
Hi, I don't use osmosis but osmconvert, from a script by Paco Tyson which includes french addresses (from BANO database). But without I obtain the same result. The scripts use "--precom-sea sea.zip" and "--bounds bounds.zip". I will try with a .poly file including the whole lake. Will report if it is OK, or not ! Thank you ! Best regards, Steph
Hi Steph,
my guess this is the problem of cutting data at the border.
Did you use some tools like osmosis with bounding polygon? It looks like the lake was cut with the border, but border is not added to polygon shape. There is straight line instead, which moves water on wrong side of coast line.
If you cut data with an option to preserve whole objects, then you will still get some problems, like for example whole lake but missing all data on an islands outside the border. The best solution I have found is to use bigger area (like full Europe in your case) and bounding polygon in splitter. This way you get all tiles filed with proper data, even outside bounding border.
-- Best regards, Andrzej