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I'd like to get some comment on these faults at these coordinates: 5.14889 & 52.08576. The water (stream) is colored blue, okay. But without the entrance of the drain marked at the right spot ? Why is there a discrepancy between these items ? How is it possible to exist on the map ? Is any mapper allowed to correct it ? I'm curious... |
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From looking at the Bing imagery, way 71411667 does look like it's in the wrong place by 3-4m to me as well. The Bing imagery may not be correct, though - a couple of things to note about that:
The next question, then, is "how did it get there"? That's something that you'd have to ask the people that imported the 3dshapes data. How accurate was it supposed to be? Have other discrepancies in it been found elsewhere? The answer to the final question "Is any mapper allowed to correct it ?" is "yes" - but with a couple of caveats:
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Small variations like this are not uncommon and it is minor. Often they are simple to fix as long as you can check aerial alignments but in this case the water polygon shares nodes with some other polygons. You could contact the mapper who created it, by using the josm editor which will reveal mappers name when you click on a node so you can then contact him or her and ask them. Beginners can create and correct things (we all started somewhere) and the wiki will show you how, so gain some experience then if its not corrected by then do it yourself. If you try an edit and mess up exit without saving and no harm will be done. Good luck. 1
"the josm editor which will reveal mappers name when you click on a node" In Potlatch 2 you can do this by selecting Advanced mode then clicking the way/node ID at the top. This will open a list of who made what changes to the object.
(28 May '12, 10:04)
Richard ♦
Thanks Richard took me a little while to realise that I should click on the ID number to get details of the mapper and their edit note, which will be useful in future.
(28 May '12, 12:38)
andy mackey
Messing up is just what I did in an other area. Its a forest with paths, located near 5.03500 and 52.04230. Correcting the borders gave me some trouble. I tried, but like it looks 3dshapes connect them all together and I cant get back the green areas in the right colour.
(28 Jun '12, 23:12)
Hendrikklaas
If you mess up please do not save your edit, and please use the permalnk tool to point to the area you have trouble with. see this question: http://help.openstreetmap.org/questions/25/how-do-i-add-a-marker-to-a-map
(28 Jun '12, 23:56)
andy mackey
@Hendrikklaas - if a node is part of several different ways (which is common with the 3dshapes import in the Netherlands), in Potlatch2 you can click on a node and then press "/" (on British keyboards) or "#" (on german keyboards) to cycle through the ways that it's part of. At the position that you mention the issue might be with the grass multipolygon here, although it actually seems to render OK in standard view on OSM.org (and the tiles are up to date), so maybe it's just Potlatch it doesn't render in?
(29 Jun '12, 01:02)
SomeoneElse ♦
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Is http://www.openstreetmap.org/?lat=52.08576&lon=5.14889&zoom=18&layers=M the place you are asking about?
A lot of data around that point seem to origin from 3dShapes imports. http://wiki.openstreetmap.org/wiki/3dShapes