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buildings disappear under area-streets #2153

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openstreetmap-trac opened this issue Jul 23, 2021 · 4 comments
Closed

buildings disappear under area-streets #2153

openstreetmap-trac opened this issue Jul 23, 2021 · 4 comments

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@openstreetmap-trac
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Reporter: dieterdreist
[Submitted to the original trac issue database at 4.26pm, Sunday, 9th August 2009]

e.g. http://www.openstreetmap.org/?lat=41.910701&lon=12.476386&zoom=18&layers=B000FTF
(compare to mapnik old and osmarender)
the obelisc (micromapped as area) is no more visible. (center of piazza del popolo). As this object is part of the square, I don't want to exclude it with relations (multipolygon).

@openstreetmap-trac
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Author: dieterdreist
[Added to the original trac issue at 4.42pm, Tuesday, 10th November 2009]

OK, changed the mapping by creating a multipolygon. The name stays at the outer, as it comprises both, the obelisc and the pedestrian area, but the pedestrian area went to the multipolygon, because the obelisc is not part of the street.

The rendering should be fine now, besides that the name is not rendered anymore. If I put the name on the multipolygon, I would exclude the obelisc from the square.

The same issue you can find here:
http://www.openstreetmap.org/?lat=41.902208&lon=12.45767&zoom=18&layers=B000FTF
the name (St. Peter's square) is on the outer, because it includes the fountains and the obelisc.

@openstreetmap-trac
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Author: Pieren
[Added to the original trac issue at 4.43pm, Wednesday, 26th May 2010]

I'm not sure if a multipolygon relation is the correct solution. It works fine when the building is in the middle of a park or a forest. It should be the same when the area is pedestrian, no matter if the key is 'highway' and not 'natural' or 'leisure'.

@openstreetmap-trac
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Author: Pieren
[Added to the original trac issue at 4.49pm, Wednesday, 26th May 2010]

Replying to [comment:4 Pieren]:

I'm not sure if a multipolygon relation is the correct solution. It works fine when the building is in the middle of a park or a forest. It should be the same when the area is pedestrian, no matter if the key is 'highway' and not 'natural' or 'leisure'.
Note that the multipolygon inner/outer workaround doesn't work if the building is only partially overlapping the pedestrian area. See the Eiffel tower in Paris for instance:
http://www.openstreetmap.org/?lat=48.85818&lon=2.29455&zoom=17&layers=B000FTF
the tower is hidden by the pedestrian area and only the feet outside the area are visible (quite funny but not really nice). Even playing with the layer tag is not helping.

@openstreetmap-trac
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Author: Ldp
[Added to the original trac issue at 10.07pm, Thursday, 10th March 2011]

Semi-fixed in r23354 a few months ago.

Semi, because the Eiffel Tower is still partially hidden. Not by the pedestrian area, but by the pedestrian ways that are in the pedestrian area. #cannotfixthat

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