[OSM-talk] Mapnik tile boundaries alignment anomolies

D Tucny d at tucny.com
Wed Aug 8 06:41:37 BST 2007

On 06/08/07, D Tucny <d at tucny.com> wrote:
> Hi Folks,
> Has anyone else noticed issues at tile boundaries in the mapnik layer?
> I'm seem bits where the top and bottom of tiles seem to be noticeably out
> of alignment...
> e.g.
> http://www.informationfreeway.org/?lat=30.266893122193228&lon=120.1281632014712&zoom=17&layers=0000F0B0
> (hilighted on attached)
> Interestingly, in the two visible issues on the right the top tiles seem
> to be offset slightly to the right of the bottom tiles, and on the two
> issues on the left, the top tiles seem to be offset slightly to the left of
> the bottoms tiles...
> This is visible on both informationfreeway and www.openstreetmap.org (I
> know they use the same tiles, but, as I noticed it first on
> informationfreeway I just wanted to rule it out as the cause, so checked
> both), and it's not visible on the T at H layer...
> Is this some sort of projection issue?
> d

Original message with 100KB image attached seems to be waiting in some
moderation queue to be released...  so...  uploaded to the wiki...

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