Hi,
it depends on which kind of map you generate. For a map without transparency you can use this command: convert -colors 255 <input> <output> if you have transparency in your tiles, then you can play around with pngnq: pngnq <input> In the end you can decrease the filesize with optipng or pngcrush. For example: pngcrush <input> <output> cheers, Jürgen -------- Original Message -------- Subject: [Mapnik-users] Standard way to compress the PNG Tiles (02-Dez-2008 10:38) From: riteshambastha <[EMAIL PROTECTED]> To: [EMAIL PROTECTED] > > Hello, > > I am quite curious to know which solution does people use for compressing > the PNG Tiles. I know its off the track question. I have generated tiles of > 1.4 TB, and now I need to compress the PNGs. I generated 16-Bit PNGs, and I > believe a 8bit compression will do for me. > > I tried using ImageMagick, but its not the best one available. I used this > command to compress the PNGs: > > convert -depth 8 -type TrueColor $TmpFile PNG8:$NewFile > > Your help will be highly appreciated. > > Regards, > Ritesh Ambastha > -- > View this message in context: http://www.nabble.com/Standard-way-to- > compress-the-PNG-Tiles-tp20788860p20788860.html > Sent from the Mapnik - Users mailing list archive at Nabble.com. > > _______________________________________________ > Mapnik-users mailing list > [email protected] > https://lists.berlios.de/mailman/listinfo/mapnik-users To: [EMAIL PROTECTED] Cc: [email protected] _______________________________________________ Mapnik-users mailing list [email protected] https://lists.berlios.de/mailman/listinfo/mapnik-users
