Single-character shields uncentered

[pnorman]

Most obvious with X, but also true with "1", the most common single-character ref.

http://www.openstreetmap.org/#map=17/36.84028/10.21406

[gravitystorm]

I suspect this is a mapnik issue, but it could be worth checking that there's nothing daft with our shield icons first.

See e.g. http://gis.19327.n5.nabble.com/text-placement-bug-in-shieldsymbolizer-td5339352.html

[pnorman]

I fiddled with shield placement for several hours (https://twitter.com/penorman/status/483406400236707840) when writing SVG shields. I have a fix which involves shifting the shields in the SVG by about 1.5 pixels.

It also turns out that this bug is also present for all shields, not just one-character shields.

Is there something daft? Probably, I can't get a simple 2px circle to place in the middle of the text by adjusting any of the stylesheet shield parameters. In all honesty, after spending 6 hours staring at shields, what I have is "good enough".

[dieterdreist]

2014-06-30 20:22 GMT+02:00 Paul Norman notifications@github.com:

Is there something daft? Probably, I can't get a simple 2px circle to
place in the middle of the text by adjusting any of the stylesheet
shield parameters.

IIRR there is a bug in mapnik regarding shields and their text placement
(also vertically it used to be inconsistently placed).

[pnorman]

also vertically it used to be inconsistently placed

Yes, I had to adjust both directions, and by different amounts