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OCM: highway segments not rendered due to incompletely described relation #4536

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openstreetmap-trac opened this issue Jul 23, 2021 · 1 comment

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@openstreetmap-trac
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Reporter: velotopist
[Submitted to the original trac issue database at 6.16pm, Tuesday, 21st August 2012]

I observed that some highways are not properly rendered in OCM when they are part of an incompletely described relation (gaps, Y-connections). An example is relation 901203 (german cycle route D3).

It seems that some nodes of the relation (in correctly described areas) are connected like a "zigzag" pattern to nodes at interruptions some hundreds meters or kilometers far away (the bad order of the nodes can be seen in a gpx download of the relation).

This prevents highways from being correctly rendered and it causes interruptions in the color line representing the relation - far away from the real relation problem (compare attached OCM and OSM screenshots).

@openstreetmap-trac
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Author: velotopist
[Added to the original trac issue at 8.33pm, Wednesday, 22nd August 2012]

The errors in the 901203 relation were repaired in the last days, so the effect will disappear in the near future.

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