[Talk-GB] This one is driving me potty

[Ed Loach]

It’s almost as though the rendering database is missing a changeset
(or a replication diff containing that changeset), possibly

http://www.openstreetmap.org/browse/changeset/9728130

 

There are further anomalies a little to the northwest:

http://osm.org/go/euJg~OQQw-

(found by using the Browse data layer and panning around), and the
first way I checked 

http://www.openstreetmap.org/browse/way/135724737

was in the above changeset, as was a node I deleted earlier to try
and get the tertiary road to rejoin to the bridge when it first
started rendering again.

http://www.openstreetmap.org/browse/node/1490142552/history

 

Ed

 

From: Gregory Williams [mailto:gregory at gregorywilliams.me.uk] 
Sent: 25 September 2012 16:18
To: 'Richard Mann'; 'Jason Cunningham'
Cc: 'TalkGB ML'
Subject: Re: [Talk-GB] This one is driving me potty

 

I’ve managed to remove the kink from the road with this changeset:

 

http://www.openstreetmap.org/browse/changeset/13247989

 

I loaded the data in JOSM and showed the Mapnik rendering as the
background. I then checked the history of the nodes near to the kink
and found that the then penultimate location of node 31790851 was at
the point of the old kink in the road that was still being rendered.
Deleting that node from the road, which to my eye doesn’t really
alter its geometry visually, has fixed the issue.

 

I guess that for some reason or another the previous version of the
node, or at least the line geometry for the road which used it, was
still stored in the backing Postgres database used for rendering.
Hence it was being rendered based upon stale data.

 

Gregory

 

From: Richard Mann [mailto:richard.mann.westoxford at gmail.com] 
Sent: 25 September 2012 15:24
To: Jason Cunningham
Cc: TalkGB ML
Subject: Re: [Talk-GB] This one is driving me potty

 

Delete and redraw? I've tweaked it slightly and some things have
re-rendered. But it is a bit odd.

On Tue, Sep 25, 2012 at 2:42 PM, Jason Cunningham
<jamicuosm at googlemail.com> wrote:

 

On 25 September 2012 14:23, Brad Rogers <brad at fineby.me.uk> wrote:

If anybody can tell me how to go about rectifying break in
Rackenford
Road in the following area

http://www.openstreetmap.org/?lat=50.996550321579
<http://www.openstreetmap.org/?lat=50.996550321579&lon=-3.7341284751
8921&zoom=16> &lon=-3.73412847518921&zoom=16

I'd be very grateful.

 

The data within OpenStreetMap appears correct, and had been correct
for several months. The map used on the OpenStreetMap main page to
display the data is not updating (redrawing) to show the changes.
Not sure why this is happening because this map (mapnik) usually
updates very quickly.

I guess someone else might be able to answer why the map is
out-of-date.

Jason

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