On Sun, Oct 19, 2008 at 04:44:29PM +0200, Dirk St?cker wrote:
> On Sun, 19 Oct 2008, spaetz wrote:
> 
> > Ahh, not that easy, unfortunately. Adding in the mixed one would be 
> > possible without problems, but showing different images based on layers 
> > would really require modifications to mod_tah.c (more hardcoding and 
> > specialcasing there that I would really like to avoid). It should be
> 
> Well, but's the right way to do. The oceantiles overlay has nothing to do 
> with the missing layer handling (it only represents the data of that), so 
> why should it use the same images?

Missing layers have nothing at all to do with this. The oceantiles.dat layer 
shows exactly what it is supposed to do: land/sea tiles based on oceantiles.dat 
(server version).

I want the tile serving code to be as fast as possible. Hardcoding ever more 
special cases like:
"if layer is called 'oceantiles' then serve these images x,y,z based on ...." 
will result in a complex beast that nobody will want to touch. This was the 
development philosophy on the old PHP based server and I want to avoid a 
repetition of that.

I set the opacity of the oceantiles layer to 0.5 now, see .e.g.
http://server.tah.openstreetmap.org/Browse/slippy/?zoom=12&lat=51.53447&lon=3.66425&layers=BT

mixed tiles are still shown as water tiles, though. No idea what would be best 
in that case.

spaetz

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