fixed tiles may produce better coastlines, but you'll get "map too big" at some point as the map grows. so you could either set a large safety margin and get a lot more tiles or you'd have to fix the tiles anew more often.

Am 29.08.2011 09:08, schrieb Bartosz Fabianowski:

It still takes a little tweaking to get the coastlines right. I have
manually chosen the tile borders so that the coastline will end outside
the tile border. Only in the Swedish/Finnish border I am using
extend-sea-sectors to make up some coastline in Sweden.

This is why I collected the coastlines for all of Europe in a single 
file. When all European coastlines are available, you no longer have to 
tweak tile boundaries.

I think that it could be useful to have the tile-splitter support a set
of fixed tiles that it would split itself further as needed.

I presume you would then use this so that you extract a larger region 
and then let the splitter generate tiles for a subset of this region? 
With a sufficient margin of safety between the two regions, this should 
work by providing the splitter with coastline data even when tiles grow 
due to rounding.

- Bartosz
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