s/png256/png/ in mod_tile/gen_tile.cpp did the trick mapnik is revision 1163, which is prior to Jon's fix, so updating mapnik could likely fix this problem as well.
Thanks all! Mikel ________________________________ From: Dane Springmeyer <[email protected]> To: Mikel Maron <[email protected]> Cc: Jon Burgess <[email protected]>; Mapnik users mailing-list <[email protected]>; Artem Pavlenko <[email protected]> Sent: Friday, July 24, 2009 1:48:35 PM Subject: Re: [Mapnik-users] weird colored tiles Hey Mikel, 0.6.1 is pretty much trunk, so Jon's fix should be included. Seems like generally a problem with Mapnik's png256 format when used with styles like you have. png256 is the default format used in renderd, so you'd just recompile renderd after changing that from "png256" --> "png": http://trac.openstreetmap.org/browser/applications/utils/mod_tile/gen_tile.cpp#L429 Dane On Jul 24, 2009, at 1:20 PM, Mikel Maron wrote: Yes, it's 0.6.1 > >As Chris suggested, is it possible to adjust the color map size without >recompiling mapnik? > > >If not, I'll svn up and recompile everything, but would rather try to avoid >that right now :) > > > ________________________________ From: Jon Burgess <[email protected]> >To: Mikel Maron <[email protected]> >Cc: Mapnik users mailing-list <[email protected]>; Artem Pavlenko ><[email protected]> >Sent: Friday, July 24, 2009 12:07:56 PM >Subject: Re: [Mapnik-users] weird colored tiles > >On Fri, 2009-07-24 at 17:27 +0100, Artem Pavlenko wrote: >> Hi Mikel, >> >> I believe this has been fixed in trunk (perhaps even in 0.6.2) . What >> version are you running ? > > >If it only effects PNG files with 16 colormap entries then this could be >the fix: > > >$ svn log include/mapnik/png_io.hpp | more >------------------------------------------------------------------------ >r1179 | jburgess777 | 2009-06-13 19:27:44 +0100 (Sat, 13 Jun 2009) | 1 >line > >Fix reduce_4() to make it consistent with reduce_8(). This was breaking >tiles which were compressing down to a 16 entry colormap. All the pixels >were being set to the alpha index. > > > > Jon > > >_______________________________________________ >Mapnik-users mailing list >[email protected] >https://lists.berlios.de/mailman/listinfo/mapnik-users >
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