On 5 Mar 2008, at 13:23, Steve Hill wrote: > >> 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.
I suggest you try 'png256' mode in Mapnik to generate palette based pngs and to avoid ImageMagick all together. Another approach is to use 'color255' utility (somewhere in svn.openstreetmap.org) which is based on ImageMagick. > > - Steve > xmpp:[EMAIL PROTECTED] sip:[EMAIL PROTECTED] http:// > www.nexusuk.org/ > > Servatis a periculum, servatis a maleficum - Whisper, > Evanescence > > ________ Cheers Artem > _______________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users > _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
