> On Wed, Mar 5, 2008 at 10:39 AM, Steve Hill <[EMAIL PROTECTED]> wrote:
>> It seems to be affecting all the blank tiles (i.e. no ways, points, etc
>> crossing them). Does Mapnik try to do anything "smart" when dealing with
>> blank tiles (e.g. using a prerendered tile instead of re-rendering each
>> one individually - if that's the case, maybe the prerendered tile is
>> broken </blind-spectulation>).
>
> No, mapnik does nothing special in that case. However, if you're using
> old coastline data to render the background then some wierd wrapping
> effects might be causing your problems.
Just a quick note to say that I've resolved this problem - Mapnik itself
was working ok, but it seems that ImageMagick on CentOS 5.1 is broken so
when the generate_tiles.py script ran convert on the generated tiles it
produced trashed tiles. Installing the Fedora 7's ImageMagick fixed the
problem.
- Steve
xmpp:[EMAIL PROTECTED] sip:[EMAIL PROTECTED] http://www.nexusuk.org/
Servatis a periculum, servatis a maleficum - Whisper, Evanescence
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