I would
suggest to deal with the following issues:
1) - Fix JOSM reported geometric issues, like overlaps between areas,
duplicate nodes and possibly intersections.
2) - Merge areas cut up in arbitrary small sections into a single closed
way or multipolygon. This is especially important for point 4), adding
geographic names. With JOSM, the size should probably not be an issue,
since the digitization itself is quite coarse of most areas, so the
total number of nodes to deal with is limited.
3) - Create multipolygons where appropriate, e.g. when there are other
internal landuses or natural features. While I regularly hear people say
"that is a problem of the renderers", I can assure you, not creating
multipolygons and leaving the renderer to guess what needs to go on top,
is really a genuine issue. Having created a renderer myself, I now how
though this is, and it really helps to have multipolygons in appropriate
situations with internal ways.
4) - Add some useful toponyms / names. I noticed that by far the
majority of the areas don't carry a name yet, while I presume many true
heath areas do have a name in reality.
But I will leave this to all you now to decide.
Marco
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