Am Montag, 2. Juni 2008 19:31 schrieb Dirk-Lüder Kreie: > spaetz schrieb: > > On Mon, Jun 02, 2008 at 10:08:06AM -0700, Alan Millar wrote: > >> The main problem I imagine is large labels which might span across z13 > >> tiles. Perhaps a hybrid semi-captionless approach would work. Render > >> the z13 tiles with way labels but not POI labels, and render a z12 > >> caption layer with POI labels and composite them. All local to the [EMAIL > >> PROTECTED] > >> client; only upload the final results like now. > > > > That leaves only large areas (e.g. forests) that cover a full z13 tile to > > be solved. > > > >> This is sounding complicated, but could be possible without impacting > >> all other current z12 dependencies. > > > > Yep, this is the way I would think it could work easiest. > > I don't think there are many tiles that fail on z12 directly. It's > mostly the higher zooms that operate on the full svg that kill inkscape. > (the z13..17 tiles are all cut from svgs that cover the full z12 area) > > There has been done some work towards splitting that up, but it's not as > easy as just cutting them up. You have to preserve labels, areas and so > forth.
Large labels can only result from place names (to my knowledge), so you could simply keep all nodes with a name (see my other reply). As to areas, they could be copied into the subtiles as well, if they cross subtiles (only those are relevant). Regards, Marc
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