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#18261 closed enhancement (worksforme)

(Almost) overlapping nodes

Reported by: nkamapper Owned by: team
Priority: normal Milestone:
Component: Core validator Version:
Keywords: Cc:

Description

When copying a new road network from a different layer, the current validation will not identify identical or almost identical coordinates at intersections, which leads to manual merging of hundreds or thousands of nodes. They are identified by the validator as "way end node near other highway", however without the possibility of automatic fixing (merging the nodes). The problem occurs both for two new nodes and for one existing + one new node.

It would save a lot of time if we had a separate warning for these cases of overlapping or almost overlapping nodes, including the Fix button.

Example case (could also be identical coordinates):

Node 1: 60.118812199999994, 10.1441523
Node 2: 60.1188122, 10.1441523

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Change History (5)

comment:1 Changed 16 months ago by Don-vip

Owner: changed from team to nkamapper
Status: newneedinfo

Can you please attach an example .osm file?

comment:2 Changed 16 months ago by nkamapper

Consider the 0101Elveg.osm file in this folder: https://drive.google.com/open?id=1FDaNdR47BYkSiLgnrtfQlYmCO_sDHW3K

If I for example first copy all highway=trunk and highway=secondary to a different layer, and then copy all the other highways to the same layer, the validator will produce:

  • 953 "highway duplicated nodes"
  • 1072 "crossing highways"
  • 854 "way end node near other highway"

All of these cases are in fact duplicated nodes, but only the first category can be fixed automatically. The other 1072+854 cases requires individual manual merging.

When importing missing groups of highways this becomes a very time consuming task. It occurs also when subsets of the imported highways have already been uploaded to OSM.

comment:3 Changed 16 months ago by Don-vip

Owner: changed from nkamapper to team
Status: needinfonew

comment:4 Changed 16 months ago by Don-vip

If you fix the first validation group then perform validation again, all other errors disappear. There is no problem to fix for me.

comment:5 Changed 16 months ago by Don-vip

Resolution: worksforme
Status: newclosed

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