> On Mon, Jun 7, 2010 at 2:18 PM, Ross Scanlon <[email protected]> wrote: > > Each bridge that currently does not have a layer tag would have layer=1 > > added. > > That will be incorrect if a bridge crosses a body of water (or other > object) that has a layer tag other than zero. Which means some > renderers may go from currently rendering something correctly, to > rendering it incorrectly as a result of that change.
And they are possibly rendering incorectly at the moment as it's assuming layer=0. > > Each tunnel that currently does not have a layer tag would have layer=-1 > > added. > > Likewise. Ok. So we add a fixme tag instead and something along the lines of "fixme=Does this need a layer tag?". These show up correctly on keepright and josm validator and are more of a prompt to do something about it. > > The script does the changes in small chunks, (configurable but currently > > set at maximum 100 ways), so it is easy to look through each changeset to > > see what has been added. > > Is anyone planning to do this? You said there are 2500 instances. I > don't think it's reasonable to make a massive change and leave > checking them as an exercise for the reader, without putting in place > some kind of process to actually check them. I intended that if there was a problem then any user could find the changeset easily and then advise me of the problem and I could go back and alter it or they could alter it. It's a lot easier to look through 100 ways than 2500 ways in one change set. > Incidentally: how do current renderers (principally mapnik and > osmarender) currently behave? Are any of these assumed defaults > actually implemented, or have I got my wires crossed? unknown. -- Cheers Ross _______________________________________________ Talk-au mailing list [email protected] http://lists.openstreetmap.org/listinfo/talk-au
