Opened 8 years ago

Closed 5 years ago

#3616 closed defect (duplicate)

[admin] Parish boundaries shown at zoom level 9 when admin_level missing

Reported by: pinkduck@… Owned by: mapnik-team@…
Priority: minor Milestone:
Component: mapnik Version:
Keywords: civil parish boundary zoom 9 admin_level Cc: katpatuka

Description

Re: http://osm.org/go/evq306--

Ways with boundary=administrative tag picked as part of relations with type=boundary are shown at zoom level 9 for the above region.

The ways themselves lack an admin_level tag, but the relations all feature admin_level=10. The renderer should infer the lowest value admin_level from both the relations and ways when considering whether to show the boundary at a given zoom level.

The author of these boundaries is user:chillly, who disagrees with adding admin_level tags to the ways to work around this render issue.

Change History (9)

comment:1 Changed 8 years ago by Ldp

'The renderer' can not do that. Not currently, and especially not at near 0 cost in processing time. There may be an opportunity to do that during the import, but diffs complicate that matter as well.

In the mean time, it has been documented for ages that the ways should also carry an admin_level tag, the lowest level (highest order) value that pertains to that boundary way.

comment:2 Changed 8 years ago by chillly

The user:chillly is entirely happy with the way things are and is not complaining in at all. The user:PinkDuck keeps wittering on about what (s)he perceives as a problem.

Adding admin_level tags to ways when they are already on the relation seems like Tagging For The Renderer to user:chillly who accepts that it may be difficult to render without it.

comment:3 Changed 8 years ago by katpatuka

Cc: katpatuka added

Seems to be the same issue: in my case the relation has admin_level=6 with member ways of the relation lacking the admin_level tag - ways start showing up on zl=9 (example way id=82587739). If I add admin_level=6 to the single member ways they start showing up at zl=11 (example way id=134541779). Do we have to be redundant?

comment:4 Changed 5 years ago by math1985

Summary: Parish boundaries shown at zoom level 9 when admin_level missing[admin] Parish boundaries shown at zoom level 9 when admin_level missing

comment:5 Changed 5 years ago by math1985

Is this still an issue?

comment:6 Changed 5 years ago by math1985

We should test if this still occurs.

comment:7 Changed 5 years ago by math1985

Resolution: wontfix
Status: newclosed

This issue is now being discussed on Github: https://github.com/gravitystorm/openstreetmap-carto/issues/714 Therefore, I will close the issue here.

comment:8 Changed 5 years ago by math1985

Resolution: wontfix
Status: closedreopened

comment:9 Changed 5 years ago by math1985

Resolution: duplicate
Status: reopenedclosed
Note: See TracTickets for help on using tickets.