2008/5/30 Mark Williams <[EMAIL PROTECTED]>: > This is another Potlatch grumble - but it's not really Potlatch, it's the > internet. > > I just found a whole lot (really, a lot) of overlapping ways with some > really old data (Potlatch alpha & before) buried under new versions from > Potlatch v0.6a & 0.8 - for instance, the M25 Junction 30 had 3 (three!!) > layers of roundabout in places. 2 hours has seen most of it off... I wonder > how much of other peoples' time I just deleted?
i had a similar problem near me recently. i had a lot of streets that had been 'helpfully' drawn, without tags, in small, unjoined segments. after i mapped the area in question, i merged all the relevant segments and tagged them as appropriate (all in potlatch, approx. version 0.9a i think). i was looking at the rendering the next day, and realised that when they'd been merged, a new long road had been created, but the original short pieces had not been deleted - not at all what i had imagined would happen, and surely not intentional. i guess this is what happened here with your m25 problems maybe we need an extra warning category in maplint, to indicate duplicate ways - i.e. using the same nodes and having the same tags? > > I can't imagine this was done knowingly; I suspect that the redraw was > sufficiently slow that it looked unmapped to a less experienced user, and > allowed time to re-draw the ways before it showed up. > > Would it be possible to make it draw ways & nodes BEFORE the aerial > photography, so this can't happen is less likely? I had assumed that having > to move from the map to the editor would prevent this, but I think folk are > scrolling miles & never seeing the rendered version. Maybe a slippy map > under the photography? Or make it impossible to add any nodes until it's > completely finished loading? > > I also had a good number of "High Road; Low Road" names to untangle, and a > river to unplait. I do hope it stays done this time :) _______________________________________________ talk mailing list [email protected] http://lists.openstreetmap.org/cgi-bin/mailman/listinfo/talk
